Diagnosis Of Childhood Cancer Research Articles

Long-Term Pattern of Psychotropic Medication Uses Among Swedish Parents of Children Diagnosed With Cancer.

Parents experience a range of mental health disorders following their child's cancer diagnosis. It is thus essential to explore how the child's cancer diagnosis affects the dosage of psychotropic medication in both short- and long-term use, as well as potential disparities in utilization patterns between mothers and fathers. Using Swedish registers, we identified all parents whose children were diagnosed with cancer from July 2009 to December 2015 in Sweden. We randomly matched up to 5 parents of cancer-free children conditional on their baseline characteristics. All parents were followed up from 4 years before to 4 years after their child's diagnosis. Psychotropic medication cumulative defined daily doses (DDDs) were retrieved from the Swedish Prescribed Drug Register. Using interrupted time series analyses, we sought to investigate how childhood cancer diagnosis influences the evolving pattern of parental psychotropic medication dosage across time with consideration for potential differences compared with matched parents before the child's cancer diagnosis. We calculated the attributable proportion due to the diagnosis of childhood cancer. Following a child's cancer diagnosis, mothers experienced a steady increase in psychotropic medication use, averaging 4.9 DDDs per year compared with matched comparisons, with a 46.0% adjusted attributable proportion in the initial year. Fathers had an abrupt increase in psychotropic medication use in the first year after diagnosis, with an adjusted attributable proportion of 72.1%. Parents with lower education attainment tended to use more psychotropic medication. In response to a child's cancer diagnosis, parents showed increased use of psychotropic medication compared with matched comparisons. Additionally, utilization patterns differed between mothers and fathers. Timely prevention and early support for parents are needed to alleviate their psychological challenges, potentially mitigating the strain on medical resources associated with increased psychotropic medication use.

Relationship functioning and impact of health coverage models for parents of childhood cancer patients: A systematic review.

The current systematic literature review aimed to summarize and evaluate existing literature regarding parental relationship functioning during and after childhood cancer, with an exploratory evaluation regarding the impact of national health coverage model (proxy for finances). This review used MEDLINE, PsychInfo, Embase, and CENTRAL search database. Articles were reviewed (N = 3060) against inclusion criteria, with 512 abstracts screened and 87 full-text retrieved and reviewed. Inclusion criteria: (1) childhood cancer, (2) measures parental relationship functioning, (3) English, and (4) new, empirical data. A modified version of the Downs and Black checklist was used to assess risk of bias. Narrative synthesis was used to present and discuss results. Final included articles (N = 36) revealed mostly positive or neutral findings across parental relationship functioning subdomains within 6months (T1) and after 6months (T2) of childhood cancer diagnosis. Sexual intimacy was negatively impacted across timepoints. Parental stress was higher than norms at T1. Marital conflict and adjustment were also worse at T1 but returned to previous levels at T2. Some variability in parental relationship functioning was observed among the different health coverage models, but these differences were not significant. Results support systematic screening and systems-based parent support programs for families of children with cancer. Mixed-methods studies examining parental relationships longitudinally and utilizing operational definitions for out-of-pocket spending are needed.

The Effects of Having a Child with Cancer on Parental Psychology: A Cross-Sectional Study

Objective: In childhood cancers, parents are affected psychologically as well as children. We aimed to evaluate the effect of childhood cancer type and stage, as well as elapsed time from diagnosis, on the anxiety and stress indicators among parents. Materials and Methods: Patients aged between 0–18 years and diagnosed with cancer who were receiving chemotherapy (0–1 month, 1–6 month, 6–12 month) and completed treatment were included. Parents of those children (mother or father) who agreed to participate this study were also included. The personal information form and three psychological assessment scales (Beck Hopelessness Scale (PSS), Psychological Resilience Scale (PRS), Uncertainty Intolerance Scale (IUS)) were used for assessment of mental health of the parents. Scores of the scales and clinical features of the children with cancer were compared statistically. Results: The study included 84 parents (57 mothers, 27 fathers) and 84 children. The rate of children with solid tumors was 60% (n:50) and 40% of them were metastatic, which means advanced stage. The rate of the children with leukemia was 40% (n:34) and 23% of them were in high-risk group. According to the type (leukemia vs. solid tumors) and stage (high risk/advanced stage vs. others) of the cancer, there was no statistical difference among parents in the psychological scales (p > 0.05). Additionally, results of the psychological scales showed no significant difference between mothers and fathers (p > 0.05). The hopelessness scores are significantly higher among parents whose child’s treatment is terminated compared with those whose active therapy is ongoing, and resilience scores are higher among parents who have less than 1 month since diagnosis of childhood cancer than later periods. Conclusions: The regular assessment of mental health among parents of children with cancer across all the survivorship trajectory: at the time of diagnosis, during active therapy, and after treatment.

Illness cognitions and parental stress symptoms following a child's cancer diagnosis.

This research aims to explore parents' cognitive beliefs, specifically illness cognitions, in response to their children being diagnosed with cancer. This study is an initial step toward providing regular psychosocial assessment as a standard for psychosocial care for children with cancer and their families in Latvia. Data were collected from 120 parents (mostly mothers, n = 109) as an initial evaluation of the psychosocial risks faced by families participating in the support program "Holistic and Multidisciplinary Support for Children with Functional Disabilities and Their Family Members," which was managed by the Children's Hospital Foundation at the Children's Clinical University Hospital in Riga (Latvia) from 2020 to 2023. The patients comprised 66 boys and 54 girls (M age = 7.1, SD = 4.7, range: 0-17 years) with diverse cancer diagnoses. The parents completed the Latvian version of the Psychosocial Assessment Tool [adapted from PAT 3.1], with five subscales included in the data analysis (Social Support, Child Problems, Family Problems, Stress Reactions, and Family Beliefs). The Family Belief subscale was adjusted specifically to address the unique objectives and research questions of the current study. Significant correlations were found between children's psychological problems (e.g., getting upset about medical procedures, hyperactivity, excessive use of electronic devices, etc.) and parental stress reactions after diagnosis and with self-reported symptoms of anxiety and depression. The associations were statistically significant, even after controlling for sociodemographic and medical factors such as diagnosis. The relationship between children's problems and parental stress reactions was partly mediated by Family Beliefs about illness. The most informative beliefs associated with parental stress symptoms and the family's psychosocial risk level were identified, and significant results were found according to the main component of beliefs (catastrophic vs. optimistic) that explained 42% of the variance in the Family Beliefs subscale. Understanding the habitual responses to stress and identifying the thinking patterns of parents that lead to distorted views and maladaptive coping are essential for customizing personalized interventions to enhance treatment compliance. The Latvian version of PAT is a useful psychosocial screening measure in pediatric oncology settings.

Posttraumatic stress symptoms in parents of children with newly diagnosed cancer: 1-year trajectories and relationship variables as predictors.

The way in which parental posttraumatic stress symptoms (PTSS) unfold in the first year after a cancer diagnosis in their child is poorly understood. The aims of this study were to identify parental PTSS trajectories and to examine couple-related predictors (dyadic coping and we-disease appraisals), sociodemographic predictors (education and sex), and medical predictors (child's physical impairment) of trajectory membership. A 1-year prospective study was conducted, and 157 parents of children newly diagnosed with cancer were assessed. PTSS was measured with the Posttraumatic Diagnostic Scale for DSM-5 (PDS-5) at 3-6 weeks (T1), 6 months (T2), and 12 months (T3) after the diagnosis. The trajectories were identified with Latent Class Growth Analysis, the predictors were explored with binomial logistic regression. Two distinct trajectories were found. The majority of parents (86.0%) followed a low PTSS trajectory, characterized by initially low scores that slightly decreased over 12 months. In contrast, 14.0% of parents displayed a stable, high PTSS trajectory. A high trajectory of child's physical impairment and low scores in parental dyadic coping were significantly associated with the likelihood of a high parental PTSS trajectory. The findings provide new insights into the critical period of the first year after a child's cancer diagnosis. While most parents display a resilient, low PTSS trajectory, a minority consistently experience high PTSS levels. Child's physical impairment and dyadic coping should be considered as predictors for early identification of vulnerable parents. Incorporating dyadic coping in parental support following a childhood cancer diagnosis could be beneficial for parental mental health.

Danish population based study of familial epilepsy and childhood cancer.

Results from studies investigating the association between maternal or child epilepsy, use of anticonvulsants in pregnancy, and childhood cancer are inconsistent and at times contradictory. Linking Danish national databases, we obtained epilepsy and childhood cancer diagnoses, and anticonvulsant use data. We estimated adjusted odds ratios of all or specific childhood cancers in relation to maternal or child epilepsy and anticonvulsant therapies using conditional logistic regression. Maternal epilepsy was positively associated with all childhood cancers in offspring, specifically, with acute lymphoblastic leukemia (Odds Ratio (OR) = 1.68, 95% Confidence Interval (CI) = 1.16, 2.43) and Wilms tumor (OR = 2.13, 95% CI = 0.97, 4.68). When considering maternal ever (lifetime) ingestion of anticonvulsants, a positive association was found with all cancers (OR = 1.14, 95% CI = 1.00, 1.30), and central nervous system tumors (CNS) (OR = 1.36, 95% CI = 1.04, 1.76) as well as neuroblastoma (OR = 1.76, 95% CI = 1.06, 2.90) among offspring. Maternal anticonvulsant use before or during the index pregnancy was related to CNS tumors in offspring (OR = 1.99, 95% CI = 0.99, 4.00).

The Parent and Sibling’s Support of Pediatric Cancer

A child's cancer diagnosis causes a family to experience a tremendous deal of uncertainty. Fearing what lies ahead, parents and siblings frequently worry about how therapy will impact their child's and their family's lives. Siblings and parents might feel a variety of emotions, including guilt, rage, despair, and melancholy. Siblings of ill children deal with their own psychological and emotional difficulties. The circumstances they find themselves in may cause them to feel scared, nervous, or even furious. This study aimed to describe the support provided by parents and siblings to children with cancer in West Sumatra. This research utilized a cross-sectional design and was carried out from November 2023 to March 2024 at the Childhood Cancer Care West Sumatra. The study involved 55 children, chosen using an accidental sampling method. The TEIQUE-CF instrument was employed in this research, with descriptive analysis being conducted. Approximal, 61.8% of parents and siblings are emotional about paediatric cancer. By discussing these factors, families may better prepare mentally and emotionally for this protracted and difficult journey. Children with cancer have a greater chance of making a full recovery, both mentally and physically, if they get strong support from their parents and siblings.

Identifying early symptoms associated with a diagnosis of childhood, adolescent and young adult cancers: a population-based nested case-control study

BackgroundChildhood, teenage and young adult (CTYA, 0–24 years) cancers are rare and diverse, making timely diagnosis challenging. We aim to explore symptoms and symptom combinations associated with a subsequent cancer diagnosis and to establish their timeframe.MethodsUsing the QResearch Database, we carried out a matched nested case-control study. Associations between pre-specified symptoms encountered in primary care and a subsequent diagnosis of any cancer were explored using conditional logistic regression. Median diagnostic intervals were used to split symptoms into “late” and “early” timeframes to identify relevant early symptoms.Results3186 cases and 50,576 controls were identified from a cohort of 3,424,771 CTYA. We identified 12 novel associations, of which hemiparesis [OR 90.9 (95%CI 24.7-335.1), PPV = 1.6%], testicular swelling [OR 186.7 (95%CI 86.1-404.8), PPV = 2.4%] and organomegaly [OR 221.6 (95%CI 28.3-1735.9), PPV = 5.4%] had significant positive predictive values (PPV). Limb pain, a known marker of serious illness in children, was a recurrent early symptom across cancer subtypes. Similar clinical presentations were observed across childhood and TYA cancers.DiscussionUsing the largest cohort to date, we provide novel information on the time-varying predictive utility of symptoms in the diagnosis of CTYA cancers. Our findings will help to raise clinical and public awareness of symptoms, stratify those at higher-risk and ultimately aid earlier diagnosis.

Parents' experiences on handling paediatric anticancer drugs at home after an educational intervention.

The shift of treatment of paediatric cancer patients to include more care at home puts a lot of pressure on health care professionals (HCPs) to prepare and train parents on safe and correct drug handling at home. Parents must take in and understand the information presented to them while coping with their own fear related to their child's cancer diagnosis. In Sweden, parents are expected to handle and manipulate oral anticancer drugs (OADs) in the home setting. There is however a lack of a standardized method to inform and educate parents on how to handle OADs in a correct way at home. To describe parents' experiences of handling OADs at home after participating in an educational intervention. Educational intervention in the present study aimed to improve parents' knowledge in key concepts that is, handling OADs at home by using information presented in different forms. Fifteen parents to 12 children with cancer were recruited from a paediatric oncology ward in Sweden to participate in an interview. The interviews were transcribed verbatim and subjected to qualitative content analysis. Parents' experiences are presented in categories: Relieved stress, Awareness of own exposure, Facilitated my everyday life, Parents need continued support individually. The educational intervention resulted in both positive and negative feelings, increased awareness of drug exposure and correct drug handling at home. Practical training and information presented in different ways facilitated the process of drug handling. To handle the drug correctly at home parents requested to be trained and informed in the beginning of their child's oral drug treatment. In addition, parents requested to be individually approached by HCP to get answers to questions and concerns. This educational intervention study shows promising results for the method used by HCPs to inform and educate parents on complicated topics such as handling OADs at home.

"They Did Not Understand": Exploring Adult Survivors of Childhood Cancer's Memories of Their Experiences With Peers.

Background: Peer relationships are impacted by the diagnosis of childhood cancer. Children with cancer can feel isolation, such as bullying and lack of engagement, from their peers. As the rates of survival increase, one way to further learn about the experiences of childhood cancer is to reflect on the memories of adult survivors. This study examines adult survivors of childhood cancer's memories of their experiences with peers during their cancer. Method: Twenty-seven adult survivors (15 male, 12 female) of childhood cancer were recruited from Amazon Mechanical Turk, a crowdsourcing marketplace for survey distribution, and surveyed about their experiences with peers during childhood cancer. Using inductive thematic analysis, open-ended survey questions were analyzed. Results: Five main themes emerged, including age, perceptions of cancer, acts of kindness, peer responses, and limited peer engagement. Participants' memories included peers' lack of understanding about their diagnosis, prognosis, and treatment, positive and negative responses to their cancer diagnosis, acts of services and gifts from peers, and feelings of isolation during the cancer experience. Discussion: In the current study, adult survivors of childhood cancer had specific memories about how cancer impacted peer relationships. Such findings contribute to the evidence that children with cancer could benefit from psychosocial interventions, including education to peers about the diagnosis and the impact of diagnosis on peer relationships, peer engagement activities, and peer support groups.

Inpatient healthcare utilization in the first year following a childhood cancer diagnosis: A population-based analysis.

11138 Background: Children with cancer may require substantial healthcare resources during treatment, including inpatient care. Hospital utilization patterns at the population level, and factors associated with higher utilization, are not well-described. Methods: We conducted a retrospective cohort analysis of Washington State (WA) cancer registry data (1992-2013) linked to state birth (1974-2013), death (1992-2013), and hospital discharge (1992-2013) records to identify all WA children diagnosed with cancer <20 years. We examined hospitalization frequency and total inpatient bed days in the year after cancer diagnosis. To evaluate factors associated with outcomes of interest, we constructed multivariable negative binomial regression models of children with ≥1 inpatient admission, calculating incidence rate ratios (IRR). Covariates included rural residence (binary; census tract rural-urban commuting area codes), high neighborhood deprivation (binary; state-normative census block group Area Deprivation Index [ADI]), sex, race/ethnicity, diagnosis age, birth year, and cancer type (per International Classification of Childhood Cancer). Due to differences in utilization by cancer type, we also examined children in subanalyses with acute lymphoblastic leukemia (ALL), lymphomas, and solid (including central nervous system [CNS]) tumors. Results: 2,231 children (mean diagnosis age 7.2 years; 68% diagnosed since 2000) had 12,833 inpatient encounters. In the year after diagnosis, children had a median of 4 (IQR 2-8) hospitalizations/year at-risk, and 21 (IQR 8-54) inpatient days (median length of stay 4 days [IQR 2-6]). In multivariable analysis, high ADI (IRR 1.11, 95% CI 1.01-1.21), but not rural residence (IRR 0.95, 95% CI 0.85-1.05), was associated with greater hospitalization frequency. Female sex was associated with lower frequency (IRR 0.94, 95% CI 0.88-1.00). In analysis of total inpatient days, high ADI (IRR 1.15, 95% CI 1.02-1.29) and Hispanic ethnicity (IRR 1.31, 95% CI 1.13-1.51) were independently associated with greater inpatient days. In subanalysis of patients with ALL (N=497), associations between inpatient days and ADI (IRR 1.18, 95% CI 0.99-1.40) and Hispanic ethnicity (IRR 1.01, 0.84-1.23) were no longer significant. For lymphoma (N=259), associations were similar but also no longer significant (ADI IRR 1.14, 95% CI 0.78-1.71; Hispanic IRR 1.26, 95% CI 0.79-2.10). Among patients with solid/CNS tumors (N=1,151), associations with Hispanic ethnicity remained significant (IRR 1.46, 95% CI 1.19-1.80), but not ADI (IRR 1.11, 95% CI 0.95-1.30). Conclusions: Children with cancer spend considerable time inpatient during the year after diagnosis. Disparities in hospital utilization mirror some known disparities in childhood cancer survival. Initiatives to alleviate systemic disadvantages may reduce inpatient utilization for some groups.

B-NHL Cases in a Tertiary Pediatric Hematology-Oncology Department: A 20-Year Retrospective Cohort Study.

Non-Hodgkin lymphoma (NHL) is among the five most common pediatric cancer diagnoses in children and adolescents and consists of a heterogeneous group of lymphoid tissue malignancies -with B-cell-derived NHL accounting for nearly 80% of cases. Novel and high-throughput diagnostic tools have significantly increased our understanding of B-NHL biology and molecular pathogenesis, leading to new NHL classifications and treatment options. This retrospective cohort study investigated 17 cases of both mature B-cell NHL (Burkitt lymphoma or BL; Diffuse large B-cell lymphoma or DLBCL; Primary mediastinal large B-cell lymphoma or PMBCL; Follicular lymphoma or FL) and immature B-cell progenitor NHL (B-lymphoblastic lymphoma or BLL) that were treated in a tertiary Pediatric Hematology-Oncology Department during the last 20 years. Modern NHL protocols for children, adolescents, and young adults, along with the addition of rituximab, are safe and efficient (100% overall survival; one relapse). Elevated ESR was more prevalent than elevated LDH. Analyses have focused on immune reconstitution (grade ≥3 infections, lymphocyte and immunoglobulin levels recovery) and body-mass-index changes post-treatment, late effects (in 53% of patients), and the presence of histology markers BCL2, BCL6, CD30, cMYC, and Ki-67%. One patient was diagnosed with a second malignant neoplasm (papillary thyroid cancer).

Decision-Making Factors in Advanced or Incurable Childhood Cancer Diagnosis in Low- and Middle- Income Countries

Decision-Making Factors in Advanced or Incurable Childhood Cancer Diagnosis in Low- and Middle- Income Countries

Extracellular Vesicles for Childhood Cancer Liquid Biopsy.

Liquid biopsy involves the utilization of minimally invasive or noninvasive techniques to detect biomarkers in biofluids for disease diagnosis, monitoring, or guiding treatments. This approach is promising for the early diagnosis of childhood cancer, especially for brain tumors, where tissue biopsies are more challenging and cause late detection. Extracellular vesicles offer several characteristics that make them ideal resources for childhood cancer liquid biopsy. Extracellular vesicles are nanosized particles, primarily secreted by all cell types into body fluids such as blood and urine, and contain molecular cargos, i.e., lipids, proteins, and nucleic acids of original cells. Notably, the lipid bilayer-enclosed structure of extracellular vesicles protects their cargos from enzymatic degradation in the extracellular milieu. Proteins and nucleic acids of extracellular vesicles represent genetic alterations and molecular profiles of childhood cancer, thus serving as promising resources for precision medicine in cancer diagnosis, treatment monitoring, and prognosis prediction. This review evaluates the recent progress of extracellular vesicles as a liquid biopsy platform for various types of childhood cancer, discusses the mechanistic roles of molecular cargos in carcinogenesis and metastasis, and provides perspectives on extracellular vesicle-guided therapeutic intervention. Extracellular vesicle-based liquid biopsy for childhood cancer may ultimately contribute to improving patient outcomes.

Outcomes after cancer diagnosis in children and adult patients with congenital heart disease in Sweden: a registry-based cohort study

ObjectivePatients with congenital heart disease (CHD) have an increased cancer risk. The aim of this study was to determine cancer-related mortality in CHD patients compared with non-CHD controls, compare ages...

Using a priority setting exercise to identify priorities for guidelines on newborn and child health in South Africa, Malawi, and Nigeria

BackgroundSub-Saharan Africa is the region with the highest under-five mortality rate globally. Child healthcare decisions should be based on rigorously developed evidence-informed guidelines. The Global Evidence, Local Adaptation (GELA) project is enhancing capacity to use global research to develop locally relevant guidelines for newborn and child health in South Africa (SA), Malawi, and Nigeria. The first step in this process was to identify national priorities for newborn and child health guideline development, and this paper describes our approach.MethodsWe followed a good practice method for priority setting, including stakeholder engagement, online priority setting surveys and consensus meetings, conducted separately in South Africa, Malawi and Nigeria. We established national Steering Groups (SG), comprising 10–13 members representing government, academia, and other stakeholders, identified through existing contacts and references, who helped prioritise initial topics identified by research teams and oversaw the process. Various stakeholders were consulted via online surveys to rate the importance of topics, with results informing consensus meetings with SGs where final priority topics were agreed.ResultsBased on survey results, nine, 10 and 11 topics were identified in SA, Malawi, and Nigeria respectively, which informed consensus meetings. Through voting and discussion within meetings, and further engagement after the meetings, the top three priority topics were identified in each country. In SA, the topics concerned anemia prevention in infants and young children and post-discharge support for caregivers of preterm and LBW babies. In Malawi, they focused on enteral nutrition in critically ill children, diagnosis of childhood cancers in the community, and caring for neonates. In Nigeria, the topics focused on identifying pre-eclampsia in the community, hand hygiene compliance to prevent infections, and enteral nutrition for LBW and preterm infants.ConclusionsThrough dynamic and iterative stakeholder engagement, we identified three priority topics for guideline development on newborn and child health in SA, Malawi and Nigeria. Topics were specific to contexts, with no overlap, which highlights the importance of contextualised priority setting as well as of the relationships with key decisionmakers who help define the priorities.

Mental Health Care Utilization Among Parents of Children With Cancer

Caring for children diagnosed with cancer may adversely affect the mental health (MH) of parents. To characterize utilization of MH services among parents of children with vs without cancer using nationwide commercial claims data. For this cross-sectional study, the Merative MarketScan Commercial Claims Database was used to identify continuously insured families of children treated for cancer (aged ≤21 years at diagnosis) during 2010 to 2018, compared with families who matched eligibility criteria but did not have a child with a cancer history. Parents were assessed from 18 months before to 12 months after their child's cancer diagnosis. Analyses were conducted from February 2022 to September 2023. Children's cancer diagnosis. Outcomes included parents' MH-related visits during the first year following their child's cancer diagnosis. Logistic regressions compared outcomes between families of children with vs without cancer, adjusting for sociodemographic and clinical factors. This study included 4837 families of children with cancer (4210 mothers and 4016 fathers) and 24 185 families of children without cancer (21 444 mothers and 19 591 fathers) with continuous insurance enrollment. Most household leads were aged 35 to 54 years (3700 [76.5%] in families of children with cancer vs 17 812 [73.6%] in families of children without cancer) and resided in urban areas (4252 [87.9%] vs 21 156 [87.5%]). The probabilities of parents having anxiety-related visits (10.6% vs 7.0%), depression-related visits (8.4% vs 6.1%), and any MH-related visits (18.1% vs 13.3%) were higher in families of children with vs without cancer. Adjusted analyses showed absolute increases of 3.2 percentage points (95% CI, 2.3 to 4.0; 45.7% relative increase), 2.2 percentage points (95% CI, 1.4 to 3.0; 36.1% relative increase), and 4.2 percentage points (95% CI, 3.1 to 5.3; 31.3% relative increase) in the probabilities of 1 or both parents having anxiety-related visits, depression-related visits, and any MH-related visits, respectively, among families of children with vs without cancer. Such differences were greater in magnitude among mothers than fathers. In this cohort study of privately insured parents, those caring for children with cancer had a higher likelihood of utilizing MH care than other parents. These findings underline the importance of interventions toward targeted counseling and support to better meet MH care needs among parents and caregivers of children with cancer.

A Qualitative Study To Explore the Impact of Having Children with Cancer and Parental Adjustment

Background: Cancer diagnosis in children impacts not only the children themselves but also their parents, and the role of providing support during the treatment process is crucial. The illness’s complexity, the diagnosis process, and the course of treatment can have various effects on parents and family life. To cope with the challenges of caring for their chronically ill children, families adopt a normalization process to restore their routines. Therefore, this study aims to investigate the implications of a childhood cancer diagnosis on families and how parents normalize their daily lives in the face of this difficult situation. Methods: The study was a qualitative study conducted in a pediatric cancer shelter house in Bandung, Indonesia, from May to August 2018. Ten parents who had children with cancer were included in the study. Data were collected through interviews and thematically analyzed. Results: This study yielded five themes: 1) parents’ negative feelings when children are first diagnosed with the illness, 2) various changes in the family’s life, 3) the impact on the family’s quality of life, 4) family’s extra effort to overcome the illness’s impact and 5) parents’ expectations for social support. Conclusions: Cancer in children has a significant impact on the lives of the entire family, particularly parents. Normalizing the lives of parents who have children with cancer entails several adaptation or adjustment tasks. Nurses can assist families in adapting by guiding how to deal with the changes they are experiencing and accepting this as the new normal. Nurses can help families normalize their daily routines, provide social support, improve coping strategies, increase family closeness, and identify the source of support from other families or the community.

Exclusive Breastfeeding Duration and Risk of Childhood Cancers

Breastfeeding has been suggested to protect against childhood cancers, particularly acute lymphoblastic leukemia (ALL). However, the evidence stems from case-control studies alone. To investigate whether longer duration of exclusive breastfeeding is associated with decreased risk of childhood ALL and other childhood cancers. This population-based cohort study used administrative data on exclusive breastfeeding duration from the Danish National Child Health Register. All children born in Denmark between January 2005 and December 2018 with available information on duration of exclusive breastfeeding were included. Children were followed up from age 1 year until childhood cancer diagnosis, loss to follow-up or emigration, death, age 15 years, or December 31, 2020. Data were analyzed from March to October 2023. Duration of exclusive breastfeeding in infancy. Associations between duration of exclusive breastfeeding and risk of childhood cancer overall and by subtypes were estimated as adjusted hazard ratios (AHRs) with 95% CIs using stratified Cox proportional hazards regression models. A total of 309 473 children were included (51.3% boys). During 1 679 635 person-years of follow-up, 332 children (0.1%) were diagnosed with cancer at ages 1 to 14 years (mean [SD] age at diagnosis, 4.24 [2.67] years; 194 boys [58.4%]). Of these, 124 (37.3%) were diagnosed with hematologic cancers (81 [65.3%] were ALL, 74 [91.4%] of which were B-cell precursor [BCP] ALL), 44 (13.3%) with central nervous system tumors, 80 (24.1%) with solid tumors, and 84 (25.3%) with other and unspecified malignant neoplasms. Compared with exclusive breastfeeding duration of less than 3 months, exclusive breastfeeding for 3 months or longer was associated with a decreased risk of hematologic cancers (AHR, 0.66; 95% CI, 0.46-0.95), which was largely attributable to decreased risk of BCP-ALL (AHR, 0.62; 95% CI, 0.39-0.99), but not with risk of central nervous system tumors (AHR, 0.96; 95% CI, 0.51-1.88) or solid tumors (AHR, 0.87; 95% CI, 0.55-1.41). In this cohort study, longer duration of exclusive breastfeeding was associated with reduced risk of childhood BCP-ALL, corroborating results of previous case-control investigations in this field. To inform future preemptive interventions, continued research should focus on the potential biologic mechanisms underlying the observed association.

Abstract 3954: Increased mosaic chromosomal alterations among survivors of childhood acute myeloid leukemia

Abstract Background: We previously characterized point mutations of clonal hematopoiesis (CH) including single nucleotide variants or small insertion/deletions residing in a set of cancer-related genes (e.g., DNMT3A and TET2), and found that CH point mutations occurred at a much higher prevalence in childhood cancer survivors (CCS) than in age-sex-race matched community controls. However, mosaic chromosomal alterations (mCAs), another form of CH with megabase-scale structural alterations (copy gain, copy loss and copy-neutral loss of heterozygosity), have not been examined. Methods: Detection of mCAs was performed on whole-genome sequencing (WGS, 30X) data from 5-year CCS with the Mosaic Chromosomal Alterations (MoChA) caller which utilizes phased genotypes, coverage, and B allele frequency (BAF) at heterozygous sites (HETS). We implemented the pipeline established by the TOPMed consortium to detect low mutant cell fractions (CF ≥1%). Variant filtration criteria: minor allele frequency <1%, the read depth of either allele <5, and only one variant retained in each 1Kb window. Called mCA filtration criteria: <100 HETS; lod score <5; relative coverage >2.9 or BAF deviation >0.16 and relative coverage >2.5. Autosomal mCAs (CF ≥1%, HETS >100 and length >1Mb) retained. Multivariable Cox models evaluated the association between mCAs and specific late-effects including all-cause mortality, obesity, myocardial infarction (MI) or cardiomyopathy (CMP); multivariable logistic models evaluated the association between mCAs and childhood cancer diagnoses. All models were adjusted for age, sex and therapeutic exposures. Results: In our evaluation of 4,330 CCS (median age at blood draw: 26.8 years) and 433 controls (33.6 years) with WGS data from the St. Jude Lifetime Cohort, the prevalence of mCAs was slightly higher among CCS than community controls (4.83% vs. 4.16%). Among CCS, mCAs were associated with therapeutic exposures (alkylating agents: odds ratio [OR]=1.48, 95% CI=1.09-2.00; antimetabolites: 1.53, 1.02-2.31; corticosteroids: 0.60, 0.40-0.91). In contrast to recent mCA studies in the general population, we observed no co-occurrence with CH point mutations, and no associations with late-effects including all-cause mortality, obesity, MI or CMP. Interestingly, mCAs were significantly associated with the primary diagnosis of acute myeloid leukemia (AML, OR=2.86, 95% CI=1.63-5.01). Furthermore, this finding was replicated in 2898 5-year survivors from the Childhood Cancer Survivor Study (OR=3.77, 95% CI=1.94-7.33). Conclusion: mCAs were not associated with age-related morbidities and mortality among CCS. However, we identified a striking association between mCAs and previous diagnoses of AML independent of treatment exposures. If validated among AML patients at the time of diagnosis, mCAs, which reflect the underlying genome instability, may serve as a diagnostic biomarker for AML. Citation Format: Xijun Zhang, Na Qin, Qian Dong, Cheng Chen, John Easton, Heather Mulder, Xiang Chen, Kyla Shelton, Cindy Im, Yutaka Yasui, Greg Armstrong, Kirsten K. Ness, Melissa M. Hudson, Paul Auer, Jinghui Zhang, Zhaoming Wang. Increased mosaic chromosomal alterations among survivors of childhood acute myeloid leukemia [abstract]. In: Proceedings of the American Association for Cancer Research Annual Meeting 2024; Part 1 (Regular Abstracts); 2024 Apr 5-10; San Diego, CA. Philadelphia (PA): AACR; Cancer Res 2024;84(6_Suppl):Abstract nr 3954.