Table 4 Differences in outcomes of each subgroups in whole study population

Study population

7.0

6.3

18.2

Without history of allergies

4.1 (0.12)

0.5 (0.2–1.2)

0.5 (0.2–1.2)

4.1 (.215)

0.6 (0.2–1.4)

0.5 (0.2–1.3)

14.3 (.118)

0.7 (0.4–1.1)

0.7 (0.4–1.1)

Eczema

9.1^a (.003)

3.0^a (1.4–6.6)

3.0^a (1.4–6.6)

8.1^a (.010)

2.7^a (1.2–5.9)

2.7^a (1.2–6.0)

20.4 (.053)

1.5 (1.0–2.3)

1.5^a (1.0–2.4)

Food allergy

9.6^a (.007)

2.3^a (1.2–4.4)

2.3^a (1.2–4.4)

8.0 (.068)

1.8 (1.0–3.4)

1.8 (0.9–3.4)

21.3^a (.039)

1.5^a (1.0–2.2)

1.5^a (1.0–2.2)

Hay fever

8.0 (0.36)

1.3 (0.7–2.4)

1.4 (0.8–2.5)

6.0 (.765)

0.9 (0.5–1.7)

1.1 (0.6–2.1)

22.7^a (.007)

1.7^a (1.2–2.5)

1.8^a (1.2–2.7)

Food allergy + Eczema

11.6^a (.000)

3.2^a (1.7–6.0)

3.3^a (1.8–6.1)

9.6^a (.005)

2.4^a (1.3–4.6)

2.5^a (1.3–4.7)

22.1^a (.028)

1.5^a (1.0–2.3)

1.6^a (1.1–2.3)

Eczema + Hay fever

9.5 (.056)

1.8 (1.0–3.2)

1.8^a (1.0–3.3)

7.1 (.557)

1.2 (0.6–2.3)

1.4 (0.7–2.7)

24.5^a (.002)

1.9^a (1.3–2.8)

1.9^a (1.3–2.9)

Food allergy + Hay fever

9.2 (0.14)

1.6 (0.9–2.9)

1.6 (0.9–3.0)

6.7 (.776)

1.1 (0.6–2.2)

1.2 (0.6–2.5)

25.4^a (.002)

1.9^a (1.3–2.8)

1.9^a (1.3–2.9)

Food allergy + Eczema + Hay fever

10.3^a (.045)

1.9^a (1.0–3.4)

1.9 (1.0–3.6)

7.5 (.467)

1.3 (0.7–2.5)

1.5 (0.7–2.9)

25.3^a (.005)

1.8^a (1.2–2.7)

1.9^a (1.2–2.8)

At least two allergies

10.1^a (.001)

3.2^a (1.6–6.4)

3.3^a (1.6–6.6)

8.4^a (.020)

2.2^a (1.1–4.3)

2.3^a (1.2–4.6)

22.4^a (.003)

1.9^a (1.2-2.8)

1.9^a (1.3–2.8)