Severe hypertension in China: results from the China PEACE million persons project
Abstract
INTRODUCTION: People with severe hypertension have high risk of target organ damage, yet few studies focus specifically on this population. We sought to assess the characteristics, prevalence, awareness, and treatment patterns of severe hypertension among middle-aged adults in China.
METHODS: We enrolled 2 660 666 participants aged 35-75 years from 31 provinces between 2014 and 2018 in the cross-sectional China Patient-Centered Evaluative Assessment of Cardiac Events Million Persons Project. Severe hypertension was defined as SBP of at least 160 mmHg or DBP of at least 100 mmHg. Awareness and treatment were defined as self-reported diagnosis of hypertension and current use of antihypertensive medication, respectively. Analyses were completed in 2019.
RESULTS: Our sample included 2 618 757 adults with a mean age of 55.6 years (SD 9.8), 59.6% of whom were women. A total of 378 457 (14.5%) participants had severe hypertension, of whom 222 533 (58.8%) were untreated. The age--sex-standardized rate of severe hypertension was 11.6% based on the 2010 Chinese Census data. Advanced age, female sex, current drinking, obesity, lower income, diabetes, and prior cardiovascular events were associated with higher risk of severe hypertension (all P < 0.01). Of untreated participants with severe hypertension, only 60 484 (27.1%) were aware of their conditions. Among participants with severe hypertension despite treatment, 84.7% reported taking one class of antihypertensive medication; only…
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Evidence Hub reads this as a cross-sectional, done in people. Its evidence level is 4 of 5 (Low · observational). Observational designs can show an association but not prove cause.
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