Table 3.
Description of the study cohort (n =539)
| Variable | N (%) or mean ± SD |
|---|---|
| Clinical profile: | |
| Atopic dermatitis | 57 (11) |
| Food allergy | 56 (10) |
| Wheezing | 46 (9) |
| Family status: | |
| Mother’s age [year] | 28.9 ±4.4 |
| Maternal education: | |
| < 9 years of education | 21 (4) |
| 10–12 years of education | 178 (33) |
| > 12 years of education | 339 (63) |
| Father’s age [year] | 30.9 ±5.5 |
| Paternal education: | |
| < 9 years of education | 24 (4) |
| 10–12 years of education | 292 (54) |
| > 12 years of education | 213 (40) |
| Marital status (unmarried) | 134 (25) |
| ETS at the first trimester | 267 (49) |
| ETS at the second trimester | 393 (73) |
| ETS at the third trimester | 388 (72) |
| Parental self-reported allergy | 208 (38) |
| Frequent cleaning (more than 2/week) | 30 (8.1) |
ETS – environmental tobacco smoke.