Table 2

Incidence of hypertension by baseline characteristics of participants
Number of new cases Incidence rate (95% CI) per 1000 person-years Crude RR (95% CI) Adjusted RRb(95% CI)
Education (years)
≤4 70 78.2 (61.8-99.6) 1 1
4–12 62 44.7 (34.0-59.8) 0.57 (0.40-0.82) 0.76 (0.52-1.01)
≥13 53 35.2 (26.5-47.8) 0.45 (0.31-0.66) 0.70 (0.46-1.08)
Marital status
Married/civil union 135 52.4 (43.6-63.2) 1 1
All others 50 37.5 (28.0-51.2) 0.72 (0.51-1.02) 0.83 (0.56-1.22)
Tobacco consumption
Current smoker 43 38.0 (27.6-53.7) 1 1
Ex-smoker 38 51.8 (37.1-73.6) 1.36 (0.85-2.18) 1.10 (0.67-1.79)
Never-smokers 104 53.4 (43.7-65.8) 1.40 (0.95-2.07)
Ethanol (g/day)
women: <15.0; men: <30.0 111 42.8 (35.2-52.4) 1 1
women: ≥15.0; men: ≥30.0 64 69.6 (53.8-91.1) 1.63 (1.17-2.26) 1.23 (0.86-1.76)
Physical activitya
1st third 56 43.5 (33.1-58.1) 1 1
2nd third 69 56.4 (43.8-73.6) 1.30 (0.89-1.90) 1.18 (0.80-1.72)
3rd third 59 44.8 (34.0-60.1) 1.03 (0.69-1.53) 1.05 (0.70-1.57)
Body mass index (Kg/m2)
<25 64 31.2 (24.0-41.1) 1 1
25–29.9 87 64.0 (51.3-80.6) 2.05 (1.45-2.91) 1.67 (1.17-2.39)
≥30 33 94.1 (65.2-138.9) 3.02 (1.91-4.76) 2.44 (1.50-3.98)

95% CI: 95% confidence interval.

RR: relative risk.

a The tertiles of the sample distribution of physical activity were 1.41, 1.58 and 3.46 MET*hour/day among women and 1.38, 1.61 and 3.26 MET*hour/day among men;

b Adjusted for sex, age, education and an interaction term of age with sex.

Pereira et al.

Pereira et al. BMC Cardiovascular Disorders 2012 12:114   doi:10.1186/1471-2261-12-114

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