History of asthma – No. (%) | 3 (27.3) | 10 (16.9) | 0.416 | (–11.2) – (+42.7) |
History of eczema – No. (%) | 3 (27.3) | 11 (18.6) | 0.681 | (–12.5) – (+39.0) |
History of hayfever – No. (%) | 6 (54.5) | 9 (15.3) | 0.009 | (+14.6) – (+70.7) |
Parental asthma – No. (%) | 4 (36.4) | 10 (16.9) | 0.212 | (–4.6) – (+51.2) |
Parental eczema – No. (%) | 1 (9.1) | 10 (16.9) | 1.000 | (–23.0) – (+22.8) |
Parental hayfever – No. (%) | 0 (0.0) | 1 (1.7) | 1.000 | (–30.4) – (+21.2) |
Parental food allergy – No. (%) | 0 (0.0) | 6 (10.2) | 0.580 | (–16.2) – (+37.0) |
Sibling asthma – No. (%) | 2 (18.2) | 9 (15.3) | 1.000 | (–16.2) – (+37.0) |
Sibling eczema – No. (%) | 2 (18.2) | 6 (10.2) | 0.602 | (–11.7) – (+52.2) |
Sibling hayfever – No. (%) | 1 (9.1) | 0 (0.0) | 0.157 | (–26.6) – (–4.9) |
Sibling food allergy – No. (%) | 1 (9.1) | 4 (6.8) | 1.000 | (–17.2) – (+52.0) |
Gestation (weeks) |
Median | 40 | 40 | 0.056 | |
Range | 4 | 19 | | |
Interquartile range | 0.5 | 3 | | |
Mean | 40 | 37.8 | | |
Caesarean delivery – No. (%) | 3 (27.3) | 23 (39.0) | 0.521 | (–20.1) – (+15.1) |
Birthweight (Kg) |
Median | 3.39 | 3.01 | 0.030 | |
Range | 2.85 | 3.86 | | |
Interquartile range | 0.91 | 1.36 | | |
Mean | 3.79 | 2.84 | | |
Breastfed – No. (%) | 8 (72.7) | 35 (59.3) | 0.511 | (–11.7 ) – (+22.2) |
Exclusively breastfed (weeks) |
Median | 0 | 0 | 0.213 | |
Range | 24 | 26 | | |
Interquartile range | 23 | 6.5 | | |
Mean | 10.36 | 5.04 | | |
Age at solid introduction (months) |
Median | 6.0 | 5.5 | 0.272 | |
Range | 85.0 | 69.0 | | |
Interquartile range | 1.5 | 4.6 | | |
Mean | 17.0 | 13.9 | | |
No. older siblings |
Median | 1.0 | 1.0 | 0.695 | |
Range | 2.0 | 6.0 | | |
Interquartile range | 1.0 | 2.0 | | |
Mean | 0.8 | 1.2 | | |
Pet ownership – No. (%) | 3 (27.3) | 22 (37.3) | 0.735 | (–19.7) – (+16.2) |