Table 2.
Prevalence and changes of untreated isolated systolic hypertension by age, gender, race, and education in NHANES 1999–2010, USA.
| Characteristics | Prevalence (95% CI) | ||
|---|---|---|---|
| Overall, % | NHANES 1999–2004, % | NHANES 2005–2010, % | |
| Age (years) | |||
| 40–64 | 15.6 (13.5, 17.7) | 16.2 (13.0, 19.6) | 15.1 (12.5, 17.6) |
| ≥65 | 33.1 (31.1, 35.1) | 37.7 (34.8, 40.6) | 28.0 (25.1, 30.9)* |
| Gender | |||
| Male | 13.3 (12.1, 14.4) | 13.8 (12.1, 15.5) | 12.6 (11.1, 14.1) |
| Female | 16.9 (15.8, 18.1) | 19.5 (17.8, 21.1) | 14.3 (12.7, 15.8)* |
| Race | |||
| Hispanic | 17.3 (14.6, 19.9) | 18.3 (14.0, 22.7) | 16.0 (13.4, 18.5) |
| Non-Hispanic white | 14.5 (13.4, 15.6) | 16.2 (14.6, 17.9) | 12.7 (11.3, 14.2)* |
| Non-Hispanic black | 20.4 (18.4, 22.3) | 21.7 (19.2, 24.2) | 18.9 (15.8, 22.0) |
| Other races | 14.0 (9.9, 18.0) | 15.7 (8.1, 23.3) | 12.6 (8.2, 17.0) |
| Education | |||
| High school or below | 17.6 (16.3, 18.8) | 18.8 (16.7, 20.9) | 16.0 (14.5, 17.5) |
| College or above | 13.1 (11.8, 14.4) | 14.9 (13.2, 16.7) | 11.4 (9.6, 13.3) |
Note: the prevalence of isolated systolic hypertension was age-adjusted (except for age-specific estimates) by direct standardization to the 2000 projected US population.
NHANES: National Health and Nutrition Examination Survey; CI: confidence interval.
*indicates that the difference in the prevalence of untreated ISH between 1999–2004 and 2005–2010 is significant at the 0.05 level.