Sun-safe practices in U.S. youth and their parents: role of caregiver on youth sunscreen use.

BACKGROUND: There is a limited understanding of the social influences, such as the role of parents on youth sun-safe practices, that may reduce the risk of developing skin cancer later in life. METHODS: This study examined the degree of correlation in sun-safe practices between youth and their parents and assessed independent parental factors of youth sunscreen use in a 1998 cross-sectional, population-based telephone survey of U.S. youth (11- to 18-year-olds) and their parents/caregivers (N=1192 pairs of youth and parents). RESULTS: Sunscreen-use practices between youth and their parents were significantly correlated, albeit small. Youth were significantly more likely to use sunscreen frequently if their parents applied it frequently on themselves. Multivariate analysis revealed three independent parental factors associated with frequent youth sunscreen use: Their parent reported to insist frequently that the child uses sunscreen (adjusted prevalence odds ratio [aPOR]=2.4, 95% confidence interval [CI], 1.6-3.8); parent reported no difficulty with protecting their child from the sun (aPOR=1.4, 95% CI, 1.1-1.9); and parent's own frequency of sunscreen use (aPOR=1.3, 95% CI, 0.9-1.8). CONCLUSIONS: Sun-safe practices were correlated between parent-child pairs and parental factors exerted a positive role on youth sunscreen-use frequency. These data may guide further sociobehavioral and intervention research for the design of skin cancer prevention programs in schools and communities to improve levels of sun-safe practices.

Using population-based cancer registry data to assess the burden of human papillomavirus-associated cancers in the United States: overview of methods.

Increased attention to human papillomavirus (HPV)-associated cancers in light of the recent release of an HPV vaccine, as well as increased availability of cancer registry data that now include reporting from a large proportion of the US population, prompted the current assessment of HPV-associated cancers. This article describes methods used to assess the burden of HPV-associated cervical, vulvar, vaginal, penile, anal, and oral cavity/oropharyngeal cancers in the United States during 1998 through 2003 using cancer registry data, and it provides a brief overview of the epidemiology of these cancers.

Surveillance for health behaviors of American Indians and Alaska Natives-findings from the behavioral risk factor surveillance system, 2000-2006.

BACKGROUND: The authors compared estimates for cancer risk factors, use of cancer screening tests, health status indicators, and access to care for American Indians and Alaska Natives (AI/ANs) and non-Hispanic whites (NHWs) in the US and for AI/ANs in 6 Indian Health Service regions. METHODS: Behavioral Risk Factor Surveillance System data were aggregated from the years 2000 through 2006 and were used to calculate weighted prevalence estimates by gender for key variables except demographic variables. RESULTS: Compared with NHWs, AI/ANs had lower prevalence estimates for income, educational attainment, insurance coverage, and access to personal healthcare providers. AI/ANs in Alaska and NHWs had similar estimates for diabetes (approximately 6%); however, the prevalence was nearly twice as high among AI/ANs in the other regions. The prevalence of obesity was higher for AI/ANs (29.6%) than for NHWs (20.9%). The prevalence of binge drinking was higher among AI/AN males (24.9%) than among AI/AN females (8.5%). Heavy drinking was more prevalent among NHW females (5.3%) than among AI/AN females (3.5%). AI/ANs were more likely to be current smokers (31.1%) than NHWs (22.8%). The prevalence of AI/ANs who never smoked ranged from 31.5% in Alaska to 56.9% in the Southwest. In 5 of the 6 regions, AI/AN females had lower prevalence estimates of both Papanicolaou and mammography testing than NHW females. The use of colorectal cancer screening tests was more common among NHWs (53.8%) than among AI/ANs (44%). CONCLUSIONS: Although cancer health disparities persist among AI/ANs, the current analysis indicated that variation in the prevalence of their chronic disease risk factors may be obscured when national data are not examined by smaller geographic areas such as regions.

Surveillance for cancers associated with tobacco use--United States, 1999-2004.

PROBLEM/CONDITION: Tobacco use is the leading preventable cause of disease and premature death in the United States. The 2004 Surgeon General report found convincing evidence for a direct causal relationship between tobacco use and the following cancers: lung and bronchial, laryngeal, oral cavity and pharyngeal, esophageal, stomach, pancreatic, kidney and renal pelvis, urinary bladder, and cervical cancers and acute myelogenous leukemia (AML). This report provides state-level cancer incidence data and recent trends for cancers associated with tobacco use. Because information on tobacco use was not available in the databases of the National Program of Cancer Registries (NPCR) and Surveillance, Epidemiology, and End Results (SEER) program, cases of cancer included in this report might or might not be in persons who used tobacco; however, the cancer types included in this report are those defined by the U.S. Surgeon General as having a direct causal relationship with tobacco use (i.e., referred to as tobacco-related cancer in this report). These data are important for initiation, monitoring, and evaluation of targeted tobacco prevention and control measures. REPORTING PERIOD COVERED: 1999--2004. DESCRIPTION OF SYSTEMS: Data were obtained from cancer registries affiliated with CDC's NPCR and the National Cancer Institute's SEER program; combined, these data cover approximately 92% of the U.S. population. Combined data from the NPCR and SEER programs provide the best source of information on population-based cancer incidence for the nation and are the only source of information for 41 states (including the District of Columbia) with cancer surveillance programs that are funded solely by NPCR. This report provides age-adjusted cancer incidence rates by demographic and geographic characteristics, percentage distributions for tumor characteristics, and trends in cancer incidence by sex. RESULTS: Approximately 2.4 million cases of tobacco-related cancer were diagnosed during 1999--2004. Age-adjusted incidence rates ranged from 4.0 per 100,000 persons (for AML) to 69.4 (for lung and bronchial cancer). High rates occurred among men, black and non-Hispanic populations, and older adults. Higher incidence rates of lung and laryngeal cancer occurred in the South compared with other regions, particularly the West, consistent with high smoking patterns in the South. INTERPRETATION: The high rates of tobacco-related cancer observed among men, blacks, non-Hispanics, and older adults reflect overall demographic patterns of cancer incidence in the United States and reflect patterns of tobacco use. PUBLIC HEALTH ACTION: The findings in this report emphasize the need for ongoing surveillance and reporting to monitor cancer incidence trends, identify populations at greatest risk for developing cancer related to tobacco use, and evaluate the effectiveness of targeted tobacco control programs and policies.

Colorectal cancer in U.S. adults younger than 50 years of age, 1998-2001.

BACKGROUND: Colorectal cancer (CRC) incidence rates are increasing among persons younger than 50 years of age, a population routinely not screened unless an individual has a high risk of CRC. This population-based study focuses primarily on describing the CRC burden for persons in this age group. METHODS: The data used for this study were derived from the National Program of Cancer Registries (NPCR) and Surveillance, Epidemiology, and End Results (SEER) surveillance systems. Age-adjusted incidence rates, rate ratios, and their corresponding 95% confidence intervals were calculated. RESULTS: CRC is ranked among the top 10 cancers occurring in males and females aged 20-49 years regardless of race. Persons younger than 50 years were more likely to present with less localized and more distant disease than do older adults. Among younger adults, age-adjusted incidence rates for poorly differentiated cancers were twice as high as rates for well-differentiated cancers. Incidence rates for poorly differentiated cancers were 60% higher than that for well-differentiated cancers diagnosed in older adults. Rates were significantly higher for blacks and significantly lower for Asians/Pacific Islanders when compared with that for whites for the most demographic and tumor characteristics examined. CONCLUSIONS: This study confirms the findings of previous population-based studies suggesting that younger patients present with more advanced disease than do older patients. This study also identifies racial and ethnic disparities in CRC incidence in this population. These findings suggest the need for additional studies to understand the behavior and etiology of CRC in blacks.

Sun protective behaviors and sunburn experiences in parents of youth ages 11 to 18.

BACKGROUND: Recent studies suggest that parental sun protective behaviors and communication influence their adolescents. However, there is limited information on sun protection for parents of adolescents. METHODS: A telephone-based, nationally representative prevalence study of sun exposure among youth, aged 11-18, and their parents living in households was conducted in 1998. Separate, independent responses were collected. Weighted prevalence estimates and 95% confidence intervals were estimated and presented for parents only (n = 1187). RESULTS: Approximately one-third of parents planned activities to avoid the sun and used sunscreen. Among parents who used sunscreen, 70% applied it while at the beach or pool, but not as often during other outdoor activities. Almost one-third of parents were participating in water or non-water recreational activities during their most serious sunburn. Differences in sun protection and sunburn experiences were observed by age, gender, sun sensitivity, race and ethnicity, and educational attainment. CONCLUSIONS: Parents have adopted sun protection habits, but have not surpassed national sun-protection goals. Combined use of sun protection behaviors may reduce sunburn prevalence and number of incident skin cancers. These data may be useful for developing or enhancing current sun protection programs for effective sun protection that include parents and their adolescents.

Long-term trends in cancer mortality in the United States, 1930-1998.

BACKGROUND: Progress against cancer can be examined by analyzing long-term trends in cancer incidence and mortality. The recent directive from the U.S. Department of Health and Human Services to adopt the 2000 U.S. standard population for the age adjustment of death rates prompted the American Cancer Society to update historical cancer mortality statistics using the new standard. METHODS: Mortality data were abstracted by race, gender, year, and age at death for 1930 through 1959 from annual volumes of Vital Statistics of the United States. For 1960 through 1998, these data were obtained from data tapes provided by the National Center for Health Statistics. Two U.S. standard million populations (1970 and 2000) were used to calculate age-adjusted rates. Average annual percent change was estimated for each decade by site, gender, and age, and the statistical significance of the change was assessed at p < 0.05. RESULTS: After long-term increases or mostly level trends that date from the 1930s for some sites, death rates for cancers of the lung (in males), prostate, female breast, colon-rectum, pancreas, leukemia, and ovary were decreasing in the 1990s. Liver cancer death rates were increasing in the 1990s. Throughout the study period, death rates for female lung cancer increased, while death rates for stomach and uterine cancers declined. CONCLUSIONS: The trends of decreasing cancer death rates for the leading cancer sites in the 1990s are encouraging. However, surveillance researchers must continue to monitor these declines to assess whether the progress seen in this decade persists. Efforts also must be made to study the sites with increasing trends and identify potential underlying causes.

Cancer statistics for Hispanics, 2003.

In this article, the American Cancer Society (ACS) provides estimates on the number of new cancer cases and deaths, and compiles health statistics on the US Hispanic population. The compiled statistics include cancer incidence, mortality, and behaviors relevant to cancer using the most recent data on incidence from the National Cancer Institute's (NCI) Surveillance, Epidemiolgy, and End Results (SEER) Program, mortality data from the National Center for Health Statistics, and behavioral information from the Behavior Risk Factor Surveillance System (Centers for Disease Control and Prevention's Behavioral Risk Factor Surveillance System [BRFSS], Youth Risk Behavior Surveillance System [YRBSS], and National Health Interview Survey [NHIS].) An estimated 67,400 new cases of cancer and 22,100 cancer deaths will occur among Hispanics in 2003. Hispanics have lower incidence and death rates from all cancers combined and from the four most common cancers (breast, prostate, lung and bronchus, and colon and rectum) than non-Hispanic whites. However, Hispanics have higher incidence and mortality rates from cancers of the stomach, liver, uterine cervix, and gallbladder, reflecting in part greater exposure to specific infectious agents and lower rates of screening for cervical cancer, as well as dietary patterns and possible genetic factors. Strategies for reducing cancer risk among Hispanics include further development of effective interventions to increase screening and physical activity, reductions in tobacco use and obesity, and the development and application of effective vaccines.