Clinical study| Volume 116, ISSUE 10, P676-681, May 15, 2004

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Familial aggregation of hypertension treatment and control in the genetic epidemiology network of arteriopathy (GENOA) study



      To assess if the treatment and control of hypertension aggregates in families.


      The Genetic Epidemiology Network of Arteriopathy (GENOA) study enrolled sibships between 1997 and 1999, including 1329 hypertensive non-Hispanic blacks (1057 sibling pairs) from Jackson, Mississippi, 1133 hypertensive non-Hispanic whites (859 sibling pairs) from Rochester, Minnesota, and 752 hypertensive Hispanic whites (627 sibling pairs) from Starr County, Texas. Hypertension awareness and drug treatment were ascertained at examination; control was defined by blood pressure levels <140/90 mm Hg. As a measure of familial aggregation, odds ratios were calculated to assess concordance between sibling pairs in the treatment and control of hypertension.


      Overall, 90.5% of subjects were aware of their hypertension; 90.6% of those who were aware were treated with antihypertensive drugs and 56.0% of those treated had their hypertension controlled. There was statistically significant sib-sib concordance in the treatment of hypertension (odds ratio [OR] = 1.61; 95% confidence interval [CI]: 1.25 to 2.47; P = 0.003) and in the control of drug-treated hypertension (OR = 1.51; 95% CI: 1.25 to 1.81; P <0.0001).


      These findings suggest that the treatment and control of hypertension aggregates in families.
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