Preventative Cancer Screening Rates Among Uninsured Patients in Free Clinics: A Retrospective Cohort Study of Cancer Survivors and Non-cancer Survivors

Background

There is limited research on screening rates among uninsured cancer survivors. Uninsured cancer survivors are at higher risk of poorer health outcomes than the insured due to limited access to preventative screening for secondary cancers. This study examines the rates of surveillance and screening of uninsured cancer survivors and compares to uninsured patients without a cancer history seen in free clinics.

Methods

Data were collected retrospectively from electronic medical records and paper charts of patients from 10 free clinics between January 2016 and December 2018 in the Tampa Bay area. The prevalence of socioeconomic characteristics, cancer diagnoses, and screening practices were compared for cancer survivors and free clinic patients without a history of cancer. Study participants were determined to be eligible for cancer screenings based on the United States Preventive Services Task Force guidelines.

Results

Out of 13 982 uninsured patients frequenting free clinics between 2016 and 2018, 402 (2.9%) had a documented history of cancer. Out of the 285 eligible cancer survivors, 44 (15.4%) had completed age-appropriate colon cancer screening. Among the 170 female cancer survivors, 75 (44.1%) had completed breast cancer screenings, and only 5.9% (59/246) had completed cervical cancer screenings. After adjusting for age, gender, race, salary, employment status, and household size, cancer survivors were more likely to undergo colorectal cancer screening (OR: 3.59, 95% CI: 2.10–6.15) and breast cancer screening (OR: 2.13, 95% CI: 1.30–3.84) than patients without a cancer history. This difference was not seen for cervical cancer screening (OR: 0.99, 95% CI: .62–1.58).

Conclusions

Uninsured cancer survivors frequenting free clinics represent a unique population that is underrepresented in the medical literature. Our results suggest that uninsured survivors use screening services at higher rates when compared to uninsured patients without a reported cancer diagnosis. However, these rates are suboptimal when compared to national screening rates of insured cancer survivors.

HCV testing: Order and completion rates among baby boomers obtaining care from seven health systems in Florida, 2015-2017

Many U.S. residents infected with hepatitis C virus (HCV) are baby boomers (born 1945-1965), who remain undiagnosed. Past CDC and USPSTF guidelines recommended one-time HCV testing for all baby boomers, with newer guidelines recommending universal screening for all adults. This retrospective cohort study examined electronic medical records for patient visits from 2015 to 2017 within the OneFlorida Data Trust and University of South Florida Health system. We assessed percentages of HCV tests ordered and completed across four age groups (those born before 1945, 1945-1965, 1966-1985, and after 1985). In 2019, we used logistic regression to examine factors associated with HCV test ordering and completion among baby boomers, including age, race, sex, number of primary care visits, HIV status, hepatitis diagnosis, and liver cancer history. All age groups had low rates of HCV test orders. 4.4% of baby boomers had a test ordered in 2015, and 6.7% in 2016. Of those, 94.5% and 89.7% completed testing, respectively. All other races/ethnicities had lower likelihood of testing completion than Whites (Blacks (aOR 0.82, 95%, CI 0.75-0.91); Asians (0.69, 0.52-0.92); Hispanics (0.29, 0.26-0.32)), although test orders were higher for Asians (1.48, 1.37-1.61) and Blacks (1.78, 1.73-1.82). Tests ordered (11.42, 10.94-11.92) and completed (2.25, 1.94-2.60) were more likely among those with hepatitis history. Test orders were more likely for HIV-positive patients (3.68, 3.45-3.93), but completion was less likely (0.67, 0.57-0.78). Interventions are needed to increase testing rates so that HCV infections are treated early, mitigating HCV-related morbidity and mortality, especially related to liver cancer.

Measurement of Pharmacist-Physician Collaborative Care on Therapeutic Inertia in Patients With Type 2 Diabetes

BACKGROUND

Team-based care practice models have been shown to improve diabetes-related therapeutic inertia, yet the method and type of antidiabetic treatment intensification (TI) leading to improvements in glycemic control are not well understood.

OBJECTIVE

To evaluate time to TI in a pharmacist-physician practice model (PPM) as compared with usual medical care (UMC), explore the method and type of antidiabetic TI, and evaluate achievement of hemoglobin A_1C (A1C) goal among each cohort.

METHODS

This was a retrospective cohort study conducted between January 1, 2017, and December 31, 2018. Median time to TI was calculated and compared between patients in the PPM and UMC groups using the log rank test. Descriptive statistics were used to evaluate the method and type of TI and A1C goal achievement.

RESULTS

A total of 56 patients were included. The median (interquartile range) time to antidiabetic TI among the PPM cohort was 37.5 days (8, 216.5), as compared with 142 days (16, 465) in the UMC cohort (P = 0.19). At 1 year post-index date, 25% of patients in the PPM cohort reached their A1C goal compared with 18.8% of patients in the UMC cohort. This effect was maintained in the subgroup (n = 49) of patients receiving TI (23.1% vs 17.8%).

CONCLUSION AND RELEVANCE

A shorter time to TI and improvement in A1C goal achievement was observed with pharmacist-physician care compared with UMC. These findings suggest that pharmacist-physician care may be one of several interventions necessary to overcome therapeutic inertia in diabetes care.

Addressing Breast Cancer Screening Disparities Among Uninsured and Insured Patients: A Student-Run Free Clinic Initiative

Mammography rates among the uninsured are less than half of those among insured patients as reported by American Cancer Society (Breast cancer facts & figures 2017-2018, American Cancer Society, Inc., Atlanta, 2017). This may stem from high costs of and limited access to a usual place for health care, which may portend delayed breast cancer diagnoses and poorer outcomes among uninsured women. Student-run free clinics provide opportunities for uninsured patients to establish a medical home, thereby increasing access to preventative health care. The purpose of this study is to determine the rates of breast cancer screening at a student-run free clinic and compare them to national averages. A retrospective chart review was conducted using patients of BRIDGE Healthcare Clinic who were women ages 40-75 years between January 2012 and March 2018. Medical records were reviewed for demographics, date of mammogram, and screening results. A total of 194 women 40 years or older were included in the review. Overall, of the 157 women who were 45 years or older at their most recent visit, 75.5% were up-to-date according to guidelines set forth by the American Cancer Society. These values are well above the reported national rates in insured and uninsured women (21%, 53%, respectively) as reported by American Cancer Society (Breast cancer facts & figures 2017-2018, American Cancer Society, Inc., Atlanta, 2017). Of the patients who obtained screening mammograms, 84.5% utilized BRIDGE Healthcare Clinic's program. Volunteer providers are often the sole source of health care for a substantial portion of uninsured patients, who may have unmet preventative health needs. As such, the findings of this study suggest that student-run free clinics play an important role in increasing uninsured patients' access to mammograms. The breast cancer screening program described herein may serve as an example for implementation by other student-run free clinics.

Development of Malignancy-Risk Gene Signature Assay for Predicting Breast Cancer Risk

BACKGROUND

Breast cancer (BC) risk assessment models are statistical estimates based on patient characteristics. We developed a gene expression assay to assess BC risk using benign breast biopsy tissue.

METHODS

A NanoString-based malignancy risk (MR) gene signature was validated for formalin-fixed paraffin-embedded (FFPE) tissue. It was applied to FFPE benign and BC specimens obtained from women who underwent breast biopsy, some of whom developed BC during follow-up to evaluate diagnostic capability of the MR signature. BC risk was calculated with MR score, Gail risk score, and both tests combined. Logistic regression and receiver operating characteristic curves were used to evaluate these 3 models.

RESULTS

NanoString MR demonstrated concordance between fresh frozen and FFPE malignant samples (r = 0.99). Within the validation set, 563 women with benign breast biopsies from 2007 to 2011 were identified and followed for at least 5 y; 50 women developed BC (affected) within 5 y from biopsy. Three groups were compared: benign tissue from unaffected and affected patients and malignant tissue from affected patients. Kruskal-Wallis test suggested difference between the groups (P = 0.09) with trend in higher predicted MR score for benign tissue from affected patients before development of BC. Neither the MR signature nor Gail risk score were statistically different between affected and unaffected patients; combining both tests demonstrated best predictive value (AUC = 0.71).

CONCLUSIONS

FFPE gene expression assays can be used to develop a predictive test for BC. Further investigation of the combined MR signature and Gail Model is required. Our assay was limited by scant cellularity of archived breast tissue.

Examining the Durability of Colorectal Cancer Screening Awareness and Health Beliefs Among Medically Underserved Patients: Baseline to 12 months Post-Intervention

The current study examines changes in awareness and health beliefs from baseline to 12 months post-intervention following receipt of one of two colorectal cancer (CRC) educational interventions that aimed to promote CRC screening among a racially and ethnically diverse and medically underserved population. Participants (N = 270) were enrolled in a randomized controlled trial to increase CRC screening and completed both baseline and 12-month follow-up assessments. Participants were aged 50-75, at average CRC risk, not up-to-date with CRC screening guidelines, and receiving care at one of three community-based clinics. Participants were randomized to receive either a targeted, low-literacy intervention informed by the Preventive Health Model [PHM] (photonovella and DVD plus fecal immunochemical test [FIT]) or a non-targeted intervention (standard educational brochure plus FIT). Changes in CRC awareness and health beliefs from baseline to 12 months were examined both within and between intervention groups using Student's t tests. Participants in both intervention conditions demonstrated an increase in CRC awareness, PHM social influence, and trust in the healthcare system (all p's < .0001), with no significant between-group differences. Among those receiving the targeted intervention, there also was an increase in PHM salience (p < .05). Among individuals receiving the non-targeted intervention, there was an increase in PHM response efficacy (p < .01) and PHM self-efficacy (p < .0001). Both CRC screening interventions promoted positive changes in awareness and several health beliefs from baseline to 12 months, suggesting important benefits of CRC education. Regardless of whether education was targeted or non-targeted, providing CRC screening education successfully promoted durable changes in awareness and health beliefs.

BPI19-018: Cancer Screening Rates and Adherence of Uninsured Cancer Patients in Free Clinics

Background: There are limited studies documenting the prevalence of malignancies and the cancer screening practices of the uninsured population. Cancer survivors require continued cancer surveillance and screening for recurrence and second primaries. However, screening may be suboptimal among the uninsured. Our objective was to identify and document the screening rates and adherence to ACS guidelines in our local uninsured community. Methods: Demographic data, cancer history and associated cancer screening measures were extracted from electronic medical records of patients managed in 8 free clinics between January 2016 and December 2017 in the Tampa Bay Area. Frequencies, proportions, and Pearson correlation coefficients were used to describe the population and statistically significant relationships. Using the ACS cancer screening recommendations, the charts were reviewed for appropriate cancer screening. Results: From manual chart review, 6,958 charts were reviewed and 201 (2.89%) patients had a diagnosis of cancer. The average age was 55.58 years and 134 (66.67%) were women. Most common malignancies included breast cancer (49, 24.38%), prostate (18, 8.96%), colorectal (13, 6.47%), leukemia/lymphoma (11, 5.47%), cervical (10, 4.98%), melanoma (10, 4.98%), ovarian (9, 4.48%), thyroid (9, 4.48%), renal (6, 2.99%), bladder (5, 2.49%), and uterine (5, 2.49%). Of the 201 patients diagnosed with cancer, 104 (51.74%) met the guidelines for a screening mammogram; however, only 49 (47.12%) had this completed. 115 (57.21%) met the guidelines for a screening Papanicolaou smear; 28 (24.35%) had it completed. 145 (72.14%) met the guidelines for a screening colonoscopy; 23 (15.86%) had it completed. 39 (19.4%) met the guidelines for prostate screening; 3 (7.69%) had it completed. Of the 201 patients, 14 (6.97%) reported a greater than 30 pack smoking history but no patients were screened with a low-dose CT of the thorax. Of the 10 patients with melanoma, 3 (30%) mentioned having routine skin exams. Conclusions: The uninsured population have many barriers to obtaining health care and appropriate screening for malignancies. This retrospective chart review highlights the need for easier access to screening. Increasing screening rates in the uninsured population will decrease cancer mortality as well as being cost effective to the community. It is important for free clinic providers to emphasize guideline-directed cancer screening at every visit.

Comorbidities, risk, and socioeconomic factors of uninsured cancer survivors

Cancer patients can be well-connected to resources during treatment but become lost to follow-up and subsequently may receive treatment in free clinics for chronic morbidities. Few studies have examined outcomes for uninsured patients with cancer histories in free clinics, but research examining socioeconomic determinants emphasizes poor cancer outcomes for patients with lower socioeconomic statuses (SES).Demographic data and chronic disease measures were extracted from medical charts of patients treated in 8 free clinics in 2016 in Tampa Bay. Descriptive statistics and Pearson correlation coefficients were used to demonstrate relationships between socioeconomic factors, cancer diagnoses, and comorbidities. Charlson Comorbidity Index (CCI) was used to assess mortality risk and severity of disease burden.The histories of 4804 uninsured patients were evaluated, identifying 86 (1.7%) as having had cancer. They were predominantly female (65.1%) and significantly older than those without cancer histories. Average duration from initial diagnosis was approximately 8.53 years (standard deviation [SD] 7.55). Overall, cancer patients had higher CCI scores (3.04 [1.928 SD] versus 0.90 [1.209 SD]; P <.001); thus reflecting more weighted comorbidities than patients without cancer (P <.001). Other factors of chronic disease including obesity and substance abuse correlated with cancer history.Among uninsured patients, those with cancer histories had greater mortality risk by CCI than those without. Chronic conditions such as diabetes, cerebrovascular disease, and chronic pulmonary disease existed in patients with cancer histories, affecting their mortality risk. Uninsured patients with a history of cancer are in greater need for chronic disease management and prevention.

Health Literacy among Medically Underserved: The Role of Demographic Factors, Social Influence, and Religious Beliefs

The current study examined the sociodemographic and psychosocial variables that predicted being at risk for low health literacy among a population of racially and ethnically diverse patients accessing primary care services at community-based clinics. Participants (N = 416) were aged 50-75 years, currently not up-to-date with colorectal cancer (CRC) screening, at average CRC risk, and enrolled in a randomized controlled trial (RCT) aimed at promoting CRC screening. Participants completed a baseline interview that assessed health literacy as measured by Rapid Estimate of Adult Literacy in Medicine-Revised, sociodemographic factors, and psychosocial variables (e.g., health beliefs) prior to randomization and receipt of an intervention. Thirty-six percent of the participants were found to be at risk for low health literacy. Sociodemographic and psychosocial variables were assessed as predictors of being at risk for low health literacy using logistic regression. In the final model, predictors were male gender, being from a racial/ethnic minority group, being unable to work, having higher social influence scores, and having higher religious belief scores. These findings suggest several patient characteristics that may be associated with low health literacy, and highlight the importance of supporting all patients through simplified and clear communications and information to improve understanding of CRC screening information.

Abstract A63: Changes in health beliefs among medically-underserved patients enrolled in a community-based randomized controlled trial to promote colorectal cancer screening

Marked health disparities exist in colorectal cancer (CRC) screening, incidence, and mortality among medically-underserved communities. Literature suggests certain health beliefs (e.g., perceived risk) may be related to screening behavior. This study examined changes in CRC health beliefs following receipt of one of two educational interventions aimed at promoting CRC screening uptake among a medically-underserved population. We compared changes in CRC health beliefs at baseline and 12 months later both within and between the two intervention groups.

Enrolled participants were aged 50-75, at average CRC risk, not up-to-date with CRC screening guidelines, enrolled in a randomized controlled trial to increase CRC screening that was conducted at community clinics in the Tampa Bay area, and completed both the baseline and 12 month follow-up assessments. Participants were randomized to receive either a culturally-targeted photonovella and DVD plus fecal immunochemical test (FIT) intervention (titled Colorectal Cancer Awareness, Research, Education and Screening, or CARES, intervention group condition) or a Centers for Disease Control and Prevention (CDC) standard educational brochure plus FIT intervention (comparison group condition). At both time points, participants completed a questionnaire that included multiple health-related beliefs including Preventive Health Model (PHM) constructs (i.e., perceived susceptibility, perceived salience, self-efficacy, response efficacy, cancer worry, social influence, and religious beliefs), CRC awareness, decisional conflict regarding CRC screening, cancer fatalism, trust in the healthcare system, and perceived discrimination. Changes in health belief scores and group differences in change were examined using Student's t-tests.

The majority of participants (n=270) were: female (58%); white (67%) or black (26%); insured (59%) including county health insurance; had a household income &lt;$10,000 (65%); and had a high school education (35%) or more than high school education (41%). In both intervention conditions, there was an increase in CRC awareness, PHM social influence, and trust in the healthcare system (all p's&lt;.0001). In the CARES intervention group, there also was an increase in PHM salience (p&lt;.05). Among individuals in the comparison group, there was an increase in PHM response efficacy (p&lt;.01) and PHM self-efficacy (p&lt;.0001). There were no significant between-group differences on any of the health belief change scores.

Both CRC screening interventions promoted positive changes in multiple health beliefs from baseline to 12 months which suggests clear benefits of educational interventions. The interventions had common positive effects (i.e., CRC awareness, PHM social influence, and trust in the healthcare system), but also unique effects on PHM salience (CARES condition) and PHM self-efficacy and PHM response efficacy (comparison condition). However, between-group intervention comparisons were not significant suggesting that both educational interventions are beneficial. Given that individuals in both intervention groups were provided with access to CRC screening via FIT kit, future analyses will examine whether changes in health beliefs were associated with higher CRC screening uptake.

Citation Format: Shannon M. Christy, Steven K. Sutton, Enmanuel Chavarria, Stacy N. Davis, Rania Abdulla, Gwendolyn P. Quinn, Susan T. Vadaparampil, Chitra Ravindra, Ida Schultz, Richard Roetzheim, David Shibata, Cathy D. Meade, Clement K. Gwede. Changes in health beliefs among medically-underserved patients enrolled in a community-based randomized controlled trial to promote colorectal cancer screening. [abstract]. In: Proceedings of the Ninth AACR Conference on the Science of Cancer Health Disparities in Racial/Ethnic Minorities and the Medically Underserved; 2016 Sep 25-28; Fort Lauderdale, FL. Philadelphia (PA): AACR; Cancer Epidemiol Biomarkers Prev 2017;26(2 Suppl):Abstract nr A63.

Affecting African American men's prostate cancer screening decision-making through a mobile tablet-mediated intervention

African American men experience a 60% higher incidence of prostate cancer and are more than twice as likely to die from it than White men. Evidence is insufficient to conclude that definitively screening for prostate cancer reduces the likelihood of morbidity or death. Patients are encouraged to discuss screening alternatives with health care providers for informed decision-making (IDM). The extent of IDM in clinical or community setting is not known. This study uses data from a community-based, computer-mediated, IDM intervention that targeted 152 African American aged 40 to 70. Pretest-posttest differences in means for prostate cancer knowledge, screening decisional conflict, and screening decisional self-efficacy were examined by two-tailed t-tests. Overall, the intervention significantly improved respondents' prostate cancer knowledge (p&lt;.0001), significantly improved decisional self-efficacy (p&lt;.0001) and significantly reduced decisional conflict (p&lt;.0001). Specifically, the intervention significantly promoted IDM among men who reported more education, being married, having financial resources, and younger age.

Establishing the infrastructure to comprehensively address cancer disparities: a model for transdisciplinary approaches

The Center for Equal Health (CEH), a transdisciplinary Center of Excellence, was established to investigate cancer disparities comprehensively and achieve health equity through research, education, training, and community outreach. This paper discusses challenges faced by CEH, strategies employed to foster collaborations, lessons learned, and future considerations for establishing similar initiatives.

Effect of patient navigation on time to diagnostic resolution among patients with colorectal cancer-related abnormalities

The objective of this study is to evaluate whether a patient navigation (PN) program is effective in reducing delay in diagnostic resolution among medically underserved patients with colorectal cancer (CRC)-related abnormalities in Tampa Bay, Florida. This study involved ten primary care clinics randomized either to receive navigation or to serve as controls (five clinics per arm). Each clinic identified all subjects with CRC-related abnormalities in the year prior to the clinic beginning participation in the Moffitt Patient Navigator Research Program. Patients with CRC-related abnormalities were navigated from the time of a colorectal abnormality to diagnostic resolution. Control patients received usual care, and outcome information was obtained from medical record abstraction. Using a frailty Cox proportional hazard model, we examined the length of time between colorectal abnormality and definitive diagnosis. One hundred ninety-three patients were eligible for the study because of a CRC-related abnormality (75 navigated and 118 controls). Analysis of PN effect by two time periods of resolution (0-4 and >4 months) showed a lagged effect of PN. The adjusted time-varying PN effect on diagnostic resolution compared to the controls was marginally significant (adjusted hazard ratio [aHR] = 1.15, 95% confidence interval = 1.02-1.29) after controlling for insurance status. The predicted aHR at 4 months was 1.2, but showed no significant effect until 12 months. For patients having an abnormal symptom of CRC, PN appeared to have a positive effect over time and sped diagnostic resolution after 4 months. However, the small sample size limits drawing a definitive conclusion regarding the positive PN effect.

Patient navigation and time to diagnostic resolution: results for a cluster randomized trial evaluating the efficacy of patient navigation among patients with breast cancer screening abnormalities, Tampa, FL

Objectives

The objective of this study was to evaluate a patient navigation (PN) program that attempts to reduce the time between a breast cancer screening abnormality and definitive diagnosis among medically underserved populations of Tampa Bay, Florida.

Methods

The Moffitt Patient Navigation Research Program conducted a cluster randomized design with 10 primary care clinics. Patients were navigated from time of a breast screening abnormality to diagnostic resolution. This paper examined the length of time between breast abnormality and definitive diagnosis, using a shared frailty Cox proportional hazard model to assess PN program effect.

Results

1,039 patients were eligible for the study because of an abnormal breast cancer screening/clinical abnormality (494 navigated; 545 control). Analysis of PN effect by two time periods of resolution (0-3 months and > 3 months) showed a lagged effect of PN. For patients resolving in the first three months, the adjusted Hazard Ratio (aHR) was 0.85 (95% Confidence Interval [CI]: 0.64-1.13) suggesting that PN had no effect on resolution time during this period. Beyond three months, however, navigated patients resolved more quickly to diagnostic resolution compared with the control group (aHR 2.8, 95%CI: 1.30-6.13). The predicted aHR at 3 months was 1.2, which was not statistically significant, while PN had a significant positive effect beyond 4.7 months.

Conclusions

PN programs may increase the timeliness of diagnostic resolution for patients with a breast cancer-related abnormality. PN did not speed diagnostic resolution during the initial three months of follow up but started to reduce time to diagnostic resolution after three months and showed a significant effect after 4.7 months.

Trial Registration

ClinicalTrials.gov NCT00375024

Abstract 1367: Item response theory analysis of the patient satisfaction with cancer-related care: psychometric validation in a multicultural sample of 1,296 participants

BACKGROUND: Patient satisfaction (PS) is an important outcome measure of quality of cancer-related care. PS was one of the four core study outcomes of the National Cancer Institute and American Cancer Society funded $25 million multicenter Patient Navigation Research Program (PNRP) to reduce disparities in cancer care. A Patient Satisfaction with Cancer Care (PSCC) measure was developed and validated for the PNRP using classical test theory and principal components analysis (PCA).

OBJECTIVE: To calibrate items of the PSCC to facilitate the development of a computerized adaptive testing (CAT) system, which can be used to tailor the PSCC to patients’ satisfaction level based on properties of the items.

METHODS: The PCA revealed a unidimensional PSCC measure. Thus, we applied unidimensional item response theory (IRT) models to the 18-item PSCC data from 1,296 participants (73% female; age 18 to 86 years). We fitted two IRT models to the data: An unconstrained graded response model (GRM) and a constrained GRM (i.e., Rasch Model) where all discrimination parameters across items were fixed to be equal. We obtained model fit indices (log-likelihood, AIC & BIC) and performed model comparison through likelihood ratio (LR) test between the unconstrained GRM and the Rasch model. We obtained item and latent trait (i.e., patient satisfaction) parameter estimates, category characteristic curves, operating characteristic curves, and test information curves for the better fitting model.

RESULTS: The unconstrained GRM fitted the data significantly better (LR = 828, df = 17, p &lt; 0.001). Item parameter estimates showed strong items discriminating power (α = 0.94 to 2.18). Standard errors (SE) of the item parameter estimates were also small (i.e., mostly around 0.1 for the threshold parameters, and between 0.1 to 0.2 for the discrimination parameters), confirming the precision of the item parameter estimates obtained.

CONCLUSIONS: The PSCC is suitable to be delivered through a CAT system where patients will receive tailored optimally selected items to measure their satisfaction levels, and scores will be equated across different subsets of items (i.e., test forms). An IRT-based PSCC CAT system will provide key patient reported outcome data to help improve patient-centered cancer care and satisfaction for medically underserved populations.

Citation Format: Pascal Jean-Pierre, Ying Cheng, Steven Patierno, Peter Raich, Richard Roetzheim, Steven Rosen, Donald Dudley, Karen Freund, Victoria Warren-Mears, Electra Paskett, Kevin Fiscella. Item response theory analysis of the patient satisfaction with cancer-related care: psychometric validation in a multicultural sample of 1,296 participants. [abstract]. In: Proceedings of the 104th Annual Meeting of the American Association for Cancer Research; 2013 Apr 6-10; Washington, DC. Philadelphia (PA): AACR; Cancer Res 2013;73(8 Suppl):Abstract nr 1367. doi:10.1158/1538-7445.AM2013-1367

Establishing the infrastructure to conduct comparative effectiveness research toward the elimination of disparities: a community-based participatory research framework

In Tampa, Florida, researchers have partnered with community- and faith-based organizations to create the Comparative Effectiveness Research for Eliminating Disparities (CERED) infrastructure. Grounded in community-based participatory research, CERED acts on multiple levels of society to enhance informed decision making (IDM) of prostate cancer screening among Black men. CERED investigators combined both comparative effectiveness research and community-based participatory research to design a trial examining the effectiveness of community health workers and a digitally enhanced patient decision aid to support IDM in community settings as compared with "usual care" for prostate cancer screening. In addition, CERED researchers synthesized evidence through the development of systematic literature reviews analyzing the effectiveness of community health workers in changing knowledge, attitudes and behaviors of African American adults toward cancer prevention and education. An additional systematic review analyzed chemoprevention agents for prostate cancer as an emerging technique. Both of these reviews, and the comparative effectiveness trial supporting the IDM process, add to CERED's goal of providing evidence to eliminate cancer health disparities.

Predictors of Tetanus–Diphtheria– Acellular Pertussis Vaccination Among Adults Receiving Tetanus Vaccine in the United States

Background. The incidence of pertussis in the United States has been increasing. Adult vaccination is important to reduce disease burden and prevent transmission to infants at high risk of complications. The tetanus–diphtheria–acellular pertussis (Tdap) vaccine has been available in the United States since 2005 and is indicated as a one-time replacement for the routine tetanus–diphtheria (Td) booster. However, among adults receiving tetanus vaccination, only about half receive Tdap. Purpose. To identify predictors of adult Tdap vaccination among individuals who receive tetanus vaccine. Methods. National Health Interview Survey data from 2008 were analyzed in 2011. Respondents were 18 to 64 years old, received tetanus vaccination during 2005-2008, and were aware if it contained pertussis. Predictors of Tdap vaccination were identified with multivariate logistic regression using procedures for complex survey methods. Results. Overall, 51.1% of respondents received Tdap. Vaccination was less likely for those 50 to 64 years old compared with those 18 to 24 years old (odds ratio [OR] = 0.61, 95% confidence interval [CI] = 0.38-0.96). Some college education was associated with higher odds of vaccination compared with lower education levels (OR = 1.55, 95% CI = 1.16-2.07). Having 2 to 3 office visits (OR = 2.01, 95% CI = 1.32-3.06) or 4 to 9 office visits (OR = 1.60, 95% CI = 1.06-2.42) in the previous year increased the odds of vaccination compared with no visits. Individuals with functional limitation due to illness had lower odds compared with no limitation (OR = 0.70, 95% CI = 0.54-0.91). Conclusions. In 2008, 51.1% of adult Td vaccinations included pertussis, suggesting continued efforts to remove barriers are needed. Interventions should target older, functionally impaired, and educationally disadvantaged populations.

Abstract B91: Strategies toward improving the uptake of colorectal cancer screening among underserved communities: Providers’ perspectives

Purpose: Disparities in colorectal cancer screening (CRCS) are partially rooted in reduced access to health care and screening tests. One strategy under investigation within the Tampa Bay Community Cancer Network Community Network Program Center is the promotion of the now widely available and evidence-based immunochemical fecal occult blood test (i-FOBT or FIT) in community-based federally qualified health centers (FQHC) using easy-to-understand video and photo-novella materials customized for this setting. The purposes of this qualitative study were to identify key issues from the perspectives of providers regarding common barriers that patients face regarding the i-FOBT screening test, identify successful strategies to prime patients to use the i-FOBT test, and explore the best timing sequence of patient preparatory education about CRCS.

Methods: Two focus groups and three individual interviews were conducted among 17 community health care providers working with medically underserved populations in FQHCs in Hillsborough County, FL. A community-based participatory research (CBPR) methodology was used to develop the focus group guide and recruitment materials. Eighty two percent were either family medicine physicians, physician assistants or nurse practitioners. Other job titles included registered nurse (n=1) and certified nurse assistant/medical assistant (n=2). Using a semi-structured interview guide, providers were asked to discuss barriers patients may face regarding CRCS, issues related to educating patients in clinics about CRCS, and importance of communication in motivating patients to consider screening. Discussions were audio-taped and transcribed verbatim and lasted between 30–60 minutes. Transcriptions were independently hand-coded using priori codes from the guides and emergent themes were identified using a crystallized-immersion methodology, across multiple raters.

Results: Results showed the majority of providers agreed their patients could benefit from more health education prior to provider discussion about CRCS. Providers described the main concerns experienced by their patients as: lack of insurance, lack of transportation, fear and embarrassment associated with colonoscopy, lack of access to screening and the need for more resources for learning about CRC and CRC related services. The most compelling concern expressed among providers was that patients often feared screening results, and perceived they would not have access to further follow-up colonoscopy if i-FOBT was abnormal or resources to treat CRC. Most providers wanted to see more cultural and literacy relevant CRC educational materials in their clinics. In addition, when patients are informed about their risks, the importance of early detection, and are given examples of people to whom they can relate, providers felt that preparatory education could increase the likelihood of following through with recommended screening with i-FOBT as an initial strategy.

Conclusions: Findings from health care providers support the need for priming education to address patients’ concerns about CRC screenings. Results also reinforce the development of educational materials that address test-specific fears and how to access available resources. Timing of CRCS education of patients in clinics is crucial. Providers’ perspectives are an integral component of designing relevant educational materials and interventions.

Citation Information: Cancer Epidemiol Biomarkers Prev 2011;20(10 Suppl):B91.

Abstract A9: Patients’ perspectives on immunochemical fecal occult blood test (I-FOBT or FIT): Not your father's FOBT

Purpose: A promising strategy to increase colorectal cancer (CRC) screening includes the use of new generation high sensitivity-high specificity immunochemical fecal occult blood test (I-FOBT or FIT) among patients receiving primary care in Federally Qualified Health Centers (FQHC). This approach was recognized by the Tampa Bay Community Cancer Network (TBCCN) Community Network Program Center (CNPC) as a highly feasible method for impacting cancer health disparities in our community. Despite physician recommendations to increase screening uptake, finding effective ways to increase patients’ awareness about different types of CRC screening (CRCS) is needed. This study reports qualitative findings from focus groups with patients in FQHCs to inform the development of a low literacy DVD and photonovella booklet to prepare patients for provider discussions about CRCS, particularly I-FOBT use.

Methods: Six focus groups were conducted with men and women, of diverse background (ages 50–75 years) with no diagnosis of CRC. In collaboration with our community partners who identified a need to increase CRCS and using community-based participatory research (CBPR) methodology to develop a focus group guide and recruitment materials, participants were recruited from partnering FQHCs in Hillsborough County, FL. The focus group guide assessed patients’ knowledge and perceptions about CRC and screening, particularly I-FOBT and colonoscopy, as well as participants’ views about in clinic CRCS preparatory education process and factors that impede CRCS uptake. All focus groups were audio taped, transcribed verbatim and reviewed by two independent coders. Thematic coding, using a crystallized-immersion framework was conducted. A combination of hand-coding and Atlas TI software were employed using content from the patient focus group guide as priori codes.

Results: Thirty-nine patients participated in focus groups to date (51% male; 59% black; 36% white; 5% Hispanic/Latino; mean age = 56.18 years). Seventeen reported being up-to-date on CRCS per recommendations and 22 were not current. Consistent with previous studies, we found poor knowledge and awareness about CRC risks and different screening modalities. Commonly reported barriers included: 1) no doctor recommendation; 2) cost; 3) fear of the test or abnormal findings; and 4) a lack of symptoms. While all participants had heard of colonoscopy and traditional FOBT, very few were aware of I-FOBT. Concerns about colonoscopy included a dislike of the test prep and affordability. Most men reported feelings of embarrassment, personal invasion, and threatened masculinity regarding the colonoscopy procedure itself. Upon learning about I-FOBT the majority felt the test seemed to be simple, easy to do, and private. Most participants who had prior FOBT screening reported use of the older 3-card home test or office-based guaiac test. Reported limitations to the older version of FOBT included diet restrictions, dislike of “handling” one's own feces during sample collection and the complexity of multiple test applications. Doctor recommendation was the main reason participants completed CRCS tests.

Conclusions: Our findings suggest patients’ overall receptivity to I-FOBT, and provide a basis for developing educational content for an intervention that addresses test specific barriers, and promotes the more patient-friendly IFOBT. Results also show support for a preparatory education intervention that will educate patients in clinic before their provider visit about the need for CRCS. Such preparatory materials are expected to enhance patients’ awareness about CRCS, facilitate patient-provider communication, and contribute to the overall uptake of CRCS.

Citation Information: Cancer Epidemiol Biomarkers Prev 2011;20(10 Suppl):A9.

Sun protection at elementary schools: a cluster randomized trial

BACKGROUND

Elementary schools represent both a source of childhood sun exposure and a setting for educational interventions.

METHODS

Sun Protection of Florida's Children was a cluster randomized trial promoting hat use at (primary outcome) and outside of schools among fourth-grade students during August 8, 2006, through May 22, 2007. Twenty-two schools were randomly assigned to the intervention (1115 students) or control group (1376 students). Intervention schools received classroom sessions targeting sun protection attitudes and social norms. Each student attending an intervention school received two free wide-brimmed hats. Hat use at school was measured by direct observation and hat use outside of school was measured by self-report. A subgroup of 378 students (178 in the intervention group and 200 in the control group) underwent serial measurements of skin pigmentation to explore potential physiological effects of the intervention. Generalized linear mixed models were used to evaluate the intervention effect by accounting for the cluster randomized trial design. All P values were two-sided and were claimed as statistically significant at a level of .05.

RESULTS

The percentage of students observed wearing hats at control schools remained essentially unchanged during the school year (baseline = 2%, fall = 0%, and spring = 1%) but increased statistically significantly at intervention schools (baseline = 2%, fall = 30%, and spring = 41%) (P < .001 for intervention effect comparing the change in rate of hat use over time at intervention vs control schools). Self-reported use of hats outside of school did not change statistically significantly during the study (control: baseline = 14%, fall = 14%, and spring = 11%; intervention: baseline = 24%, fall = 24%, and spring = 23%) nor did measures of skin pigmentation.

CONCLUSIONS

The intervention increased use of hats among fourth-grade students at school but had no effect on self-reported wide-brimmed hat use outside of school or on measures of skin pigmentation.

Analysis of group randomized trials with multiple binary endpoints and small number of groups

The group randomized trial (GRT) is a common study design to assess the effect of an intervention program aimed at health promotion or disease prevention. In GRTs, groups rather than individuals are randomized into intervention or control arms. Then, responses are measured on individuals within those groups. A number of analytical problems beset GRT designs. The major problem emerges from the likely positive intraclass correlation among observations of individuals within a group. This paper provides an overview of the analytical method for GRT data and applies this method to a randomized cancer prevention trial, where multiple binary primary endpoints were obtained. We develop an index of extra variability to investigate group-specific effects on response. The purpose of the index is to understand the influence of individual groups on evaluating the intervention effect, especially, when a GRT study involves a small number of groups. The multiple endpoints from the GRT design are analyzed using a generalized linear mixed model and the stepdown Bonferroni method of Holm.

Compliance with Recommendations for Lipid Management among Patients with Type 2 Diabetes in an Academic Family Practice

BACKGROUND

Lipid abnormalities are twice as common in patients with type 2 diabetes, and this contributes substantially to their increased risk of cardiac disease. The American Diabetic Association (ADA) has defined treatment goals for high-density lipoprotein (HDL) cholesterol (>45 mg/dL), triglyceride (<200 mg/dL), and low-density lipoprotein (LDL) cholesterol (<100 mg/dL). It is unknown, however, how frequently patients with diabetes managed in primary care settings are able to attain these treatment goals.

METHODS

We randomly selected 239 patients with type 2 diabetes and conducted a chart review to determine whether patients had attained ADA lipid goals. We examined clinical predictors of goal attainment using logistic regression.

RESULTS

The number and percentage of patients who had attained ADA lipid goals was as follows: HDL cholesterol, 87 of 207 (42.0%); LDL cholesterol, 93 of 208 (47.0%); and triglyceride, 142 of 206 (70.0%). Only 30 of 206 (14.6%) patients had achieved all 3 lipid goals. Three groups of patients with diabetes had greater odds of achieving the LDL treatment goal: men, patients taking a lipid-lowering drug, and patients with hypertension. Patients with diabetes had greater odds of achieving the HDL goal if they were female, were black, or if they had lower values for body mass index and triglyceride. The odds of achieving the triglyceride goal were greater for men, for patients having Medicare insurance supplemented by private insurance, and for those with increasing values of HDL.

CONCLUSION

We found that the majority of patients with diabetes failed to attain lipid goals set forth by the American Diabetes Association. Further study is needed in larger populations to confirm these findings, and if confirmed, to determine the reasons that patients fail to achieve lipid goals.

Effects of physician supply on melanoma incidence and mortality in Florida

BACKGROUND

Increasing supplies of dermatologists and family physicians have been associated with earlier detection of malignant melanoma. We investigated whether physician supply was similarly related to incidence and mortality rates of malignant melanoma.

METHODS

Using the state tumor registry, we determined melanoma incidence and mortality rates for the years 1993 to 1995 for each Florida county. We measured physician supply for each Florida county using data from the 1994 American Medical Association Physician Masterfile. Multiple linear regression analysis was used to determine relationships between physician supply and melanoma incidence and mortality rates, controlling for other county-level characteristics.

RESULTS

Among male patients, an increasing supply of family physicians was associated with higher melanoma incidence and lower melanoma mortality. Increasing supplies of dermatologists were associated with lower overall melanoma mortality rates, and increasing supplies of general internists were associated with higher overall melanoma mortality.

CONCLUSION

We found that melanoma incidence and mortality rates varied substantially among Florida's 67 counties, and that differences in physician supply explained some of this variability. Further study is needed to confirm these findings and to elucidate possible mechanisms that would account for these associations.

The use and outcomes of outpatient mastectomy in Florida

BACKGROUND

To identify patient characteristics associated with outpatient mastectomies and their outcomes.

METHODS

Patients diagnosed with breast cancer and treated with mastectomies in Florida in 1994 were identified from state discharge abstracts and the state tumor registry. The relationship between clinical/demographic characteristics and the odds of having an outpatient mastectomy was identified using multiple logistic regression. Outcomes were assessed by calculating the risk of being rehospitalized within 30 days of discharge.

RESULTS

Twenty percent of mastectomies were performed on an outpatient basis. Outpatient mastectomies were more likely to be performed on women who were older, who lived in higher income communities, or who were uninsured. Health insurance type was not associated with having an outpatient mastectomy. Women undergoing outpatient mastectomy were more likely to be readmitted within 30 days of discharge; however, the excess risk was very small (0.7%).

CONCLUSIONS

The risks from outpatient mastectomy are small. Ongoing monitoring of outcomes and assessment of patient satisfaction are needed.

University students' knowledge and awareness of HPV

BACKGROUND

The purpose of this study was to evaluate the knowledge, attitudes, and behaviors of university students regarding the human papillomavirus (HPV).

METHODS

A random sample of 500 university students was mailed a self-administered questionnaire that elicited their knowledge and awareness about HPV and compared their knowledge and attitudes with those of other sexually transmitted diseases (STDs). Among the 480 deliverable addresses, 289 students responded (response rate 60%).

RESULTS

Only 37% of respondents had ever heard of HPV, and the median score on a 13-item knowledge scale was only 3. Of seven STDs assessed, respondents indicated they knew the least about HPV and perceived that this STD has received the least educational effort. In multivariate analyses, predictors of lower knowledge and awareness about HPV were male gender and sexual behavior (having multiple partners, not using condoms).

CONCLUSIONS

Despite the high prevalence of HPV among young adults, most students knew very little about this infection. Implementing HPV educational programs and measuring their effectiveness should be a priority.

Prostate cancer screening in primary care

BACKGROUND

Little is known about the actual frequency with which men have prostate screening in primary care settings, nor are the determinants of screening understood.

METHODS

We examined the records of 50 consecutive primary care office visits by men aged 50 or older. Men were asked to complete a brief questionnaire outlining their previous use of prostate screening services and the factors that influenced screening.

RESULTS

Screening in the previous year with digital rectal examination (DRE) and prostate specific antigen (PSA) was reported by 46% and 30% of respondents, respectively. Most respondents (86%) had heard of prostate screening and most (78%) believed it was effective. The only factor predictive of screening with DRE in multivariate analysis was a doctor's discussion of screening (odds ratio, 4.8). Two factors were predictive of PSA screening--knowing someone who had prostate cancer (odds ratio, 12.8) and advancing age (odds ratio [per year], 1.1).

CONCLUSIONS

Many men are not having annual prostate screening. Men who were older, who reported knowing someone with prostate cancer, and whose doctors discussed screening, were more likely to have been screened in the past year.

A family practice residency cervical screening project: perceived screening barriers

BACKGROUND AND OBJECTIVES

A community-based family practice residency program initiated a cervical screening project to provide free Pap smears to women who had not had one in 3 years. The research identified reasons why patients had not been screened within the past 3 years.

METHODS

A total of 214 consecutive participants in the free Pap smear clinic completed questionnaires. The questionnaire asked about reasons why screening had not occurred over the last 3 years.

RESULTS

Altogether, 65.4% of the study group reported cost-related factors as barriers to participation; 37.9% cited either scheduling concerns, fear, or embarrassment; and 36% cited misinformation issues about either screening recommendations, effectiveness of treatment, or disease presentation.

CONCLUSIONS

Strategies to increase participation in Pap smear screening clinics may include increasing availability of free or low-cost screening examinations, increasing time efficiency and scheduling flexibility of examinations, and making efforts to mitigate the fear and embarrassment associated with the exam.

The influence of risk factors on breast carcinoma screening of Medicare-insured older women. National Cancer Institute Breast Cancer Screening Consortium

BACKGROUND

It is not certain whether older women with additional breast carcinoma risk factors are adequately screened or whether they are more likely to undergo screening than other older women. This study was conducted to determine whether selected risk factors influence the breast carcinoma screening rates of Medicare-insured older women (i.e., age 65 years or older).

METHODS

Self-reported rates of screening mammography and clinical breast examination in the previous year were compared for women with benign breast disease, women with a family history of breast carcinoma, and women lacking these risks, using samples of non-Hispanic white, Medicare-insured women surveyed at the 5 National Cancer Institute Breast Cancer Screening Consortium sites in 1991 (n = 5376, mean age = 69.7 years) and 1994 (n = 5086, mean age = 69.7 years).

RESULTS

In 1993, rates of screening mammography reported in the previous year at the 5 Consortium sites had a range of 46-61% for women with a family history of breast carcinoma, 49-66% for women with benign breast disease, and 31-43% for women lacking these risks. Women with a positive family history or a personal history of benign breast disease were also more likely to report having had a clinical breast examination in the previous year and having received a physician's mammography recommendation. A substantial proportion of older women with a positive family history remain inadequately screened, however. Between 25% and 35% of women in this group had not had a screening mammogram in the previous 2 years, while at some Consortium sites more than 20% reported never having had a mammogram in their lives.

CONCLUSIONS

Older women with additional risk factors are more likely to undergo screening mammography. This is due partly to more frequent physician recommendations for screening and partly to more frequent provision of clinical breast examinations. However, a substantial proportion of high risk older women remain inadequately screened, despite widespread clinical consensus that these women should be regularly screened. Interventions that target older women with risk factors and their physicians appear warranted. Understanding the mechanisms by which risk factors influence screening is an important area for future research.