Table 3

Non-sexual risk behaviour of women with BV compared with controls (univariate analysis)

CharacteristicWomen with BV n = 890 (%)Controls n = 890 (%)Odds ratio (95% CI)p Value (overall)
Alcohol intake (⩾140 g/week)113 (13)85 (10) 1.40 (1.02 to 1.85) <0.05
Smoker453 (51)323 (36) 1.80 (1.50 to 2.20) <0.0001
Cigarettes per day(<0.0001)
    0437 (49)566 (64)1
    1–9134 (15)112 (12) 1.60 (1.71 to 2.05) <0.01
    10–19148 (17)116 (13) 1.70 (1.26 to 2.17) <0.001
    ⩾20171 (19)95 (11) 2.30 (1.76 to 3.09) <0.0001
Injecting drug use69/885 (8)34/873 (4) 1.40 (1.02 to 1.85) <0.0001