JAMA neurology · 2020
Trends in Antihypertensive Medication Use Among Individuals With a History of Stroke and Hypertension, 2005 to 2016.
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Santos Daniel, Dhamoon Mandip S
Аннотация
IMPORTANCE: Hypertension is a well-established, modifiable risk factor for stroke. National hypertension management trends among stroke survivors may provide important insight into secondary preventive treatment gaps.
OBJECTIVE: To investigate the adequacy of blood pressure control among stroke survivors and antihypertensive treatment trends using National Health and Nutrition Examination Survey (NHANES) data.
DESIGN, SETTING, AND PARTICIPANTS: Cross-sectional surveys conducted between 2005 and 2016 of nationally representative samples of the civilian US population were analyzed from March 2019 to January 2020. The NHANES is a large, nationally representative cross-sectional survey conducted in 2-year cycles in the United States. Evaluations include interviews, medication lists, physical examinations, and laboratory tests on blood samples. Among 221 982 140 adults 20 years or older in the NHANES from 2005 through 2016, a total of 4 971 136 had stroke and hypertension and were included in this analysis, with 217 011 004 excluded from the primary analysis.
EXPOSURES: Hypertension was defined by self-report, antihypertensive medication use, or uncontrolled blood pressure (>140/90 mm Hg) on physical examination. Antihypertensive medication was classified as angiotensin-converting enzyme inhibitors or angiotensin receptor blockers, diuretics, β-blockers, calcium channel blockers, or other.
MAIN OUTCOMES AND MEASURES: Weighted frequencies and means were reported using NHANES methods, estimating the proportion of individuals with stroke and hypertension. For all other analyses, 4 971 136 individuals with stroke and hypertension were examined, summarizing number and classes of antihypertensive medications, frequency of uncontrolled hypertension, and associations between antihypertensive classes and blood pressure control. Trends in antihypertensive medication use over time were examined.
RESULTS: Among 4 971 136 individuals with a history of stroke and hypertension, the mean age was 67.1 (95% CI, 66.1-68.1) years, and 2 790 518 (56.1%) were women. In total, 37.1% (33.5%-40.8%) had uncontrolled blood pressure on examination, with 80.4% (82.0%-87.5%) taking antihypertensive medication. The most commonly used antihypertensive medications were angiotensin-converting enzyme inhibitors or angiotensin receptor blockers (59.2%; 95% CI, 54.9%-63.4%) and β-blockers (43.8%; 95% CI, 40.3%-47.3%). Examining trends over time, diuretics have become statistically significantly less commonly used (49.4% in 2005-2006 vs 35.7% in 2015-2016, P = .005), with frequencies of other antihypertensive classes remaining constant.
CONCLUSIONS AND RELEVANCE: In this cross-sectional study that used national survey data, substantial undertreatment of hypertension was found in individuals with a history of stroke, and more than one-third had uncontrolled hypertension. Because hypertension is a major risk factor for stroke, these data demonstrate a missed opportunity nationally for secondary stroke prevention.
OBJECTIVE: To investigate the adequacy of blood pressure control among stroke survivors and antihypertensive treatment trends using National Health and Nutrition Examination Survey (NHANES) data.
DESIGN, SETTING, AND PARTICIPANTS: Cross-sectional surveys conducted between 2005 and 2016 of nationally representative samples of the civilian US population were analyzed from March 2019 to January 2020. The NHANES is a large, nationally representative cross-sectional survey conducted in 2-year cycles in the United States. Evaluations include interviews, medication lists, physical examinations, and laboratory tests on blood samples. Among 221 982 140 adults 20 years or older in the NHANES from 2005 through 2016, a total of 4 971 136 had stroke and hypertension and were included in this analysis, with 217 011 004 excluded from the primary analysis.
EXPOSURES: Hypertension was defined by self-report, antihypertensive medication use, or uncontrolled blood pressure (>140/90 mm Hg) on physical examination. Antihypertensive medication was classified as angiotensin-converting enzyme inhibitors or angiotensin receptor blockers, diuretics, β-blockers, calcium channel blockers, or other.
MAIN OUTCOMES AND MEASURES: Weighted frequencies and means were reported using NHANES methods, estimating the proportion of individuals with stroke and hypertension. For all other analyses, 4 971 136 individuals with stroke and hypertension were examined, summarizing number and classes of antihypertensive medications, frequency of uncontrolled hypertension, and associations between antihypertensive classes and blood pressure control. Trends in antihypertensive medication use over time were examined.
RESULTS: Among 4 971 136 individuals with a history of stroke and hypertension, the mean age was 67.1 (95% CI, 66.1-68.1) years, and 2 790 518 (56.1%) were women. In total, 37.1% (33.5%-40.8%) had uncontrolled blood pressure on examination, with 80.4% (82.0%-87.5%) taking antihypertensive medication. The most commonly used antihypertensive medications were angiotensin-converting enzyme inhibitors or angiotensin receptor blockers (59.2%; 95% CI, 54.9%-63.4%) and β-blockers (43.8%; 95% CI, 40.3%-47.3%). Examining trends over time, diuretics have become statistically significantly less commonly used (49.4% in 2005-2006 vs 35.7% in 2015-2016, P = .005), with frequencies of other antihypertensive classes remaining constant.
CONCLUSIONS AND RELEVANCE: In this cross-sectional study that used national survey data, substantial undertreatment of hypertension was found in individuals with a history of stroke, and more than one-third had uncontrolled hypertension. Because hypertension is a major risk factor for stroke, these data demonstrate a missed opportunity nationally for secondary stroke prevention.