Strikingly low prevalence of atrial fibrillation in elderly Tanzanians
| Autor: | Philip C. Adams, Felicity Dewhurst, Paul Chaote, Golda Orega, Matthew J. Dewhurst, Richard Walker, William K. Gray |
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| Rok vydání: | 2012 |
| Předmět: |
Gerontology
Male Cross-sectional study Population Prevalence Blood Pressure Tanzania Body Mass Index Electrocardiography Atrial Fibrillation Medicine Humans Mass Screening education Mass screening Aged Aged 80 and over education.field_of_study business.industry Mortality rate Case-control study Age Factors Confidence interval Cross-Sectional Studies Case-Control Studies Population Surveillance Female Geriatrics and Gerontology business Body mass index Demography |
| Zdroj: | Journal of the American Geriatrics Society. 60(6) |
| ISSN: | 1532-5415 |
| Popis: | Objectives: To determine the prevalence of atrial fibrillation (AF) in individuals aged 70 and older in a rural African community. Design: Community-based cross-sectional survey. Setting: A demographic surveillance site (DSS) within the rural Hai district of northern Tanzania. Participants: Approximately one-quarter (N = 2,232) of the population aged 70 and older of the DSS. Measurements: Participants were screened for AF using 12-lead electrocardiography; demographic and 1-year mortality data were collected; and functional status, body mass index, and blood pressure were recorded. The sex-specific prevalence of AF in each 5-year age band was determined. Results: Fifteen of 2,232 participants (12 women, 3 men) had AF, giving a crude prevalence rate of 0.67% (95% confidence interval (CI) = 0.33�1.01) and an age-adjusted prevalence of 0.64% (95% CI = 0.31�0.97). Prevalence was 0.96% (95% CI = 0.42�1.49) in women and 0.31% (95% CI = -0.04 to 1.24) in men. Prevalence increased with age, from 0.46% (95% CI = 0.01�0.90) in those aged 70�74�1.30% (95% CI = 0.17�2.42) in those aged 85 and older. One-year mortality was 50% in women and 66.6% in men. Conclusions: This is the first published community-based AF prevalence study from sub-Saharan Africa. The prevalence rate of AF is strikingly lower than in other elderly populations studied, yet the 1-year mortality rate was exceedingly high. |
| Databáze: | OpenAIRE |
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