Table 4 Association between parental smoking during pregnancy and risk of asthma at any time among offspring in married families

Paternal non-smoker^a

14227 (60.7)

1040 (59.7)

6.8

1

Paternal recent quitter^b

1228 (5.2)

64 (3.7)

5.0

0.30 (0.2-0.4)

<0.001

Paternal smoking

2967 (12.7)

251 (14.4)

7.8

3.01 (2.6-3.7)

<.0.001

Paternal non-smoker^a

679 (2.9)

51 (2.9)

7.8

1.12 (0.8-1.5)

0.0483

Paternal recent quitter^b

528 (2.3)

35 (2.0)

6.2

0.50 (0.3-0.7)

<0.001

Paternal smoking

1008 (4.3)

87 (5.0)

7.9

2.71 (2.1-3.5)

<.0.001

Paternal non-smoker^a

323 (1.4)

27 (1.6)

7.7

1.59 (1.0-2.5)

0.042

Paternal recent quitter^b

280 (1.2)

13 (0.7)

4.4

0.22 (0.1-0.4)

<0.001

Paternal smoking

966 (4.1)

101 (5.8)

9.5

3.94 (3.1-5.1)

<0.001

Missing data

1221 (5.2)

72 (4.1)

5.6