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Trends in All-Cause, Cardiovascular, and Noncardiovascular Mortality Among US Adults With Hypertension

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Journal Hypertension
Date 2024 Feb 23
PMID 38390740
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Abstract

Background: Death certificate data indicate that hypertension may have increased as a contributing cause of death among US adults. Hypertension is not commonly recorded on death certificates although it contributes to a substantial proportion of cardiovascular disease (CVD) deaths.

Methods: We estimated changes in all-cause, CVD, and non-CVD mortality over 5 years of follow-up among 4 cohorts of US adults with hypertension using mortality follow-up data from National Health and Nutrition Examination Survey III in 1988 to 1994, and National Health and Nutrition Examination Survey cycles from 1999 to 2000 through 2015 to 2016 (n=20 927). Hypertension was defined as systolic blood pressure ≥140 mm Hg, diastolic blood pressure ≥90 mm Hg, or antihypertensive medication use. Participants were grouped according to the date of their National Health and Nutrition Examination Survey study visit (1988-1994, 1999-2004, 2005-2010, 2011-2016).

Results: There were 2646, 1048, and 1598 all-cause, CVD, and non-CVD deaths, respectively. After age, gender, and race/ethnicity adjustment and compared with the 1988 to 1994 cohort, the hazard ratio of all-cause mortality was 0.88 (95% CI, 0.76-1.01) for the 1999 to 2004 cohort, 0.82 (95% CI, 0.70-0.95) for the 2005 to 2010 cohort, and 0.89 (95% CI, 0.75-1.05) for the 2011 to 2016 cohort ( trend=0.123). The age, gender, and race/ethnicity-adjusted hazard ratios for CVD mortality compared with the 1988 to 1994 cohort were 0.74 (95% CI, 0.60-0.90) for the 1999 to 2004 cohort, 0.61 (95% CI, 0.50-0.74) for the 2005 to 2010 cohort, and 0.57 (95% CI, 0.44-0.74) for the 2011 to 2016 cohort ( trend <0.001). There was no evidence of a change in CVD mortality between the 2005 to 2010 and 2011 to 2016 cohorts (=0.661). Noncardiovascular mortality did not decline over the study period ( trend=0.145).

Conclusions: The decline in CVD mortality among US adults with hypertension stalled after 2005 to 2010.

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