Table 3 Multivariate logistic regression analysis of variables in the total 2909 mother–child pairs. The effect of GBS-IAP on AD outcomes remained after the vaginal and cesarean cohorts were combined

Mother’s age

-0.006

0.188

0.664

0.994

0.965

1.023

Breast feeding

7.937

0.019

1.000

Artificial feeding

0.117

0.073

0.787

1.124

0.483

2.613

Mixed feeding

0.371

7.936

0.005

1.449

1.120

1.876

Weight of birth

0.217

2.749

0.097

1.243

0.961

1.607

Mothers without allergic history

1.000

Mothers with allergic history

0.690

17.949

0.000

1.993

1.449

2.743

No keeping pets

1.000

Keeping pets

0.217

3.296

0.069

1.242

0.983

1.569

One child

1.000

Second child and more

0.190

2.316

0.128

1.209

0.947

1.545

Vaginal delivery

1.000

Cesarean section

-0.231

4.023

0.045

0.794

0.634

0.995

No IAP

1.000

GBS-IAP

1.083

45.273

0.000

2.953

2.154

4.048

Gestational age

-0.128

5.125

0.024

0.880

0.788

0.983

BMI

-0.032

0.952

0.329

0.969

0.909

1.033

No smoking

1.000

Smoking

0.260

2.082

0.149

1.296

0.911

1.844

No antibiotics used within 72 h

1.000

Antibiotics used within 72 h

0.115

0.468

0.494

1.121

0.808

1.557