the USA has no monopoly on stroke mortality

From: Doug Skrecky (
Date: Wed Mar 22 2000 - 06:11:25 MST

  He J. Klag MJ. Wu Z. Whelton PK.
  Welch Center for Prevention, Epidemiology, and Clinical Research, Baltimore,
  MD 21205-2223, USA.
  Stroke in the People's
  Republic of China. I. Geographic variations in incidence and risk factors.
  Stroke. 26(12):2222-7, 1995 Dec.
  BACKGROUND AND PURPOSE: Stroke is a major cause of death in
  the People's Republic of China (PRC), and
  the geographic distribution of stroke death
  varies substantially. We conducted an ecological analysis to investigate
  the relationship of prevalence of hypertension and
  other risk factors with stroke incidence
  and mortality in the PRC. METHODS: The
  relationship between prevalence of risk factors and stroke
  incidence and mortality in the PRC was assessed in 29
  provinces by examining risk factor data from PRC national surveys and
  incidence and mortality from the 1986 PRC National
  Stroke Study. RESULTS: A highly statistically significant
  correlation between prevalence of hypertension and stroke
  incidence (r = .838, P < .001) and mortality (r = .841, P < .001) was
  observed. Prevalence of hypertension explained over 70% of
  the geographic variability in stroke
  incidence (partial R2 = .703) and mortality (partial R2 = .707) in
  the PRC. There was a north-south gradient,
  with a higher prevalence of hypertension and stroke
  incidence and mortality in the north compared with
  the south of the country. In multiple
  Poisson regression analysis, a 10% increase in the
  prevalence of hypertension was associated with a 2.80-fold higher incidence
  and 2.68-fold higher mortality from stroke, whereas a 10%
  increase in the prevalence of alcohol consumption was
  associated with a 29% higher incidence and a 16% higher mortality from
  stroke. A 10% increase in the prevalence of
  cigarette smoking was associated with a 19% higher mortality from
  stroke. CONCLUSIONS: In the PRC,
  the prevalence of hypertension is strongly associated with
  the risk of stroke, and
  the geographic variation in stroke
  incidence and mortality is due mainly to differences in the
  prevalence of hypertension.

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