Table 2

HRs for the association of baseline prehypertension and hypertension with incident diabetes

African AmericanWhite
HR95% CIP valueHR95% CIP value
N (events)2,552 (372)8,341 (657)
Model 1*
 Age (5 years)1.35(1.22–1.49)<0.0011.23(1.13–1.33)<0.001
 Women1.04(0.84–1.29)0.6930.61(0.53–0.72)<0.001
 Prehypertension1.20(0.89–1.63)0.2291.99(1.64–2.41)<0.001
 Hypertension1.95(1.50–2.54)<0.0013.26(2.70–3.94)<0.001
Model 2
 Age (5 years)1.40(1.27–1.55)<0.0011.27(1.17–1.38)<0.001
 Women0.84(0.68–1.05)0.1280.62(0.53–0.72)<0.001
 Prehypertension1.03(0.76–1.40)0.8411.56(1.28–1.89)<0.001
 Hypertension1.48(1.13–1.94)0.0042.02(1.66–2.47)<0.001
 BMI (5 units)1.39(1.30–1.48)<0.0011.71(1.61–1.82)<0.001
Model 3
 Age (5 years)1.10(0.98–1.22)0.0951.08(0.99–1.18)0.081
 Women1.36(1.07–1.72)0.0111.19(1.00–1.41)<0.050
 Prehypertension0.86(0.63–1.17)0.3421.32(1.09–1.61)<0.005
 Hypertension0.92(0.70–1.21)0.5401.25(1.03–1.53)0.026
 BMI (5 units)1.26(1.17–1.34)<0.0011.37(1.28–1.47)<0.001
 HDL-C (15 mg/dL)0.89(0.79–1.00)0.0440.72(0.63–0.81)<0.001
 Glucose (10 mg/dL)2.89(2.58–3.24)<0.0013.07(2.81–3.35)<0.001
 Ln(triglycerides)1.39(1.10–1.75)0.0061.59(1.34–1.88)<0.001
  • *Using normal blood pressure (SBP <120 and DBP <80 mmHg and not using antihypertensive medication) as referent for comparing prehypertension (not hypertension and SBP 120–139 or DBP 80–89 mmHg) and hypertension (SBP ≥ 140, DBP ≥ 90 mmHg, or using antihypertensive medication). Diabetes during follow-up defined as fasting glucose ≥126 mg/dL, casual glucose ≥200 mg/dL, or use of diabetic drugs.

  • †Model 1 + BMI.

  • ‡Model 2 + fasting glucose, HDL, and triglycerides.