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Table 2 Hazard ratios for diabetes incidence by blood pressure categories

From: High-normal blood pressure and long-term risk of type 2 diabetes: 35-year prospective population based cohort study of men

Blood pressure categories Number at risk Diabetes cases Person years Diabetes cases per 100 000 person years Age adjusted hazard ratios (95% CI) Age and BMI adjusted hazard ratios (95% CI) Age and multivariable adjusted* hazard ratios (95% CI)
Systolic blood pressure        
< 130 mm Hg (normal) 1 279 109 36292 300 ref. ref. ref.
130 – 139 mm Hg (high-normal) 1 315 159 35541 447 1.56 (1.22-1.99) 1.39 (1.09-1.78) 1.43 (1.12-1.84)
140 – 159 mm Hg (mild hypertension) 2622 330 69845 472 1.66 (1.34-2.07) 1.40 (1.13-1.75) 1.43 (1.14-1.79)
≥ 160 mm Hg (moderate/severe) 2117 358 51695 693 2.68 (2.16-3.32) 2.03 (1.63-2.52) 1.95 (1.55-2.46)
Increase per 10 mm Hg      1.16 (1.13-1.18) 1.12 (1.08-1.14) 1.10 (1.07-1.14)
Diastolic blood pressure        
< 85 mm Hg (normal) 1628 157 45528 345 ref. ref. ref.
85 – 89 mm Hg (high normal) 896 83 24227 343 1.02 (0.78-1.33) 0.95 (0.72-1.23) 0.93 (0.70-1.22)
≥ 90 mm Hg (hypertension) 4809 716 123617 579 1.82 (1.53-2.16) 1.41 (1.18-1.68) 1.34 (1.12-1.62)
Increase per 5 mm Hg      1.14 (1.12-1.17) 1.09 (1.06-1.11) 1.08 (1.06-1.11)
  1. *Multivariable adjusted model included age, body mass index, cholesterol level, antihypertensive treatment, smoking, physical activity and occupational class.