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Relations of insulin sensitivity to longitudinal blood pressure tracking: variations with baseline age, body mass index, and blood pressure.

Abstract：

BACKGROUND:The relations of insulin sensitivity (IS) to hypertension incidence may vary according to baseline age, body mass index (BMI), and blood pressure (BP). METHODS AND RESULTS:We investigated the relations of IS (insulin sensitivity index, ISI(0,120)) to 4-year incidence of hypertension and BP progression in 1933 nonhypertensive Framingham Study participants (median age, 51 years; 56% women). Analyses were stratified by age (less than versus greater than or equal to median), BMI (<25 [normal], 25 to <30 [overweight], > or =30 kg/m2 [obese]), and BP category (systolic BP> or =130 or diastolic BP> or =85, "high normal" per the sixth report of the Joint National Committee on Prevention, Detection, Evaluation, and Treatment of High BP [JNC-VI] versus BP<130/85 mm Hg). On follow-up, 41% of participants had BP progression (> or =1 BP stage increase) and 18% had development of hypertension (systolic BP> or =140 or diastolic BP> or =90 mm Hg or antihypertensive medication use). In younger (<51 years) people with normal BMI and baseline BP<130/85 mm Hg, the second-to-fourth ISI(0,120) quartiles were associated with lower multivariable-adjusted odds for hypertension incidence (0.27; 95% CI, 0.09 to 0.83; P<0.05) and BP progression (0.37; 95% CI, 0.18 to 0.77; P<0.01) relative to the lowest (most insulin resistant) quartile. IS was not related to BP progression or hypertension incidence in older individuals, in obese participants, or in people with BP> or =130/85 mm Hg. CONCLUSIONS:In our large community-based sample, reduced IS predicted BP tracking principally in younger people with normal BMI and BP<130/85 mm Hg. Effect modification by age, BMI, and baseline BP may explain variation in the results of prior clinical investigations relating IS to hypertension incidence.

journal_name

Circulation

journal_title

Circulation

authors

Arnlöv J,Pencina MJ,Nam BH,Meigs JB,Fox CS,Levy D,D'Agostino RB,Vasan RS

doi

10.1161/CIRCULATIONAHA.105.535039

subject

Has Abstract

pub_date

2005-09-20 00:00:00

pages

1719-27

issue

eissn

0009-7322

issn

1524-4539

pii

CIRCULATIONAHA.105.535039

journal_volume

112

pub_type

杂志文章

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Relations of insulin sensitivity to longitudinal blood pressure tracking: variations with baseline age, body mass index, and blood pressure.