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Table 3 Complications of pregnancy and pregnancy outcomes in women with (w/) and without (w/o) asthma by environmental tobacco smoke (p-values for interaction see Tables 2 and 4)

From: Environmental tobacco smoke exposure during pregnancy affects complications and birth outcomes in women with and without asthma

 

w/o asthma (n = 1569)

w/ asthma (n = 34)

ETS

ETS

Parameter

Category

No (n = 1346)

Yes (n = 223)

No (n = 26)

Yes (n = 8)

Gestational age at delivery (weeks)

preterm (< 34)

23 (1.7%)

8 (3.6%)

  

late preterm (34- < 37)

74 (5.5%)

16 (7.2%)

  

early term (37- < 39)

293 (21.8%)

41 (18.4%)

6 (23.1%)

2 (25.0%)

full term (39- < 41)

795 (59.1%)

125 (56.1%)

15 (57.7%)

6 (75.0%)

late term (41+)

161 (12.0%)

33 (14.8%)

5 (19.2%)

0 (0.0%)

Cesarean section

yes

460 (34.2%)

76 (34.1%)

11 (42.3%)

7 (87.5%)

Apgar 1 min

7–10

1311 (97.4%)

209 (93.7%)

26 (100.0%)

8 (100.0%)

< 7

35 (2.6%)

14 (6.3%)

  

Apgar 5 min

7–10

1337 (99.3%)

218 (97.8%)

26 (100.0%)

8 (100.0%)

< 7

9 (0.7%)

5 (2.2%)

  

Admittance of newborn

yes

86 (6.4%)

24 (10.8%)

3 (11.5%)

1 (12.5%)

Anomaly

yes

5 (0.4%)

2 (0.9%)

1 (3.8%)

0 (0.0%)

Any complication

yes

566 (42.1%)

121 (54.3%)

14 (53.8%)

3 (37.5%)

 Vaginal bleeding

yes

114 (8.5%)

24 (10.8%)

7 (26.9%)

1 (12.5%)

 UTI

yes

124 (9.2%)

27 (12.1%)

2 (7.7%)

2 (25.0%)

 Vomiting

yes

269 (20.0%)

56 (25.1%)

5 (19.2%)

1 (12.5%)

 Cerclage

yes

11 (0.8%)

1 (0.4%)

  

 PE

yes

64 (4.8%)

11 (4.9%)

1 (3.8%)

2 (25.0%)

 Pain ≥3 wk. bef. Delivery

yes

42 (3.1%)

12 (5.4%)

1 (3.8%)

0 (0.0%)

 PROM

yes

59 (4.4%)

10 (4.5%)

1 (3.8%)

0 (0.0%)

 GDM

yes

22 (1.6%)

8 (3.6%)

2 (7.7%)

1 (12.5%)

 Other

yes

12 (0.9%)

1 (0.4%)

2 (7.7%)

0 (0.0%)

Birth weight (g)

mean ± SD

3153 ± 457

3108 ± 507

3146 ± 464

3333 ± 491