Table 5. Odds Ratiosa (95% CI) for Female Hypertension in Females With Different Cumulative Exposure of Husband Smoking According to Second‐Hand‐Smoking Duration and BMI Category
GroupCumulative Exposure of Husband Smoking (Pack‐Marriage Years)b
00.1 to 2.02.1 to 4.04.1 to 6.06.1 to 8.0>8.0
Second‐hand smoking, minutes per day
01.001.19 (1.16–1.22)1.32 (1.27–1.37)1.34 (1.27–1.41)1.43 (1.33–1.52)1.56 (1.49–1.63)
1 to 151.24 (1.18–1.31)1.38 (1.26–1.51)1.55 (1.37–1.75)1.65 (1.41–1.94)1.90 (1.55–2.34)1.87 (1.64–2.15)
≥161.59 (1.49–1.69)1.91 (1.73–2.11)1.80 (1.57–2.05)1.96 (1.66–2.31)1.85 (1.48–2.30)2.33 (2.06–2.62)
BMI categoryc
Underweight0.95 (0.92–0.98)1.16 (1.07–1.25)1.26 (1.11–1.44)1.29 (1.07–1.56)1.33 (1.02–1.74)1.43 (1.17–1.75)
Normal weight1.001.24 (1.20–1.28)1.36 (1.29–1.42)1.46 (1.38–1.56)1.57 (1.45–1.70)1.72 (1.63–1.82)
Overweight2.17 (2.13–2.21)2.62 (2.51–2.74)2.93 (2.76–3.12)3.02 (2.80–3.27)3.21 (2.91–3.54)3.55 (3.34–3.77)
Obese5.21 (5.08–5.35)6.31 (5.97–6.67)7.20 (6.68–7.76)6.65 (5.99–7.37)7.14 (6.24–8.16)7.32 (6.71–7.99)
  • BMI indicates body mass index.

  • a Adjusted for age, urban inhabitants, higher school education, BMI, and alcohol consumption.

  • b Pack‐marriage year were used to evaluate the cumulative exposure of spouse smoking, calculated by multiplying the number of packs of cigarettes husband smoked per day by the number of marriage duration.

  • c BMI ≤18.0, 18.0 to 23.9, 24.0 to 27.9, and ≥28.0 kg/m2 was defined as underweight, normal weight, overweight, and obese.