Incidence of primary liver cancer in American Indians and Alaska Natives, US, 1999-2009.

PURPOSE: To evaluate liver cancer incidence rates and risk factor correlations in non-Hispanic AI/AN populations for the years 1999-2009. METHODS: We linked data from 51 central cancer registries with the Indian Health Service patient registration databases to improve identification of the AI/AN population. Analyses were restricted to non-Hispanic persons living in Contract Health Service Delivery Area counties. We compared age-adjusted liver cancer incidence rates (per 100,000) for AI/AN to white populations using rate ratios. Annual percent changes (APCs) and trends were estimated using joinpoint regression analyses. We evaluated correlations between regional liver cancer incidence rates and risk factors using Pearson correlation coefficients. RESULTS: AI/AN persons had higher liver cancer incidence rates than whites overall (11.5 versus 4.8, RR = 2.4, 95% CI 2.3-2.6). Rate ratios ranged from 1.6 (Southwest) to 3.4 (Northern Plains and Alaska). We observed an increasing trend among AI/AN persons (APC 1999-2009 = 5%). Rates of distant disease were higher in the AI/AN versus white population for all regions except Alaska. Alcohol use (r = 0.84) and obesity (r = 0.79) were correlated with liver cancer incidence by region. CONCLUSIONS: Findings highlight disparities in liver cancer incidence between AI/AN and white populations and emphasize opportunities to decrease liver cancer risk factor prevalence.

State Indoor Tanning Laws and Prevalence of Indoor Tanning Among US High School Students, 2009-2015.

OBJECTIVES: To examine the association between state indoor tanning laws and indoor tanning behavior using nationally representative samples of US high school students younger than 18 years. METHODS: We combined data from the 2009, 2011, 2013, and 2015 national Youth Risk Behavior Surveys (n = 41 313) to analyze the association between 2 types of state indoor tanning laws (age restriction and parental permission) and the prevalence of indoor tanning during the 12 months before the survey, adjusting for age, race/ethnicity, and survey year, and stratified by gender. RESULTS: Age restriction laws were associated with a 47% (P < .001) lower indoor tanning prevalence among female high school students. Parental permission laws were not found to be associated with indoor tanning prevalence among either female or male high school students. CONCLUSIONS: Age restriction laws could contribute to less indoor tanning, particularly among female high school students. Such reductions may reduce the health and economic burden of skin cancer.

Intentional outdoor tanning in the United States: Results from the 2015 Summer ConsumerStyles survey.

There is limited literature about adults in the United States who usually or always spend time outdoors for the purpose of developing a tan, defined as intentional outdoor tanning. Using data from the 2015 Summer ConsumerStyles, an online cross-sectional survey weighted to the US adult population (n=4,127), we performed unadjusted and adjusted multivariable logistic regressions to examine the associations between demographic characteristics, behaviors, and belief factors related to skin cancer risk and intentional outdoor tanning. Nearly 10% of the study population intentionally tanned outdoors. Outdoor tanning was more prevalent among women (11.4%), non-Hispanic white individuals (11.5%), those aged 18-29years (14.1%), those without a high school diploma (12.7%), and those in the northeast United States (13.2%). The adjusted odds of outdoor tanning were significantly higher among women than men (adjusted odds ratio [AOR] 1.51, 95% confidence interval [CI] 1.12-2.04); those with a history of indoor tanning or recent sunburn than those without (AOR 2.61, CI 1.94-3.51; AOR 1.96, CI 1.46-2.63, respectively); those who agreed they looked better with a tan than those who did not (AOR 6.69, CI 3.62-12.35); and those who did not try to protect their skin from the sun when outdoors than those who did (AOR 2.17, CI 1.56-3.04). Adults who engaged in other risky behaviors that expose a person to ultraviolet (UV) radiation were more likely to tan outdoors, further increasing their risk of skin cancer. These findings may guide potential interventions to reduce UV exposure from outdoor tanning.

The association between beliefs about vitamin D and skin cancer risk-related behaviors.

Major health organizations recommend obtaining most of one's vitamin D through dietary sources rather than from sun exposure, given the link between sun exposure and increased skin cancer risk. The purpose of this study is to examine the association between beliefs about vitamin D and skin cancer risk-related behaviors, a topic on which research is limited. We analyzed cross-sectional online survey data collected in the summer of 2015 from 4127U.S. adults aged 18years and older. Overall, 19.7% of adults believed that sun protection would put them at risk of not getting enough vitamin D. However, less than half (43.1%) thought they could get enough vitamin D from dietary sources. Individuals with this belief were more likely to protect their skin when spending time outdoors (71.3%) compared with those who were neutral or disagreed (56.5%; P<0.001). Only 5.1% of adults believed that indoor tanning is an effective way to get vitamin D. Compared to those who disagreed or were neutral, those who thought it was effective were more likely to be outdoor tanners (45.1% vs. 28.5%; P<0.001) and indoor tanners (13.8% vs 1.9%; P<0.001). Beliefs about vitamin D were associated with skin cancer risk-related behaviors. Including information about vitamin D in skin cancer prevention messages may be beneficial.

The African American Women and Mass Media (AAMM) campaign in Georgia: quantifying community response to a CDC pilot campaign.

PURPOSE: To evaluate whether a culturally appropriate campaign using "Black radio" and print media increased awareness and utilization of local mammography screening services provided by the Centers for Disease Control and Prevention's National Breast and Cervical Cancer Early Detection Program among African American women. METHODS: The evaluation used a quasi-experimental design involving data collection during and after campaign implementation in two intervention sites in GA (Savannah with radio and print media and Macon with radio only) and one comparison site (Columbus, GA). We used descriptive statistics to compare mammography uptake for African American women during the initial months of the campaign (8/08-1/09) with the latter months (2/09-8/09) and a post-campaign (9/09-12/09) period in each of the study sites. Comparisons of monthly mammogram uptake between cities were performed with multinomial logistic regression. We assumed a p value <0.05 to be significant. RESULTS: We observed an increase of 46 and 20 % in Savannah and Macon, respectively, from the initial period of the campaign to the later period. However, the increase did not persist in the post-campaign period. Analysis comparing monthly mammogram uptake in Savannah and Macon with Columbus showed a significant increase in uptake from the first to the second period in Savannah only (OR 1.269, 95 % CI (1.005-1.602), p = 0.0449). CONCLUSIONS: Dissemination of health promotion messages via a culturally appropriate, multicomponent campaign using Black radio and print media was effective in increasing mammogram uptake in Savannah among low-income, African American women. Additional research is needed to quantify the relative contribution of campaign radio, print media, and community components to sustain increased mammography uptake.

Patterns of sunscreen use on the face and other exposed skin among US adults.

BACKGROUND: Sunscreen is a common form of sun protection, but little is known about patterns of use. OBJECTIVE: We sought to assess patterns of sunscreen use on the face and other exposed skin among US adults. METHODS: Using cross-sectional data from the 2013 Summer ConsumerStyles survey (N = 4033), we calculated descriptive statistics and adjusted risk ratios to identify characteristics associated with regular sunscreen use (always/most of the time when outside on a warm sunny day for ≥1 hour). RESULTS: Few adults regularly used sunscreen on the face (men: 18.1%, 95% confidence interval [CI] 15.8-20.6; women: 42.6%, 95% CI 39.5-46.7), other exposed skin (men: 19.9%, 95% CI 17.5-22.6; women: 34.4%, 95% CI 31.5-37.5), or both the face and other exposed skin (men: 14.3%, 95% CI 12.3-16.6; women: 29.9%, 95% CI 27.2-32.8). Regular use was associated with sun-sensitive skin, an annual household income ≥$60,000, and meeting aerobic activity guidelines (Ps < .05). Nearly 40% of users were unsure if their sunscreen provided broad-spectrum protection. LIMITATIONS: Reliance on self-report and lack of information on sunscreen reapplication or other sun-safety practices are limitations. CONCLUSION: Sunscreen use is low, especially among certain demographic groups. These findings can inform sun-safety interventions and the interpretation of surveillance data on sunscreen use.

State indoor tanning laws and adolescent indoor tanning.

OBJECTIVES: Recently, several state indoor tanning laws, including age restrictions, were promulgated to reduce indoor tanning among minors. We examined the effects of these laws on adolescent indoor tanning. METHODS: We used nationally representative data from the 2009 and 2011 national Youth Risk Behavior Surveys (n = 31 835). Using multivariable logistic regression, we examined the association between state indoor tanning laws and indoor tanning among US high school students. RESULTS: Female students in states with indoor tanning laws were less likely to engage in indoor tanning than those in states without any laws. We observed a stronger association among female students in states with systems access, parental permission, and age restriction laws than among those in states without any laws. We found no significant association among female students in states with only systems access and parental permission laws or among male students. CONCLUSIONS: Indoor tanning laws, particularly those including age restrictions, may be effective in reducing indoor tanning among female high school students, for whom rates are the highest. Such reductions have the potential to reduce the health and economic burden of skin cancer.

The association between demographic and behavioral characteristics and sunburn among U.S. adults - National Health Interview Survey, 2010.

OBJECTIVE: To examine the association between demographic and behavioral characteristics and sunburn among U.S. adults. METHOD: We used 2010 National Health Interview Survey data (N=24,970) to conduct multivariable logistic regressions examining associations with having 1 or more sunburns in the past year and having 4 or more sunburns in the past year. RESULTS: Overall, 37.1% of adults experienced sunburn in the past year. The adjusted prevalence of sunburn was particularly common among adults aged 18-29years (52.0%), those who repeatedly burn or freckle after 2weeks in the sun (45.9%), whites (44.3%), indoor tanners (44.1%), those with a family history of melanoma (43.9%), and those who are US-born (39.5%). Physical activity, alcohol consumption, and overweight/obesity were positively associated with sunburn (all P<0.001); sun protection behaviors were not significantly associated with sunburn (P=0.35). Among those who were sunburned in the past year, 12.1% experienced 4 or more sunburns. CONCLUSION: Sunburn is common, particularly among younger adults, those with a more sun-sensitive skin type, whites, those with a family history of melanoma, the highly physically active, and indoor tanners. Efforts are needed to facilitate sun-safety during outdoor recreation, improve the consistency of sun protection practices, and prevent sunburn, particularly among these subgroups.

Lack of Awareness of Human Papillomavirus Testing Among U.S. Women.

INTRODUCTION: National surveys provide important information for public health planning. Lack of preventive screenings awareness may result in unreliable survey estimates. This study examines women's awareness of receiving human papillomavirus testing using three national surveys. METHODS: In 2022, self-reported data analyses on human papillomavirus testing status among women without hysterectomy were conducted from the 2020 Behavioral Risk Factor Surveillance System (BRFSS) (n=80,648, aged 30-64 years), the 2019 National Health Interview Survey (NHIS) (n=7,062, aged 30-65 years), and the 2017-2019 National Survey of Family Growth (n=2,973, aged 30-49 years). Associations between human papillomavirus awareness status (yes, no, don't know) and demographic characteristics were examined with generalized multinomial logistic model to generate adjusted prevalence ratios. Adjusted risk differences were assessed with the t-test for the Don't know answer. RESULTS: A total of 21.8% or >12 million in the study population of women in the BRFSS, 19.5%, (>10.5 million women) in the NHIS, and 9.4% in the National Survey of Family Growth responded don't know to human papillomavirus testing awareness status question. Women aged 40-64 years in BRFSS and 50-65 years in NHIS were more likely to answer don't know than those aged 30-34 (p<0.05 and p<0.01, respectively). Non-Hispanic White women were more likely to answer don't know than non-Hispanic Native Hawaiian/Pacific Islander, non-Hispanic Black, non-Hispanic Asian, and Hispanic women in BRFSS and non-Hispanic Black women in NHIS (adjusted prevalence ratio range=0.60-0.78; p<0.001 and adjusted prevalence ratio=0.72; p<0.001, respectively). CONCLUSIONS: One in five women was unaware of her human papillomavirus testing status, and awareness was lower among older and non-Hispanic White women. The awareness gap may affect the reliability of estimated human papillomavirus testing population uptake using survey data.

Multilevel Small Area Estimation for County-Level Prevalence of Mammography Use in the United States Using 2018 Data.

Background: The U.S. Preventive Services Task Force recommends biennial screening mammography for average-risk women aged 50-74 years. We aim to generate county-level prevalence estimates for mammography use to examine disparities among counties. Materials and Methods: We used data from the 2018 Behavioral Risk Factor Surveillance System (BRFSS) (n = 111,902 women) and linked them to county-level data from the American Community Survey. We defined two outcomes: mammography within the past 2 years (current); and mammography 5 or more years ago or never (rarely or never). We poststratified the data with U.S. Census estimated county population counts, ran Monte Carlo simulations, and generated county-level estimates. We aggregated estimates to state and national levels. We validated internal consistency between our model-based and BRFSS state estimates using Spearman and Pearson correlation coefficients. Results: Nationally, more than three in four women [78.7% (95% confidence interval {CI}: 78.2%-79.2%)] were current with mammography, although with large variations among counties. Also, nationally, about one in nine women [11% (95% CI: 10.8%-11.3%)] rarely or never had a mammogram. County estimates for being current ranged from 60.4% in New Mexico to 86.9% in Hawaii. Rarely or never having a mammogram ranged from 6% in Connecticut to 23.0% in Alaska, and on average, almost one in eight women in all the counties. Internal consistency correlation coefficient tests were ≥0.94. Conclusions: Our analyses identified marked county variations in mammography use across the country among women aged 50-74 years. We generated estimates for all counties, which may be helpful for targeted outreach to increase mammography uptake.

Human papillomavirus vaccine practices in the USA: do primary care providers use sexual history and cervical cancer screening results to make HPV vaccine recommendations?

OBJECTIVES: Guidelines recommend against the use of Papanicolaou (Pap) or human papillomavirus (HPV) testing when determining eligibility for the HPV vaccine. Optimally, the HPV vaccine should be administered before sexual initiation. Guidelines recommend that age-eligible women with past exposure to HPV should still be vaccinated. Little is known about how primary care providers (PCPs) use sexual history and HPV and Pap tests in their HPV vaccine recommendations. METHODS: Data from the 2007 Cervical Cancer Screening Supplement (CCSS) administered with the National Ambulatory Medical Care Survey (NAMCS) and the National Hospital Ambulatory Medical Care Survey (NHAMCS) were used to assess HPV vaccination recommendations. The CCSS investigates cervical cancer screening practices, HPV testing and HPV vaccine recommendations among PCPs. A summary measure of compliance with guidelines was defined as rarely or never using the number of sexual partners and HPV tests and Pap tests to determine vaccine receipt. A total of 421 PCPs completed the CCSS in 2007. RESULTS: Among NAMCS and NHAMCS providers who recommend the HPV vaccine, only 53% (95% CI 42% to 63%) reported making guideline-consistent recommendations. The majority reported sometimes to always recommending the HPV vaccine to women with a history of an abnormal Pap result (85%; 95% CI 75% to 91%) and a positive HPV test (79%; 95% CI 70% to 86%). CONCLUSIONS: A large proportion of providers report practices that are inconsistent with guidelines. Providers may also be recommending the vaccine to women who may receive little benefit from the vaccine. Provider and system-level efforts to improve guideline-consistent practices are needed.

The lack of paid sick leave as a barrier to cancer screening and medical care-seeking: results from the National Health Interview Survey.

BACKGROUND: Preventive health care services, such as cancer screening can be particularly vulnerable to a lack of paid leave from work since care is not being sought for illness or symptoms. We first describe the prevalence of paid sick leave by broad occupational categories and then examine the association between access to paid sick leave and cancer testing and medical care-seeking in the U.S. workforce. METHODS: Data from the 2008 National Health Interview survey were analyzed by using paid sick leave status and other health-related factors to describe the proportion of U.S. workers undergoing mammography, Pap testing, endoscopy, fecal occult blood test (FOBT), and medical-care seeking. RESULTS: More than 48 million individuals (38%) in an estimated U.S. working population of 127 million did not have paid sick leave in 2008. The percentage of workers who underwent mammography, Pap test, endoscopy at recommended intervals, had seen a doctor during the previous 12 months or had at least one visit to a health care provider during the previous 12 months was significantly higher among those with paid sick leave compared with those without sick leave after controlling for sociodemographic and health-care-related factors. CONCLUSIONS: Lack of paid sick leave appears to be a potential barrier to obtaining preventive medical care and is a societal benefit that is potentially amenable to change.

Multilevel small area estimation for county-level prevalence of colorectal cancer screening test use in the United States using 2018 data.

PURPOSE-: National screening estimates mask county-level variations. We aimed to generate county-level colorectal cancer (CRC) screening prevalence estimates for 2018 among adults aged 50-75 years and identify counties with low screening prevalence. METHODS-: We combined individual-level county data from the 2018 Behavioral Risk Factor Surveillance System (BRFSS) (n = 204,947) with the 2018 American Community Survey county poverty data as a covariate, and the 2018 U.S. Census county population count data to generate county-level prevalence estimates for being current with any CRC screening test, colonoscopy, and home stool blood test. Because BRFSS is a state-based survey, and because some counties did not have samples for analysis, we used correlation coefficients to test internal consistency between model-based and BRFSS state estimates. RESULTS-: Correlation coefficients tests were ≥0.97. Model-based national prevalence for any test was 69.9% (95% CI, 69.5% -70.4%) suggesting 30% are not current with screening test use. State mean estimates ranged from 62.1% in Alaska and Wyoming to 76.6% in Maine and Massachusetts. County mean estimates ranged from 42.2% in Alaska to 80.0% in Florida and Rhode Island. Most tests were performed with colonoscopy. CONCLUSIONS-: Estimates across all U.S. counties showed large variations. Estimates may be informative for planning by states and local screening programs.

Human papillomavirus vaccine uptake among 9- to 17-year-old girls: National Health Interview Survey, 2008.

BACKGROUND: Since 2006, the human papillomavirus (HPV) vaccine has been routinely recommended for preadolescent and adolescent girls in the United States. Depending on uptake patterns, HPV vaccine could reduce existing disparities in cervical cancer. METHODS: HPV vaccination status and reasons for not vaccinating were assessed using data from the 2008 National Health Interview Survey. Households with a girl aged 9-17 years were included (N = 2205). Sociodemographic factors and health behaviors associated with vaccine uptake were assessed using multivariate logistic regression. RESULTS: Overall, 2.8% of 9- to 10-year-olds, 14.7% of 11- to 12-year-olds, and 25.4% of 13- to 17-year-olds received at least 1 dose of HPV vaccine; 5.5% of 11- to 12-year-olds and 10.7% of 13- to 17-year-olds received all 3 doses. Factors associated with higher uptake in multivariate analysis included less than high school parental education, well-child check and influenza shot in the past year, and parental familiarity with HPV vaccine. Parents' primary reasons for not vaccinating were beliefs that their daughters did not need vaccination, that their daughters were not sexually active, or had insufficient vaccine knowledge. More parents with private insurance (58.0%) than public (39.8%) or no insurance (39.5%) would pay $360-$500 to vaccinate their daughters. CONCLUSIONS: Less than one quarter of girls aged 9-17 years had initiated HPV vaccination by the end of 2008. Efforts to increase HPV uptake should focus on girls in the target age group, encourage providers to educate parents, and promote access to reduced-cost vaccines.

Melanoma survival in the United States, 1992 to 2005.

BACKGROUND: Population-based data on melanoma survival are important for understanding the impact of demographic and clinical factors on prognosis. OBJECTIVE: We describe melanoma survival by age, sex, race/ethnicity, stage, depth, histology, and site. METHODS: Using Surveillance, Epidemiology, and End Results data, we calculated unadjusted cause-specific survival up to 10 years from diagnosis for 68,495 first primary cases of melanoma diagnosed from 1992 to 2005. Cox multivariate analysis was performed for 5-year survival. Data from 1992 to 2001 were divided into 3 time periods to compare stage distribution and differences in stage-specific 5-year survival over time. RESULTS: Melanomas that had metastasized (distant stage) or were thicker than 4.00 mm had a poor prognosis (5-year survival: 15.7% and 56.6%). The 5-year survival for men was 86.8% and for persons given the diagnosis at age 65 years or older was 83.2%, varying by stage at diagnosis. Scalp/neck melanoma had lower 5-year survival (82.6%) than other anatomic sites; unspecified/overlapping lesions had the least favorable prognosis (41.5%). Nodular and acral lentiginous melanomas had the poorest 5-year survival among histologic subtypes (69.4% and 81.2%, respectively). Survival differences by race/ethnicity were observed in the unadjusted survival, but nonsignificant in the multivariate analysis. Overall 5-year melanoma survival increased from 87.7% to 90.1% for melanomas diagnosed in 1992 through 1995 compared with 1999 through 2001, and this change was not clearly associated with a shift toward localized diagnosis. LIMITATIONS: Prognostic factors included in revised melanoma staging guidelines were not available for all study years and were not examined. CONCLUSIONS: Poorer survival from melanoma was observed among those given the diagnosis at late stage and older age. Improvements in survival over time have been minimal. Although newly available therapies may impact survival, prevention and early detection are relevant to melanoma-specific survival.

Multilevel Small Area Estimation of Prostate-Specific Antigen Screening Test in the United States by Age Group: 2018 Behavioral Risk Factor Surveillance System.

BACKGROUND: In 2018, the US Preventive Services Task Force (USPSTF) recommended prostate cancer screening for men aged 55 to 69 years who express a preference for being screened after being informed about and understanding prostate-specific antigen (PSA) test benefits and risks. USPSTF recommended against screening men aged ≥70 years. We aim to generate county-level prevalence estimates, masked by national and state estimates, to identify counties with high PSA screening prevalence. METHODS: We fitted multilevel logistic regression mixed models for 4 age groups (≥40, 40 to 54, 55 to 69, ≥70 years), using data from the 2018 Behavioral Risk Factor Surveillance System (BRFSS) (n = 116,654) and other sources. We evaluated consistency between our model-based state and BRFSS direct state estimates with Spearman and Pearson correlation coefficients. RESULTS: PSA screening prevalence increased with increasing age groups: 7.7% for men aged 40 to 54 years, 27.2% for men aged 55 to 69 years, and 33.7% among men age ≥70 years, and was largely clustered in the South and Appalachia. Many county estimates among men aged ≥70 years exceeded 40%, especially in the South. Correlation coefficients were 0.94 for men aged ≥40, and ≥0.85 for men aged 40 to 54 years, 55 to 69 years, and ≥70 years. CONCLUSIONS: PSA screening was highest among men ≥70 years, for whom it is not recommended, and in the South among all age groups. Screening varied substantially within states. IMPACT: In 2018, on average, more than 1 in 4 men aged 55 to 69 years and 1 in 3 men aged ≥70 years underwent PSA screening in the prior year, suggesting potential overuse among some men.

Geographic Disparities in Late-Stage Breast Cancer Diagnosis Rates and Their Persistence Over Time.

Background: Other than skin cancer, breast cancer is the most common cancer in the United States. Lower uptake of mammography screening is associated with higher rates of late-stage breast cancers. This study aims to show geographic patterns in the United States, where rates of late-stage breast cancer are high and persistent over time, and examines factors associated with these patterns. Materials and Methods: We examined all primary breast cancers diagnosed among all counties in 43 U.S. states with available data. We used spatial cluster analysis to identify hot spots (i.e., spatial clusters with above average late-stage diagnosis rates among counties). Demographic and socioeconomic characteristics were compared between persistent hot spots and those counties that were never hot spots. Results: Of the 2,599 counties examined in 43 states, 219 were identified as persistent hot spots. Counties with persistent hot spots (compared with counties that were never hot spots) were located in more deprived areas with worse housing characteristics, lower socioeconomic status, lower levels of health insurance, worse access to mammography, more isolated American Indian/Alaska Native, Black, or Hispanic neighborhoods, and larger income disparity. In addition, persistent hot spots were significantly more likely to be observed among poor, rural, African American, or Hispanic communities, but not among poor, rural, White communities. This analysis includes a broader range of socioeconomic conditions than those included in previous literature. Conclusion: We found geographic disparities in late-stage breast cancer diagnosis rates, with some communities experiencing persistent disparities over time. Our findings can guide public health efforts aimed at reducing disparities in stage of diagnosis for breast cancer.

Screening for Colorectal Cancer in the United States: Correlates and Time Trends by Type of Test.

BACKGROUND: It is strongly recommended that adults aged 50-75 years be screened for colorectal cancer. Recommended screening options include colonoscopy, sigmoidoscopy, CT colonography, guaiac fecal occult blood testing (FOBT), fecal immunochemical testing (FIT), or the more recently introduced FIT-DNA (FIT in combination with a stool DNA test). Colorectal cancer screening programs can benefit from knowledge of patterns of use by test type and within population subgroups. METHODS: Using 2018 National Health Interview Survey (NHIS) data, we examined colorectal cancer screening test use for adults aged 50-75 years (N = 10,595). We also examined time trends in colorectal cancer screening test use from 2010-2018. RESULTS: In 2018, an estimated 66.9% of U.S. adults aged 50-75 years had a colorectal cancer screening test within recommended time intervals. However, the prevalence was less than 50% among those aged 50-54 years, those without a usual source of health care, those with no doctor visits in the past year, and those who were uninsured. The test types most commonly used within recommended time intervals were colonoscopy within 10 years (61.1%), FOBT or FIT in the past year (8.8%), and FIT-DNA within 3 years (2.7%). After age-standardization to the 2010 census population, the percentage up-to-date with CRC screening increased from 61.2% in 2015 to 65.3% in 2018, driven by increased use of stool testing, including FIT-DNA. CONCLUSIONS: These results show some progress, driven by a modest increase in stool testing. However, colorectal cancer testing remains low in many population subgroups. IMPACT: These results can inform efforts to achieve population colorectal cancer screening goals.

Fecal occult blood testing beliefs and practices of U.S. primary care physicians: serious deviations from evidence-based recommendations.

BACKGROUND: Fecal occult blood testing (FOBT) is an important option for colorectal cancer screening that should be available in order to achieve high population screening coverage. However, results from a national survey of clinical practice in 1999-2000 indicated that many primary care physicians used inadequate methods to implement FOBT screening and follow-up. OBJECTIVE: To determine whether methods to screen for fecal occult blood have improved, including the use of newer more sensitive stool tests. DESIGN: Cross-sectional national survey of primary care physicians. PARTICIPANTS: Participants consisted of 1,134 primary care physicians who reported ordering or performing FOBT in the 2006-2007 National Survey of Primary Care Physicians' Recommendations and Practices for Cancer Screening. MAIN MEASURES: Self-reported data on details of FOBT implementation and follow-up of positive results. RESULTS: Most physicians report using standard guaiac tests; higher sensitivity guaiac tests and immunochemical tests were reported by only 22.0% and 8.9%, respectively. In-office testing, that is, testing of a single specimen collected during a digital rectal examination in the office, is still widely used although inappropriate for screening: 24.9% of physicians report using only in-office tests and another 52.9% report using both in-office and home tests. Recommendations improved for follow-up after a positive test: fewer physicians recommend repeating the FOBT (17.8%) or using tests other than colonoscopy for the diagnostic work-up (6.6%). Only 44.3% of physicians who use home tests have reminder systems to ensure test completion and return. CONCLUSIONS: Many physicians continue to use inappropriate methods to screen for fecal occult blood. Intensified efforts to inform physicians of recommended technique and promote the use of tracking systems are needed.