Risk of developing type 2 diabetes according to blood pressure levels and presence or absence of hypertensive treatment: the Saku study.
Authors of this article are:
Tatsumi Y,, Morimoto A, Asayama K, Sonoda N, Miyamatsu N, Ohno Y, Miyamoto Y, Izawa S, Ohkubo T.
A summary of the article is shown below:
The aim was to investigate the risk of developing type 2 diabetes according to blood pressure (BP) levels and presence or absence of hypertensive treatment. This 5-year cohort study comprised 3508 Japanese adults aged 30-74 years without diabetes who had undergone a medical checkup including a 75-g oral glucose tolerance test (OGTT) between April 2008 and March 2009 at Saku Central Hospital. Participants receiving antihypertensive treatment were categorized into controlled hypertension ( < 140/90 mmHg) or uncontrolled hypertension ( ≥ 140/90 mmHg) groups. Participants not receiving antihypertensive treatment were categorized: optimal BP ( < 120/80 mmHg), normal BP (120-129/80-84 mmHg), high-normal BP (130-139/85-89 mmHg), grade I hypertension (140-159/90-99 mmHg), and grade II/III hypertension ( ≥ 160/100 mmHg). Hazard ratios and 95% confidence intervals for the incidence of type 2 diabetes as defined by the 75-g OGTT were estimated using multivariable-adjusted Cox proportional hazard models in reference to optimal BP. During an average of 4.4 years of follow-up, 295 participants developed type 2 diabetes. Those with high-normal BP, grade I hypertension, grade II/III hypertension, and uncontrolled hypertension were at significantly higher risk for developing type 2 diabetes, with hazard ratios (95% confidence intervals) of 1.53 (1.03-2.29), 1.53 (1.02-2.32), 2.19 (1.01-4.77), and 1.81 (1.10-2.99), respectively. In conclusion, compared with those with optimal BP, individuals with BP ≥ 130/85 mmHg not receiving antihypertensive treatment and uncontrolled hypertensives with BP ≥ 140/90 mmHg receiving antihypertensive treatment were at a significantly higher risk for developing type 2 diabetes.
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Cohort study;High blood pressure;Hypertension;Type 2 diabetes
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