期刊
JAMA NEUROLOGY
卷 77, 期 1, 页码 109-113出版社
AMER MEDICAL ASSOC
DOI: 10.1001/jamaneurol.2019.3258
关键词
-
资金
- National Heart, Lung, and Blood Institute (NHLBI)
- National Institutes of Health
- US Department of Health and Human Services [HHSN268201700001I, HHSN268201700002I, HHSN268201700003I, HHSN268201700005I, HHSN268201700004I]
- National Institutes of Health (NHLBI, National Institute of Neurological Disorders and Stroke, National Institute on Aging, and National Institute on Deafness and Other Communication Disorders) [2U01HL096812, 2U01HL096814, 2U01HL096899, 2U01HL096902, 2U01HL096917]
- NHLBI [R01-HL70825]
- National Institute on Aging [R01 AG040282]
Importance Determining whether the previously reported decreased stroke incidence rates from 1987 to 2011 among US adults 65 years and older in the Atherosclerosis Risk in Communities (ARIC) study continued to decrease subsequently can help guide policy and planning efforts. Objective To evaluate whether stroke incidence declines among older adults in the ARIC study continued after 2011. Design, Setting, and Participants ARIC is a community-based prospective cohort study including 15792 individuals aged 45 to 64 years at baseline (1987-1989), selected by probability sampling from residents of Forsyth County, North Carolina; Jackson, Mississippi (black individuals only); the northwestern suburbs of Minneapolis, Minneapolis; and Washington County, Maryland (ie, center). The present study included ARIC participants free of stroke at baseline, followed up through December 31, 2017. Data were collected through personal interviews and physical examinations during study visits, annual/semiannual telephone interviews, and active surveillance of discharges from local hospitals. Stroke events were adjudicated by study-physicians reviewers. Analysis began September 2018. Main Outcomes and Measures The main outcome was stroke incidence rates, which were computed with 95% CIs stratifying the analysis by age and calendar time. Trends in adjusted incidence rates were assessed using Poisson regression incidence rate ratios. Models included calendar time, age, sex, race/center, and time-varying risk factors (hypertension, diabetes, coronary heart disease, cholesterol-lowering medication use, and smoking). Results Of 14357 ARIC participants with 326654 person-years of follow-up, the mean (SD) age at baseline was 54.1 (5.8) years and 7955 (55.4%) were women. From 1987 to 2017, a total of 1340 incident strokes occurred among ARIC participants, and among them, 1028 (76.7%) occurred in participants 65 years and older. Crude incidence rates of stroke for participants 65 years and older decreased progressively from 1987 to 2017. Incidence rates, adjusted for age, sex, race/center, and time-varying risk factors, decreased by 32% (95% CI, 23%-40%) per 10 years in participants 65 years and older. Findings were consistent across decades, sex, and race. Conclusions and Relevance Validated total stroke incidence rates in adults 65 years and older decreased over the last 30 years in the ARIC cohort. The decrease in rates previously reported for 1987 to 2011 extends for the subsequent 6 years in men and women as well as in white and black individuals. This cohort study evaluates whether stroke incidence declined among older adults from 1987 to 2011 vs 2011 to 2017 in the Atherosclerosis Risk in Communities study. Question Have stroke incidence rates among adults aged 65 years and older continued to decline in recent years? Findings In this study of the Atherosclerosis Risk in Communities cohort study data including 1340 incident strokes occurring from 1987 to 2017, adjusted stroke incidence rates decreased by 32% per 10 years in participants 65 years and older. Findings were consistent in men and women as well as in white and black individuals. Meaning Validated stroke incidence rates in adults 65 years and older decreased over the last 30 years in the Atherosclerosis Risk in Communities cohort; the decrease in rates previously reported for 1987 to 2011 has extended to 2017.
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