Observational Longitudinal Research Research Articles

Fear of recurrence in postoperative lung cancer patients: Trajectories, influencing factors and impacts on quality of life.

To investigate the trajectory, influencing factors and dynamic relationships between fear of cancer recurrence (FCR) and quality of life (QOL) in lung cancer patients. Prospective longitudinal study. Longitudinal data from 310 lung cancer patients across three hospitals in China were assessed at 1, 3, 6 and 12 months postoperatively (T1 -T4 ). Descriptive statistics characterised patient demographics, clinical characteristics, levels of FCR and QOL. A linear mixed-effects model was employed to analyse FCR trajectories, identify influencing factors on these trajectories, and predict the impact of FCR on QOL. FCR changed significantly over time, with a slight decrease during T1 -T2 , an increase at T3 and gradual decline at T4 . Higher fear levels were associated with female sex, suburban or rural residency, being a family breadwinner, presence of comorbidities and negative coping behaviours, and low family resilience. QOL negatively correlated with FCR, and FCR predicted lower QOL. At 3 and 6 months postoperatively, lung cancer patients, especially women, suburban or rural residents, family breadwinners, those with comorbidities, negative coping behaviours and low family resilience, reported high levels of FCR. Healthcare providers should pay special attention to lung cancer patients especially during the period of 3-6 months post-surgery and offer tailored interventions to improve their QOL. Understanding the FCR trajectories, its influencing factors and its negative impacts on QOL can guide the development of targeted interventions to reduce fear and enhance well-being in patients with cancer. Identifying the trajectories and influencing factors of fear of lung cancer recurrence in patients at different time points informs future research on targeted interventions to improve QOL. The study adhered to the guidelines outlined in the Statement on Reporting Observational Longitudinal Research.

Feeding disorders in preschoolers: a short-term outcome study in an Italian Family Care Program.

To provide a description about a cohort of preschoolers with feeding disorders (FD) recruited from the therapeutic nursery "Cerco Asilo" of a tertiary care University Hospital, and to evaluate the short-term clinical outcome after 6months of multidisciplinary treatment. The present inception cohort study was based on an observational longitudinal research design comparing families who underwent the multidisciplinary treatment and those who did not. 42 children (47.6% female; 52.4% males-mean age 36.7months, SD 17.2, range 2.3-65months) underwent FD assessment according to the DC-0-3R diagnostic criteria (T0). At the end of the assessment, 62% of families with FD children agreed to be included in the family-based treatment. Both treated and untreated children with FD underwent a follow-up clinical evaluation after 6months (T1) from baseline. Comparison of clinical features at T0 between groups of subjects resolving or not the FD was performed. To evaluate baseline factors associated with FD resolution, principal components analysis (PCA) was used to identify new synthetic variables that were then used in a logistics analysis. Moreover, clinical differences between T1 and T0 were compared with a t test. Two third of the cases (66.7%) resolvedthe FD, while one third (33.3%) did not. Children who had the FD resolved displayed at T0 significant differences in clinical features with respect to those who did not. Specifically, the FD subtype Feeding Disorder of Caregiver-Infant Reciprocity was strongly associated with resolution, while the subtype Infantile Anorexia was not. In addition, the component depicting "Anxious-Depressed", "Mood" and "Isolation" problems was independently associated with a significantly higher probability of resolution, similar to children having FD other than anorexia. FD in preschoolers are associated with problems in emotional development and in the relationship with parents. These difficulties tend to accentuate if the disorder persists. The study suggests the need to investigate the maintaining factors of FD in preschool age. Level IV: Evidence obtained from multiple time series with and without the intervention.

Overview of 8-hydroxy-2?-deoxyguanosine (8-ohdg) as DNA Damage Biomarker in Infants Who Live Near Gold Mines, Yogyakarta, Indonesia

Background: People living near gold mines have risks of Hg exposure. Hg as free radical will react to bodybiomolecules. Susceptible biomolecules are nucleic acid or DNA. With DNA damage biomarker using8-hydroxy-2?-deoxyguanosine(8-OhdG).Purpose: This research will give an overview of 8-OHdG in mother and infants living near gold mines.Research Method: This Observational Longitudinal research measures Hg level in mothers’ hair and urine,breast milk, cord blood, also infants’ hair and urine. Level of 8-hydroxy-2?-deoxyguanosine (8-OHdG) inurine is measured with Elisa Kit. Mercury Analyzerwas used to measure Hg.Results: Average of Hg in maternal hair and urine, cord blood, breast milk also infants’ hair and urine werehigh above Threshold Limit Value (TLV) by WHO. Showing occurrence of Hg accumulation in mothers.Infant Hg exposure has occurred during prenatal transferred through cord blood and postnatal through breastmilk. Average of 8-OHdG in maternal and infant urine were high above normal average level of peopleunexposed to Hg, i.e 2.28 nm/ml which shows occurrence of DNA damage.Conclusion: Maternal and infant Hg were high above TLV. Level of 8-OHdG in maternal and infant urinewere high above 8-OHdG level of people unexposed to Hg, indicating DNA damage inducted by mercury.

Does motivation predict return to work? A longitudinal analysis.

ObjectivesMotivation for return to work (RTW) reflects the degree of willingness to resume work activities and has been shown to be a crucial factor in long‐term work disability. The satisfaction of basic psychological needs and motivation as described by the Self‐Determination Theory (SDT) yield associations with outcomes such as quality of life and job satisfaction. The current study is the first study to examine whether motivation and basic psychological needs are predictive for RTW outcomes at 1‐year follow‐up.MethodsAbout 349 people with a work disability (mean = 131.32 days off work) participated in this observational longitudinal research. Quality of motivation (MAWS) and basic psychological need satisfaction and frustration (BPNSFS) were measured at baseline. At 12‐month follow‐up, differences in RTW were assessed in terms of (1) time until RTW, (2) partial RTW, (3) relapse within 12 months, (4) work disability longer than 12 months. Binary logistic and cox regression analyses were used.ResultsControlled motivation regarding the former job was related to shorter time until RTW. Autonomous motivation and amotivation did not seem predictive for RTW variables. The frustration of the basic needs was related to a longer work disability, need satisfaction was not related to the RTW variables. No significant predictors for relapse and partial RTW were found.ConclusionsThe frustration of basic psychological needs was predictive for a longer work disability. Controlled motivation on the other hand predicted faster RTW, which was an unexpected direction. SDT seems to have predictive value, yet underlying mechanisms remain unclear.

Gestational weight gain and offspring\u2019s cognitive skills: a systematic review and meta-analysis

BackgroundGestational weight gain has been associated with some adverse perinatal outcomes, but few studies have examined the association between gestational weight gain and offspring’s cognition and their conclusions are inconsistent. Our systematic review and meta-analysis aimed to synthesize the evidence regarding the association between gestational weight gain and offspring’s cognitive skills.MethodsIn this systematic review and meta-analysis (PROSPERO number, CRD42017073266), we systematically searched MEDLINE, EMBASE, Web of Science and the Cochrane Library for studies examining association between gestational weight gain and offspring’s cognitive skills, without restriction in study design or language. Two reviewers extracted in an independent way the data. The Quality of Reporting of Observational Longitudinal Research scale was used to assess the quality of included studies. Effect size (ES) for adjusted models and their corresponding 95% confidence intervals were calculated for (i) intelligence quotient, (ii) language related skills and (iii) mathematic related skills comparing offspring’s cognitive skills when gestational weight gain was within recommendations (as reference) with those from mothers whose gestational weight gain was above or below the recommendations.ResultsThirteen studies were included. There was a positive trend that associated gestational weight gain above recommendations with better offspring’s intelligence quotient, although not statistically significant (ES 0.02, 95% CI -0.00, 0.05; I2 = 0.00%).ConclusionsThere is a not significant positive association between gestational weight gain above recommendations and intelligence quotient and some studies reported associations between gestational weight gain and offspring’s cognitive skills. Our analyses confirm a wide variability in the results of studies published so far and highlights the need for conducting studies including specific samples of pregnant women by pre-pregnancy body mass index and trimester of pregnancy.

Risk factors and protective factors associated with incident or increase of frailty among community-dwelling older adults: A systematic review of longitudinal studies.

IntroductionFrailty is one of the greatest challenges facing our aging population, as it can lead to adverse outcomes such as institutionalization, hospitalization, and mortality. However, the factors that are associated with frailty are poorly understood. We performed a systematic review of longitudinal studies in order to identify the sociodemographic, physical, biological, lifestyle-related, and psychological risk or protective factors that are associated with frailty among community-dwelling older adults.MethodsA systematic literature search was conducted in the following databases in order to identify studies that assessed the factors associated with of frailty among community-dwelling older adults: Embase, Medline Ovid, Web of Science, Cochrane, PsychINFO Ovid, CINAHL EBSCOhost, and Google Scholar. Studies were selected if they included a longitudinal design, focused on community-dwelling older adults aged 60 years and older, and used a tool to assess frailty. The methodological quality of each study was assessed using the Quality of Reporting of Observational Longitudinal Research checklist.ResultsTwenty-three studies were included. Significant associations were reported between the following types of factors and frailty: sociodemographic factors (7/7 studies), physical factors (5/6 studies), biological factors (5/7 studies), lifestyle factors (11/13 studies), and psychological factors (7/8 studies). Significant sociodemographic factors included older age, ethnic background, neighborhood, and access to private insurance or Medicare; significant physical factors included obesity and activities of daily living (ADL) functional status; significant biological factors included serum uric acid; significant lifestyle factors included a higher Diet Quality Index International (DQI) score, higher fruit/vegetable consumption and higher tertile of all measures of habitual dietary resveratrol exposure; significant psychological factors included depressive symptoms.ConclusionsA broad range of sociodemographic, physical, biological, lifestyle, and psychological factors show a longitudinal association with frailty. These factors should be considered when developing interventions aimed at preventing and/or reducing the burden associated with frailty among community-dwelling older adults.

FRI0233 Multireader Evaluation Could be an Alternative to Monoreader Evaluation and Improve Feasibility to Detect Radiographic Progression in Large Longitudinal Cohort of Rheumatoid Arthritis Patients (ESPOIR)

BackgroundStructural progression in rheumatoid arthritis (RA) is a major outcome. Radiographic scoring should be performed by one or two readers, blinded to clinical data. This method may be limited in...

The effect of two lottery-style incentives on response rates to postal questionnaires in a prospective cohort study in preschool children at high risk of asthma: a randomized trial

BackgroundIn research with long-term follow-up and repeated measurements, quick and complete response to questionnaires helps ensure a study’s validity, precision and efficiency. Evidence on the effect of non-monetary incentives on response rates in observational longitudinal research is scarce.ObjectivesTo study the impact of two strategies to enhance completeness and efficiency in observational cohort studies with follow-up durations of around 2 years.Method and interventionIn a factorial design, 771 children between 2 and 5 years old and their parents participating in a prospective cohort study were randomized to three intervention groups and a control group. Three types of lotteries were run: (i) daytrip tickets for the whole family to a popular amusement park if they returned all postal questionnaires, (ii) €12.50-worth gift vouchers for sending back the questionnaire on time after each questionnaire round and (iii) a combination of (i) and (ii).Main outcome measuresPrimary outcome was the proportion of participants who returned all questionnaires without any reminder. Secondary outcomes were ‘100% returned with or without reminder’, ‘probability of 100% non-response’, ‘probability of withdrawal’, ‘proportion of returned questionnaires’ and ‘overall number of reminders sent’.Statistical analysisAfter testing for interaction between the two lottery interventions, the two trials were analysed separately. We calculated risk differences (RD) and numbers needed to “treat” and their 95% confidence intervals.ResultsDaytrip nor voucher intervention had an effect on the proportion of participants who returned all questionnaires (RD −0.01; 95% CI-0.07 – 0.06) and (RD 0.02; 95% CI-0.50 – 0.08), respectively. No effects were found on the secondary outcomes.ConclusionOur findings do not support the idea that lottery-style incentives lead to more complete response to postal questionnaires in observational cohort studies with repeated data collection and follow-up durations of around 2 years.

RE: “QUALITY OF REPORTING OF OBSERVATIONAL LONGITUDINAL RESEARCH”

Observational longitudinal research is particularly useful for assessing etiology and prognosis and for providing evidence for clinical decision making. However, there are no structured reporting requirements for studies of this design to assist authors, editors, and readers. The authors developed and tested a checklist of criteria related to threats to the internal and external validity of observational longitudinal studies. The checklist criteria concerned recruitment, data collection, biases, and data analysis and descriptive issues relevant to study rationale, study population, and generalizability. Two raters independently assessed 49 randomly selected articles describing stroke research published from 1999 to 2003 in six journals: American Journal of Epidemiology, Journal of Epidemiology and Community Health, Stroke, Annals of Neurology, Archives of Physical Medicine and Rehabilitation, and American Journal of Physical Medicine and Rehabilitation. On average, 17 of the 33 checklist criteria were reported. Criteria describing the study design were better reported than those related to internal validity. No relation was found between study type (etiologic or prognostic) or word count and quality of reporting. A flow diagram for summarizing participant flow through a study was developed. Editors and authors should consider using a checklist and flow diagram when reporting on observational longitudinal research.

Quality of Reporting of Observational Longitudinal Research

Observational longitudinal research is particularly useful for assessing etiology and prognosis and for providing evidence for clinical decision making. However, there are no structured reporting requirements for studies of this design to assist authors, editors, and readers. The authors developed and tested a checklist of criteria related to threats to the internal and external validity of observational longitudinal studies. The checklist criteria concerned recruitment, data collection, biases, and data analysis and descriptive issues relevant to study rationale, study population, and generalizability. Two raters independently assessed 49 randomly selected articles describing stroke research published from 1999 to 2003 in six journals: American Journal of Epidemiology, Journal of Epidemiology and Community Health, Stroke, Annals of Neurology, Archives of Physical Medicine and Rehabilitation, and American Journal of Physical Medicine and Rehabilitation. On average, 17 of the 33 checklist criteria were reported. Criteria describing the study design were better reported than those related to internal validity. No relation was found between study type (etiologic or prognostic) or word count and quality of reporting. A flow diagram for summarizing participant flow through a study was developed. Editors and authors should consider using a checklist and flow diagram when reporting on observational longitudinal research.