TABLE 1.
Baseline characteristics of the MACS study cohort
| Characteristic | Cohort (N = 619) |
|---|---|
| Parental | %. (n/N) |
| Eczema history | 54.5% (337/618) |
| Allergy history | 89.0% (550/618) |
| Education (more than 15 years) | 71.6% (443/619) |
| Occupation [ANU III score] a (Mean(SD)) | 46.0 (20.59) |
| Ever smoking | 41.8% (258/617) |
| Child | |
| Female | 49.1% (304/619) |
| Weight at 4 weeks [kg] (Mean(SD) Min‐Max) | 4.0 (0.6) |
| Older siblings (Median (IQR)) | 1 (1) |
| Firstborn status | 40.1% (248/619) |
| Breastfeeding | 89.4% (554/619) |
| FLG Null | 12.1% (52/429) |
| SPINK5 b | 75.3% (323/429) |
| RCT allocation | |
| Standard cow's milk | 33.1% (205/619) |
| Soy | 33.6% (208/619) |
| Partially hydrolysed cow's milk | 33.3% (206/619) |
| Environmental | |
| Presence of pets | 49.3% (298/604) |
| Combustion heating c | 75.1% (453/603) |
| Combustion cooking c | 88.7% (535/603) |
| Distance to major roads <150 m | 23.3% (141/605) |
| NO2 [ppb] (Median (IQR); 25–75%) | 12.4 [3.39;10.9–14.3] |
Abbreviations: ANU, Australian National University; IQR, interquartile range; NO2, nitrogen dioxide ppb: parts per billion; RCT, randomized controlled trial; SD, standard deviation.
a
Continuous score 0–100.
b
Dominant G model.
c
Gas, coal or wood.