Table 8. Sensitivity Analyses on Association of Husband's Smoking and Wife's Hypertensiona
Exposure MeasurementsSample 1Sample 2Sample 3Sample 4
N (%)OR (95% CI)N (%)OR (95% CI)N (%)OR (95% CI)N (%)OR (95% CI)
Couples smoking status
Neither‐smoker3 473 168 (1.62)1.001 335 623 (2.31)1.003 458 232 (1.70)1.003 443 854 (1.70)1.00
Husband‐only1 376 424 (2.11)1.25 (1.23–1.27)551 304 (3.09)1.29 (1.27–1.31)1 370 226 (2.29)1.29 (1.27–1.31)1 365 940 (2.30)1.29 (1.27–1.31)
Wife‐only4185 (3.46)1.51 (1.27–1.78)1754 (4.90)1.46 (1.17–1.82)4039 (3.84)1.51 (1.27–1.78)4098 (3.88)1.54 (1.31–1.81)
Mixed10 897 (2.96)1.34 (1.20–1.50)4301 (4.58)1.47 (1.27–1.70)10 664 (3.50)1.50 (1.35–1.67)10 755 (3.62)1.51 (1.36–1.67)
Husbands' smoking amountb
03 473 168 (1.62)1.001 335 623 (2.31)1.003 458 232 (1.70)1.003 443 854 (1.70)1.00
1 to 5333 303 (1.88)1.19 (1.16–1.23)119 292 (2.70)1.19 (1.14–1.23)331 230 (2.02)1.22 (1.19–1.25)330 100 (2.02)1.22 (1.19–1.25)
6 to 10599 551 (1.97)1.21 (1.18–1.23)228 662 (2.81)1.21 (1.18–1.25)596 922 (2.13)1.24 (1.22–1.27)595 040 (2.13)1.24 (1.22–1.27)
11 to 15111 531 (2.13)1.28 (1.23–1.34)43 670 (3.21)1.38 (1.31–1.46)110 980 (2.30)1.32 (1.27–1.37)110 713 (2.31)1.32 (1.27–1.37)
16 to 20309 497 (2.51)1.32 (1.29–1.35)147 041 (3.63)1.40 (1.36–1.45)308 584 (2.77)1.38 (1.34–1.41)307 627 (2.78)1.38 (1.35–1.41)
≥2122 542 (3.56)1.61 (1.50–1.73)12 639 (4.93)1.72 (1.58–1.87)22 510 (4.14)1.75 (1.64–1.88)22 460 (4.14)1.75 (1.64–1.88)
P for trend <0.0001<0.0001<0.0001<0.0001<0.0001<0.0001<0.0001<0.0001
Cumulative exposure of Spouse smokingc, d
03 727 962 (1.61)1.001 335 623 (2.31)1.003 712 012 (1.69)1.003 698 517 (1.70)1.00
0.1 to 2.0375 889 (1.99)1.19 (1.16–1.22)255 436 (2.27)1.14 (1.11–1.17)374 125 (2.14)1.23 (1.20–1.26)373 273 (2.14)1.23 (1.20–1.26)
2.1 to 4.0141 783 (2.61)1.32 (1.28–1.37)142 067 (2.85)1.27 (1.23–1.31)141 299 (2.84)1.36 (1.32–1.40)141 036 (2.85)1.37 (1.32–1.41)
4.1 to 6.066 551 (3.09)1.35 (1.29–1.41)66 790 (3.45)1.33 (1.28–1.39)66 395 (3.43)1.40 (1.34–1.47)66 259 (3.44)1.41 (1.35–1.47)
6.1 to 8.032 293 (3.77)1.43 (1.34–1.51)32 466 (4.29)1.44 (1.36–1.52)32 255 (4.29)1.51 (1.43–1.60)32 197 (4.29)1.51 (1.43–1.60)
>8.054 032 (5.49)1.54 (1.48–1.61)54 523 (6.36)1.58 (1.52–1.64)54 189 (6.33)1.63 (1.57–1.69)54 030 (6.34)1.63 (1.57–1.69)
P for trend <0.0001<0.0001<0.0001<0.0001<0.0001<0.0001<0.0001<0.0001
  • OR indicates odds ratio; Sample 1, self‐reported female hypertension participants are excluded; Sample 2, couples with marriage duration of less than 2 years are excluded; Sample 3, women who did not like vegetables are excluded; sample 4, vegetarian women are excluded.

  • a ORs were adjusted by age, urban inhabitants, higher school education, body mass index, and alcohol consumption.

  • b Couples with female active smoking were excluded from this analysis.

  • c 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.

  • d Couples with female active smoking and missing marriage duration were excluded from this analysis.