Table 4. Risk of asthma ever among offspring by maternal socioeconomic status (SES)
SES
Total n(%)
Asthma n(%)
OR (95%CI)
Upper white-collar worker
Lower white-collar worker
Blue-collar worker
Other
Missing
Total
5734(14.3)
14 763(36.8)
8 005(20.0)
9292(23.2)
2324(5.8)
40118(100)
359(6.3)
973(6.6)
477(6.0)
595(6.4)
114(4.9)
2518(6.3)
1
1.06(0.93-1.20)
0.95(0.82-1.09)
1.02(0.90-1.17)
0.77(0.62-0.96)
p value
aOR (95% Cl)*
p value
0.390
0.465
0.728
0.019
1
1.02(0.89-1.16)
1.01(0.86-1.17)
1.02(0.88-1.18)
0.42(0.32-0.54)
0.816
0.950
0.776
<0.001
p value in adjusted analysis obtained from the trend test(Wald) in logistic regression models
*Adjusted for maternal factors (asthma,hypertension, parity and ART), parental smoking and neonatal factors (sex, gestational age at
birth, mode of delivery and the onset of asthma or among controls the followup time)