Trends in age-adjusted prevalence of cognitive and functional disability (including the 5 subdomains) over the survey periods from 1999–2002 to 2007–2010. Abbreviations: ADL, activities of daily living; IADL, instrumental activities of daily living. All P-values for non-hypertension vs. hypertension <0.001. P-values for the difference in trends over 3 study period by hypertension status: cognitive disability = 0.31, functional disability = 0.003 (subdomains: ADL = 0.46, IADL = 0.01, general physical = 0.13, mobility = 0.29, social = 0.04). Weighted prevalence rates are age-adjusted to the 2000 US population.