摘要：Objectives. We investigated health disparities among lesbian, gay, and bisexual (LGB) adults aged 50 years and older. Methods. We analyzed data from the 2003–2010 Washington State Behavioral Risk Factor Surveillance System (n = 96 992) on health outcomes, chronic conditions, access to care, behaviors, and screening by gender and sexual orientation with adjusted logistic regressions. Results. LGB older adults had higher risk of disability, poor mental health, smoking, and excessive drinking than did heterosexuals. Lesbians and bisexual women had higher risk of cardiovascular disease and obesity, and gay and bisexual men had higher risk of poor physical health and living alone than did heterosexuals. Lesbians reported a higher rate of excessive drinking than did bisexual women; bisexual men reported a higher rate of diabetes and a lower rate of being tested for HIV than did gay men. Conclusions. Tailored interventions are needed to address the health disparities and unique health needs of LGB older adults. Research across the life course is needed to better understand health disparities by sexual orientation and age, and to assess subgroup differences within these communities. Changing demographics will make population aging a defining feature of the 21st century. Not only is the population older, it is becoming increasingly diverse. 1 Existing research illustrates that older adults from socially and economically disadvantaged populations are at high risk of poor health and premature death. 2 A commitment of the National Institutes of Health is to reduce and eliminate health disparities, 3 which have been defined as differences in health outcomes for communities that have encountered systematic obstacles to health as a result of social, economic, and environmental disadvantage. 4 Social determinants of health disparities among older adults include age, race/ethnicity, and socioeconomic status. 5 Centers for Disease Control and Prevention (CDC) and Healthy People 2020 identify health disparities related to sexual orientation as one of the main gaps in current health research. 6 The Institute of Medicine identifies lesbian, gay, and bisexual (LGB) older adults as a population whose health needs are understudied. 7 The institute has called for population-based studies to better assess the impact of background characteristics such as age on health outcomes among LGB adults. A review of 25 years of literature on LGB aging found that health research is glaringly sparse for this population and that most aging-related studies have used small, non-population-based samples. 8 Several important studies have begun to document health disparities by sexual orientation in population-based data and have revealed important differences in health between LGB adults and their heterosexual counterparts, including higher risks of poor mental health, smoking, and limitations in activities. 9,10 Studies have found higher rates of excessive drinking among lesbians and bisexual women 9,10 and higher rates of obesity among lesbians 10,11 than among heterosexual women; bisexual men and women are at higher risk of limited health care access than are heterosexuals. In addition, important subgroup differences in health are beginning to be documented among LGB adults. For example, bisexual women are at higher risk than lesbians for mental distress and poor general health. 12 A primary limitation of most existing population-based research is a failure to identify the specific health needs of LGB older adults. Most studies to date address the health needs of LGB adults aged 18 years and older 9 or those younger than 65 years. 10 This lack of attention to older adult health leaves unclear whether disparities diminish or persist or even become more pronounced in later life. A few studies have begun to examine health disparities among LGB adults aged 50 years and older. 13,14 Wallace et al. analyzed data from the California Health Interview Survey and found that LGB adults aged 50 to 70 years report higher rates of mental distress, physical limitations, and poor general health than do their heterosexual counterparts. The researchers also found that older gay and bisexual men report higher rates of hypertension and diabetes than do heterosexual men. 14 To better address the needs of an increasingly diverse older adult population and to develop responsive interventions and public health policies, health disparities research is needed for this at-risk group. Examining to what extent sexual orientation is related to health disparities among LGB older adults is a first step toward developing a more comprehensive understanding of their health and aging needs. We analyzed population-based data from the Washington State Behavioral Risk Factor Surveillance System (WA-BRFSS) to compare lesbians and bisexual women and gay and bisexual men with their heterosexual counterparts aged 50 years and older on key health indicators: outcomes, chronic conditions, access to care, behaviors, and screening. We also compared subgroups to identify differences in health disparities by sexual orientation among LGB older adults.
