Cancer Screening In Population Research Articles

Priority setting in scaled-up cancer screening in China: an systematic review of economic evaluation evidences

Objective: The existed economic evaluations of cancer screening in Chinese population are almost all single-cancer focused, evidence on parallel comparison among multiple cancers is lacking. Thus, the aim of this study was, from a priority setting perspective, to compare the cost-effectiveness of six common cancers(colorectal cancer, breast cancer, liver cancer, lung cancer, esophageal cancer and stomach cancer) to facilitate policy making in future scaled-up screening in populations in China. Methods: Partially based on our previous single-cancer systematic reviews (colorectal cancer, breast cancer, liver cancer, and lung cancer), evidence of economic evaluations of cancer screening in populations in mainland China were systematically updated and integrated. The main updates include: 1) Stomach cancer and esophageal cancer were newly added to the current analysis. 2) The literature searching was extended to 8 literature databases, including PubMed, EMbase, The Cochrane Library, Web of Science, CBM, CNKI, Wanfang Data, and VIP. 3) The period of publication year was updated to the recent 10 years: January 1, 2009 to December 31, 2018. 4) The study focused on populations in mainland China. Following the standard processes of literature searching, inclusion and exclusion from previous systematic reviews, the basic characteristics, evaluation indicators and main results of the included studies were extracted. All the costs were discounted to 2017 value using the by-year consumer price index of medical and health care residents in China and presented in the Chinese Yuan (CNY). The ratios of incremental cost-effectiveness ratio (ICER) to China's per capita GDP in 2017 were calculated (<1 means very cost-effective, 1-3 means cost-effective, >3 means not cost-effective). Given a specific indicator, the median value among all reported screening strategies for each cancer was calculated, based on which priority ranking was then conducted among all cancers when data available. Results: A total of 45 studies were included, 22 for breast cancer, 12 for colorectal cancer, 6 for stomach cancer, 4 for esophageal cancer (all conducted in high-risk areas), 1 for liver cancer and none for lung cancer (was not then considered for next ranking due to limited numbers of studies). When based on the indicator, the median ratio of cost per life-year saved to China's per capita GDP (reported in 12 studies), the lowest ratio (-0.015) was observed in esophageal cancer among 16 strategies of 2 studies (N=2, n=16), followed by 0.297 for colorectal cancer (N=3, n=12), 0.356 for stomach cancer (N=1, n=4) and 0.896 for breast cancer (N=6, n=52, P(75)=3.602). When based on another commonly used ICER indicator, the median ratio of cost per quality-adjusted life-year gained to China's per capita GDP (reported in 13 studies), the least cost was found in stomach cancer (0.495, N=3, n=8, P(75)=3.126), followed by esophageal cancer (0.960, N=1, n=4, P(75)=1.762) and breast cancer (2.056, N=9, n=64, P(75)=4.217). Data was not found for colorectal cancer. In addition, cost per cancer case detected was the most adopted indicator (32 studies). The median cost among all screening strategies for each cancer was 14 759 CNY for stomach cancer (N=5, n=7), 49 680 CNY for colorectal cancer (N=12, n=25) and 171 930 CNY for breast cancer (N=13, n=24), respectively. Data was not available for esophageal cancer and rare for precancer cases detected. Evidence related to cost per disability-adjusted life-year gained was not available. Conclusions: At China's national level and limited to the six cancers covered by the current study, the preliminary analysis suggests that stomach cancer and colorectal cancer were the most cost-effective target cancers and could be given priority in the future scaled-up screening in general populations. Esophageal cancer screening should be prioritized in high-risk areas. Breast cancer was also cost-effective in general but some of the intensive screening strategies were marginal. Data on liver cancer and lung cancer were too limited to conclude, and more well-designed studies and high-quality research evidence should be required. This priority ranking might be changed if other common cancers were involved analyses.

A Clinical Decision-Support System Based on Three-Stage Integrated Image Analysis for Diagnosing Lung Disease

Thoracic computed tomography (CT) technology has been used for lung cancer screening in high-risk populations, and this technique is highly effective in the identification of early lung cancer. With the rapid development of intelligent image analysis in the field of medical science and technology, many researchers have proposed computer-aided automatic diagnosis methods for facilitating medical experts in detecting lung nodules. This paper proposes an advanced clinical decision-support system for analyzing chest CT images of lung disease. Three advanced methods are utilized in the proposed system: the three-stage automated segmentation method (TSASM), the discrete wavelet packets transform (DWPT) with singular value decomposition (SVD), and the algorithms of the rough set theory, which comprise a classification-based method. Two collected medical CT image datasets were prepared to evaluate the proposed system. The CT image datasets were labeled (nodule, non-nodule, or inflammation) by experienced radiologists from a regional teaching hospital. According to the results, the proposed system outperforms other classification methods (trees, naïve Bayes, multilayer perception, and sequential minimal optimization) in terms of classification accuracy and can be employed as a clinical decision-support system for diagnosing lung disease.

Addressing Disparities in Cancer Screening among U.S. Immigrants: Progress and Opportunities.

The United States is home to 47 million foreign-born individuals, which currently represents over 14% of the U.S. population. With greater length of U.S. residence, immigrants experience increased risk for chronic disease including selected cancers; yet, they are less likely to access preventive health care services and undergo cancer screening. As a result, there have been concerted efforts to address disparities in cancer screening in immigrant populations. This minireview describes current progress in promoting participation in cancer screening among U.S. immigrants and explores potential opportunities for improving impact. Of the 42 studies included in the review, the majority targeted Asian and Latino immigrant populations and included some form of culturally specific educational programming, often delivered in-person by community health workers and/or using a multimedia format. Twenty-eight of the 42 studies also offered navigation assistance to help overcome logistical and access barriers to care, and these studies yielded somewhat greater increases in screening. Yet, despite considerable effort over the past 20+ years, screening rates remain well below national goals. Opportunities to harness digital health tools to increase awareness and engagement, evaluating nonclinic-based screening paradigms to promote greater participation, and increasing efforts to address the needs of other immigrant subgroups are likely to have beneficial outcomes. Together, these strategies may help reduce inequities in access and uptake of cancer screening in U.S. immigrant populations.See all articles in this Special Collection Honoring Paul F. Engstrom, MD, Champion of Cancer Prevention.

Cervical cancer screening behaviors and proximity to federally qualified health centers in South Carolina

IntroductionLack of participation in cervical cancer screening in underserved populations has been attributed to access to care, particularly among women in rural areas. Federally Qualified Health Centers (FQHCs) were created to address this need in medically underserved populations. This study observed proximity to three health centers in relation to cervical cancer screening rates in South Carolina. MethodsData were obtained from FQHC patient visits (from 3 centers) between 2007–2010 and were limited to women eligible for cervical cancer screening (n = 24,393). ArcGIS was used to geocode patients addresses and FQHC locations, and distance was calculated. Modified Poisson regression was used to estimate relative risk of obtaining cervical cancer screening within one yearor ever, stratified by residential area. ResultsFindings differed markedly by center and urban/rural status.At two health clinics, rural residents living the furthest away from the clinic (∼9 miles difference between quartile 4 and quartile 1) were more likely to be ever screened (RRs = 1.05 and 1.03, p-values < 0.05), while urban residents living the furthest away were less likely to be ever screened (RR = 0.85, p-value < 0.05). At the third center, only urban residents living the furthest away were more likely to be ever screened (RR = 1.02, p-value < 0.05). ConclusionsIncreased travel distance significantly increased the likelihood of cervical cancer screening at two FQHC sites while significantly decreasing the likelihood of screening at the 3rd site.These findings underscore the importance of contextual and environmental factors that impact use of cervical cancer screening services.

LDCT lung cancer screening in populations at different risk for lung cancer

IntroductionThe improvement of low-dose CT (LDCT) lung cancer screening selection criteria could help to include more individuals who have lung cancer, or in whom lung cancer will develop, while avoiding...

Burden of male hardcore smokers and its characteristics among those eligible for lung cancer screening

BackgroundThere are few data available about hardcore smokers and their behavioral characteristics among the lung cancer screening (LCS) population. The study investigated the burden of hardcore smokers within the LCS population, and determine the characteristics of hardcore smokers using nationally representative data in South Korea.MethodsWe used data from 2007 to 2012 from the Korean National Health and Nutrition Examination Survey. This study enrolled current male smokers aged 55–74 years. Among them, subjects eligible for LCS were defined as these populations with smoking histories of at least 30 PY. Hardcore smoking was defined as smoking >15 cigarettes per day, with no plan to quit, and having made no attempt to quit. Multivariate logistic regression analyses were used to estimate associations between hardcore smokers and various sociodemographic and other variables.ResultsThe proportion of hardcore smokers among those who met LCS eligibility criteria decreased from 2007 to 2012 (from 39.07 to 29.47% of the population) but did not change significantly thereafter (P = 0.2770), and that proportion was consistently 10–15% higher than that of hardcore smokers among all male current smokers. The proportion without any plan to quit smoking decreased significantly from 54.35% in 2007 to 38.31% in 2012. However, the smokers who had made no intentional quit attempt in the prior year accounted for more than half of those eligible for LCS, and the proportion of such smokers did not change significantly during the study period (50.83% in 2007 and 51.03% in 2012). Multivariate logistic regression analyses showed that hardcore smokers were older (OR = 1.05, 95% confidence interval [CI] 1.01–1.09) than non-hardcore smokers. Hardcore smokers exhibited higher proportion of depression (OR = 6.55, 95% CI 1.75–24.61) and experienced extreme stress more frequently (OR = 1.93, 95% CI 1.13–3.29). Smokers who did not receive smoking cessation education within the past year were significantly more likely to be hardcore smokers (OR = 4.15, 95% CI 1.30–13.22).ConclusionsIt is important to identify a subset of smokers unwilling or minimally motivated to quit within the context of lung cancer screening. Anti-smoking education should be enhanced to influence hardcore smokers’ behavior.

P698 IBD patients equally tolerate bowel preparation but need higher doses of sedation during colonoscopy in comparison with a population screening programme: Results from a prospective, single-centre study

Abstract Background IBD patients are intended to undergo several times colonoscopy during their lifespan. Adequate bowel preparation and sedation greatly contribute to high-quality colonoscopy and are even more important in this setting. However, few and low-quality studies addressed these issues. Aims: to prospectively evaluate the tolerability of bowel preparation and colonoscopy in ulcerative colitis (UC) and Crohn’s disease (CD) patients compared with subjects participating in a colorectal cancer population screening programme. Methods we consecutively enrolled CD and UC patients and screening subjects (SS) undergoing colonoscopy between August 2017 and August 2019. Bowel preparation was done by macrogol 4.000 + simethicone + sodium-sulphate-anhydrous. We recorded endoscopic, clinical and demographic features; quality of cleansing by Boston Bowel Preparation Scale (BBPS; from 0 the worst to 9 the best); sedation dose and need to increase the initial doses of midazolam (3.0 mg) and fentanyl (0.05 mg). Tolerability of bowel preparation, discomfort and pain during colonoscopy were assessed by Visual Analogue Scale (VAS) from 0 to 100 mm. Results 65 UC (26 women, mean age 50.6 ± 15.4 years), 65 CD (29 women, mean age 44.7 ± 3.9) and 94 SS (47 women, mean age 61.9 ± 6.9) enrolled. Bowel preparation was similarly tolerated in UC (70.3 ± 17.7 mm), CD (73.1 ± 12.7 mm) and SS (73.2 ± 12.6 mm) (p = 0.397). Complete colonoscopy was similarly done in UC (61/65, 93.8%), CD (60/65, 92.3%) and SS (91/94, 96.8%) (p = 0.364). BBPS did not show significant differences between UC (6.5 ± 1.0), CD (6.4 ± 1.1) and SS (6.4 ± 1.0) (p = 0.824). The need to increase sedation doses was significantly higher in CD (26/65, 40.0%) and UC (16/65, 24.6%) than in SS (4/94, 4.3%) (p &amp;lt; 0.0001). The mean increases in midazolam and fentanyl doses were significantly higher in CD (0.446 ± 0.660 mg and 0.009 ± 0.019 mg, respectively) and UC (0.300 ± 0.620 and 0.008 ± 0.018 mg) than in SS (0.042 ± 0.250 mg and 0.001 ± 0.007 mg) (p &amp;lt; p &amp;lt; 0.0001 in both cases). Discomfort and pain during colonoscopy were similar in UC (35.0 ± 23.0 mm and 27.6 ± 24.6 mm, respectively), CD (37.5 ± 22.2 mm and 28.8 ± 22.5 mm) and SS 33.7 ± 18.7 and 26.9 ± 19.8 mm) (p = 0.530 and p = 0.866, respectively). Conclusion in IBD patients, higher sedation doses are needed in order to warrant a tolerated colonoscopy. Bowel preparation is equally tolerated and efficacious in IBD patients and in screening subjects.

How to Manage a Patient With Gastric Intestinal Metaplasia: An International Perspective

How to Manage a Patient With Gastric Intestinal Metaplasia: An International Perspective

Preliminary Evaluation of Educational Outreach to Promote Colorectal Cancer Screening Among South Asians in the San Francisco Bay Area

Culturally-tailored interventions increase rates of colorectal cancer (CRC) screening in diverse populations. South Asian Americans have very low rates of CRC screening. Targeted interventions may improve community awareness and likelihood of undergoing screening. We identified and recruited multiple South Asian-serving community and religious centers to conduct South Asian physician-led presentations about CRC screening. A post-presentation survey tool was used to evaluate CRC screening history, intent to screen, and acceptance of a tailored brochure. In a convenience sample of 103 surveys, many participants had not undergone screening in the past (48%), and intent to screen after the presentation was high in those previously not screened (87%). Those who took a culturally-tailored brochure said they would share materials with family and friends (95% and 39% respectively). Our results support earlier findings of success in culturally-tailored interventions and indicate acceptance of culturally-tailored CRC screening outreach in community sites.

Barriers and Facilitators to Cancer Screening Among LGBTQ Individuals With Cancer.

Cancer screening may reduce mortality and frequency of the disease. Lesbian, gay, bisexual, transgender, or queer (LGBTQ) individuals are less likely than non-LGBTQ individuals to present for cancer screening. A literature search was performed using CINAHL®, PsycINFO®, and PubMed®. Articles were included if they were published in English from 2008 to 2018 and addressed barriers or facilitators to cancer screening in LGBTQ populations. Data were organized by thematic matrix and classified according to the multilevel influences on the cancer care continuum framework. This integrative review found that the lack of cancer screening data and knowledge about screening guidelines by LGBTQ populations and providers were major barriers to cancer screening adherence. Provider-created welcoming environments and caregiver inclusion were facilitators. Determinants of health-seeking behavior included patients' and providers' lack of cancer screening knowledge, as well as perceived discrimination. Nurses are in a unique position to provide cancer screening information and culturally sensitive care for LGBTQ populations with adequate education.

Type-specific Distribution of Cervical hrHPV Infection and the Association with Cytological and Histological Results in a Large Population-based Cervical Cancer Screening Program: Baseline and 3-year Longitudinal Data.

Objectives: This study aimed to describe the study design, and to analyze the type-specific distribution of cervical high-risk human papillomavirus (hrHPV) infection and its association with cytological and histological results in a large population-based screening program in Buji Street, Shenzhen, China.Methods: A total of 10,186 women aged 21-70 years were co-tested by Cobas4800 HPV assay and liquid-based cytology. Women were referred to colposcopy by virtue of being HPV16/18-positive, Other hrHPV-positive/ cytology ≥ASCUS, or HPV-negative/ cytology ≥LSIL. Three-year histological follow-up data were recorded.Results: The overall prevalence of hrHPV infection was 11.1%; among them, the highest type was Other hrHPV (8.9%), followed by HPV16 (1.6%) and HPV18 (0.6%). Moreover, the prevalence of hrHPV and that of HPV16 increased with cytological severity (Ptrend <0.001). In the baseline phase, 106 women had cervical intraepithelial neoplasia 2/3 (CIN2/3) and six had cervical cancers. During 3-year follow-up, 12 cases of CIN2/3 and no cancers were identified. For HPV16-positive women with normal cytology, the baseline risks of CIN2/3 or worse (CIN2+/CIN3+) were 15.5% (7.0-23.9%) and 4.2% (1.4-8.5%) respectively. For Other hrHPV-positive women with normal cytology, the cumulative 3-year risks of CIN2+/CIN3+ were 3.1% (1.0-5.2%) and 0.7% (0.3-2.1%) respectively. Strikingly, 75.8% (322/425) of abnormal cytology and 50.9% (29/57) HSIL cytology were attributed to Other hrHPV infection in HPV-positive women. Similarly, Other hrHPV infection led to large proportions of CIN2 (62.7%) and CIN3+ (43.9%) over 3-year follow-up.Conclusions: The co-testing modality is a feasible, effective and safe option for cervical cancer screening in urban population. Great importance should also be attached to 'genotypes excluding HPV16/18' and separate detection of each genotype when considering screening and vaccination strategy.

LadyMed™ Test for Human Papillomavirus Genotyping Directly from Self-Collected Vaginal Samples Without Any DNA Extraction Step: A Clinical Trial on Cervical Cancer Screening Population

LadyMed™ Test for Human Papillomavirus Genotyping Directly from Self-Collected Vaginal Samples Without Any DNA Extraction Step: A Clinical Trial on Cervical Cancer Screening Population

Advancing Cancer Control in San Francisco: Cancer Screening in Under-Represented Populations

Cancer risk and screening data are limited in their ability to inform local interventions to reduce the burden of cancer in vulnerable populations. The San Francisco Health Information National Trends Survey was developed and administered to assess the use of cancer-related information among under-represented populations in San Francisco to provide baseline data for the San Francisco Cancer Initiative. The survey instrument was developed through consultation with research and community partners and translated into 4 languages. Participants were recruited between May and September 2017 through community-based snowball sampling with quotas to ensure adequate numbers of under-represented populations. Chi-square tests and multivariate logistic regression were used between 2018 and 2019 to assess differences in screening rates across groups and factors associated with cancer screening. One thousand twenty-seven participants were recruited. Asians had lower rates of lifetime mammogram (p=0.02), Pap test (p<0.01), and prostate-specific antigen test (p=0.04) compared with non-Asians. Hispanics had higher rates of lifetime mammogram (p=0.02), lifetime Pap test (p=0.01), recent Pap test (p=0.03), and lifetime prostate-specific antigen test (p=0.04) compared with non-Hispanics. Being a female at birth was the only factor that was independently associated with cancer screening participation (AOR=3.17, 95% CI=1.40, 7.19). Screening adherence varied by race, ethnicity, and screening type. A collaborative, community-based approach led to a large, diverse sample and may serve as a model for recruiting diverse populations to add knowledge about cancer prevention preferences and behaviors. Results suggest targeted outreach efforts are needed to address disparate cancer screening behaviors within this diverse population.

Reducing indications for radial scar surgical excision in Slovenian breast cancer screening program

PurposeManagement of the radial scar (RS)/complex sclerosing lesion (CSL) diagnosed by core needle biopsy (CNB) in breast cancer screening population (BCSP) is controversial due to its intrinsic malignant potential. We aimed to determine (i) the rate of upgrade of the RS/CSL to malignant lesions and (ii) radiological characteristics and CNB histopathological findings of the lesions related to the upgrade of the RS/CSL to malignant lesions after surgical excision in our BCSP. Patients and methodsDatabase of Slovenian National Breast Cancer Screening Program was checked for terms RS/CSL in all patients who underwent CNB in the period 2008–2018. The ratios of upgrade from CNB RS/SCL to malignant lesions after surgical excision were calculated with specific interest to the radiological characteristics and the CNB patohistologically findings of the lesions. ResultsOf 162 patients with diagnosis of RS/CSL on the CNB, 121/156 (78%) cases underwent surgical excision. 6 of 121 (5%) cases were upgraded to a malignant diagnosis in surgical specimen, 3 cases of invasive carcinoma and 3 cases of DCIS, respectively. Five of the upgraded cases (5/6, 83.3%) showed atypical epithelial proliferative lesions (AEPL) on CNB. In one upgraded case without AEPL the lesion presented as 33 mm architectural distortion with microcalcifications on the mammogram. ConclusionsIn BCSP setting RS/CSL without AEPL/papilloma and those measuring less than 2 cm in the largest diameter can be followed radiologically. Increasing the number of cores and adequate sampling of the periphery and the centre of the RS/CSL improves the pick-up rate of associated atypia/malignancy.

Multitarget Stool DNA Test Performance in an Average-Risk Colorectal Cancer Screening Population.

INTRODUCTION:We set out to evaluate the performance of a multitarget stool DNA (MT-sDNA) in an average-risk colonoscopy-controlled colorectal cancer (CRC) screening population. MT-sDNA stool test results were evaluated against fecal immunochemical test (FIT) results for the detection of different lesions, including molecularly defined high-risk adenomas and several other tumor characteristics.METHODS:Whole stool samples (n = 1,047) were prospectively collected and subjected to an MT-sDNA test, which tests for KRAS mutations, NDRG4 and BMP3 promoter methylation, and hemoglobin. Results for detecting CRC (n = 7), advanced precancerous lesions (advanced adenoma [AA] and advanced serrated polyps; n = 119), and non-AAs (n = 191) were compared with those of FIT alone (thresholds of 50, 75, and 100 hemoglobin/mL). AAs with high risk of progression were defined by the presence of specific DNA copy number events as measured by low-pass whole genome sequencing.RESULTS:The MT-sDNA test was more sensitive than FIT alone in detecting advanced precancerous lesions (46% (55/119) vs 27% (32/119), respectively, P < 0.001). Specificities among individuals with nonadvanced or negative findings (controls) were 89% (791/888) and 93% (828/888) for MT-sDNA and FIT testing, respectively. A positive MT-sDNA test was associated with multiple lesions (P = 0.005), larger lesions (P = 0.03), and lesions with tubulovillous architecture (P = 0.04). The sensitivity of the MT-sDNA test or FIT in detecting individuals with high-risk AAs (n = 19) from individuals with low-risk AAs (n = 52) was not significantly different.DISCUSSION:In an average-risk screening population, the MT-sDNA test has an increased sensitivity for detecting advanced precancerous lesions compared with FIT alone. AAs with a high risk of progression were not detected with significantly higher sensitivity by MT-sDNA or FIT.

Machine Learning Interpretation of Extended Human Papillomavirus Genotyping by Onclarity in an Asian Cervical Cancer Screening Population.

This study aimed (i) to compare the performance of the BD Onclarity human papillomavirus (HPV) assay with the Cobas HPV test in identifying cervical intraepithelial neoplasia 2/3 or above (CIN2/3+) in an Asian screening population and (ii) to explore improving the cervical cancer detection specificity of Onclarity by machine learning. We tested 605 stratified random archived samples of cervical liquid-based cytology samples with both assays. All samples had biopsy diagnosis or repeated negative cytology follow-up. Association rule mining (ARM) was employed to discover coinfection likely to give rise to CIN2/3+. Outcome classifiers interpreting the extended genotyping results of Onclarity were built with different underlying models. The sensitivities (Onclarity, 96.32%; Cobas, 95.71%) and specificities (Onclarity, 46.38%; Cobas, 45.25%) of the high-risk HPV (hrHPV) components of the two tests were not significantly different. When HPV16 and HPV18 were used to further interpret hrHPV-positive cases, Onclarity displayed significantly higher specificity (Onclarity, 87.10%; Cobas, 80.77%). Both hrHPV tests achieved the same sensitivities (Onclarity, 90.91%; Cobas, 90.91%) and similar specificities (Onclarity, 48.46%; Cobas, 51.98%) when used for triaging atypical squamous cells of undetermined significance. Positivity in both HPV16 and HPV33/58 of the Onclarity channels entails the highest probability of developing CIN2/3+. Incorporating other hrHPVs into the outcome classifiers improved the specificity of identifying CIN2/3 to up to 94.32%. The extended genotyping of Onclarity therefore can help to highlight patients having the highest risk of developing CIN2/3+, with the potential to reduce unnecessary colposcopy and negative psychosocial impact on women receiving the reports.

INTEREST GROUP SESSION—CANCER AND AGING: CURRENT CHALLENGES IN CANCER SCREENING AMONG OLDER MINORITY POPULATIONS

Cancer is an important public issue around the world. Among types of cancer, lung and colorectal cancer are the most common in men while breast and cervical cancer are the most common in women. Detection of early stage cancer via screening can significantly reduce the mortality and prolong life. Although cancer prevention and control has been served as the national priority, individual’s utilization of cancer screening services is low due to limited knowledge of cancer screening and ineffective patient-provider commutation, especially in minority populations. In this symposium, we will examine three scenarios that highlight the challenges of cancer screenings in minority populations. First, we will share the results from a mixed method study that investigate the knowledge and attitudes towards Low Dose Computed Tomography lung cancer (LDCT) screening and assess the smoking cessation needs for African Americans who receive LDCT screening in an effort to reduce the health burden of lung cancer. The next study will discuss how the characteristics of older Chinese adults from the United States and Taiwan are associated cancer screening communication with physicians (i.e., whether doctor recommended screenings and whether communicated screenings with doctor). Lastly, we will share the results from a cross-sectional study that analyzed 10 years data of National Health Interview Survey to examine the difference in LDCT screening eligibility among Asian American (i.e., Chinese, Filipino, and other Asian) smokers. The discussant will summarize with an overview of the topic, and comment on the disparities of cancer screening in older minority populations.

2548. Provider Adherence to Cervical Cancer Screening in HIV Patient Populations

BackgroundAntiretroviral therapy has nearly normalized the life expectancy of people living with HIV (PLWH). However, malignancies still remain a major cause of morbidity and mortality in PLWH, and thus an important part of the clinical visit is age appropriate screening and referral to care, from Lancet 2019 for the poster. Most cases of cervical cancer occur in women who were either never screened or were screened inadequately. Over-screening for cervical cancer, on the other hand, leads to unnecessary stress and procedures, adding increased costs to the patient and to the healthcare system. The central aim of this project is to evaluate provider adherence at the Immunology Center (IC) to cervical cancer screening guidelines and to identify factors associated with over and underscreening.MethodsA retrospective chart review from January 1, 2015, to December 31, 2017 was performed. Study included HIV-seropositive women seen at the IC between April 2014 and June 2018. Exclusion criteria includes prior hysterectomy, abnormal cytology, cervical excision procedures, or other causes of immunosuppression.ResultsOf the 803 HIV-positive women identified, n = 262 met criteria for inclusion in the study. Overall adherence was 48%, with statistical significance found in cervical cancer screening between MDs and NPs, with an OR = 2.51 (P < 0.01). In regard to gender of provider, statistical significance in over screening was found between male and female providers, with an OR = 4.3 (P < 0.01), and in under screening between male and female providers, with an OR = 0.43 (P < 0.05). Over screening led to 44 excess pap smears over a 2-year period, yielding an excess cost of $6461. HPV co-testing was underutilized, with only one-third of encounters having HPV testing performed.ConclusionThis project gives us the opportunity to reeducate and retrain the clinical staff and practitioners providing cervical cancer screening at the Immunology Center. This is an ongoing quality improvement project, where adherence will be reassessed on a continuous basis at one-year intervals to ensure compliance with guidelines-based cervical cancer screening among female HIV seropositive patients at the Immunology Center. Disclosures All authors: No reported disclosures.

The Association Between Marital Status, Coronary Computed Tomography Imaging Biomarkers, and Mortality in a Lung Cancer Screening Population.

The purpose of this study was to elucidate the impact of being unmarried on coronary computed tomography (CT) imaging biomarkers and mortality in a lung cancer screening population. In this retrospective case-control study, 5707 subjects (3777 married; mean age: 61.9±5.1 y and 1930 unmarried; mean age: 61.9±5.3 y) underwent low-dose CT as part of the National Lung Screening Trial (NLST). The median follow-up time was 6.5 (Q1-Q3: 5.6 to 6.9) years. Being unmarried was defined as never married, widowed, separated, or divorced. Being married was defined as married or living as married. Our primary endpoint was cardiovascular disease (CVD)-related death; our secondary endpoint was all-cause mortality. Coronary CT imaging biomarkers (calcium score, density, and volume) on low-dose chest CT scan were calculated using dedicated automatic software. Weighted Cox proportional-hazards regression was performed to examine the association between marital status and death. Kaplan-Meier curves were generated to visualize subject survival. Being unmarried was significantly associated with an increased risk for CVD-related death (hazard ratio [HR]: 1.58; 95% confidence interval [CI]: 1.31-1.91) and all-cause mortality (HR: 1.39; 95% CI: 1.26-1.53), which remained significant even after adjusting for traditional cardiovascular risk factors (HR CVD death: 1.75; 1.44-2.12 and HR all-cause mortality: 1.58; 95% CI: 1.43-1.74) and coronary calcium score (HR CVD death: 1.58; 95% CI: 1.31-1.91 and HR all-cause mortality: 1.40; 95% CI: 1.27-1.54). Being unmarried is associated with an increased CVD-related death and all-cause mortality mainly due to cardiovascular etiology. On the basis of this, marital status might be taken into consideration when assessing individuals' health status.

Breast Cancer Population Screening Program Results in Early Detection and Reduced Treatment and Health Care Costs for Medicaid.

The National Breast and Cervical Cancer Early Detection Program has increased access to screening services for low-income females since 1991; however, evaluation information from states implementing the program is sparse. This study evaluates the impact of the Missouri program, Show Me Healthy Women (SMHW), on early detection and treatment cost. To estimate breast cancer treatment and health care services costs by stage at diagnosis among Missouri's Medicaid beneficiaries and assess the SMHW program impact. Analyzed Missouri Medicaid claims linked with Missouri Cancer Registry data for cases diagnosed 2008-2012 (N = 1388) to obtain unadjusted and incremental costs of female breast cancer treatment and follow-up care at 6, 12, and 24 months following diagnosis. Noncancer controls (N = 3840) were matched on age, race, and disability to determine usual health care cost. Regression analyses estimated the impact of stage at diagnosis on expenditures and incremental cost. Show Me Healthy Women participants were compared with other breast cancer patients on stage at diagnosis. A comparison of SMHW participants to themselves had they not been enrolled in the program was analyzed to determine cost savings. Expenditures increased by stage at diagnosis from in situ to distant with unadjusted cost at 24 months ranging from $50 245 for in situ cancers to $152 431 for distant cancers. Incremental costs increased by stage at diagnosis from 6 months at $7346, $11 859, $21 501, and $20 235 for in situ, localized, regional, and distant breast cancers, respectively, to $9728, $17 056, $38 840, and $44 409 at 24 months. A significantly higher proportion of SMHW participants were diagnosed at an early stage resulting in lower unadjusted expenditures and cost savings. Although breast cancer treatment costs increased by stage at diagnosis, the population screening program's significant impact on early diagnosis resulted in important cost savings over time for Medicaid.