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Table 2 Prevalence of asthma-like symptoms and respiratory infections at ages 6 and/or 12 months (N = 140)

From: Maternal immune markers in serum during gestation and in breast milk and the risk of asthma-like symptoms at ages 6 and 12 months: a longitudinal study

Asthma-like symptoms (% (n/total))

6 months

12 months

6 or 12 months

6 and 12 months

Wheezing

15.2 (21/138)

13.7 (14/102)

20.7 (29/140)

4.3 (6/140)

One or more wheezing attacks

31.8 (35/110)

26.9 (21/78)

39.0 (48/123)

6.5 (8/123)

Felt unwell and made noise when breathing

13.1 (18/137)

15.7 (16/102)

21.4 (30/140)

2.9 (4/140)

Shortness of breath

2.2 (3/136)

4.9 (5/102)

5.8 (8/139)

0 (0/139)

Combined asthma-like symptoms

Any asthma-like symptom

34.8 (48/138)

32.4 (33/102)

47.9 (67/140)

10.0 (14/140)

Child respiratory infections

Pneumonia

0 (0/137)

3.9 (4/102)

2.9 (4/140)

0 (0/140)

Wheezy bronchitis

3.7 (5/137)

7.8 (8/102)

8.6 (12/140)

0.7 (1/140)

Infectious bronchitis

0.7 (1/137)

1.9 (2/102)

2.1 (3/140)

0 (0/140)

Mid-year infection

22.6 (31/137)

47.1 (48/102)

42.1 (59/140)

14.3 (20/140)

Combined child respiratory infections

Any respiratory infection

24.1 (33/137)

49.0 (50/102)

44.3 (62/140)

15.0 (21/140)