Maternal atopy | | | | | | | |
No | 367 | 31 (8.5) | 0.188 | 29 (7.9) | 0.462 | 22 (6.0) | 0.161 |
Yes | 184 | 22 (12.0) | | 18 (9.8) | | 17 (9.2) | |
Paternal atopy | | | | | | | |
No | 294 | 18 (6.1) | 0.001 | 20 (6.8) | 0.060 | 13 (4.4) | 0.003 |
Yes | 207 | 32 (15.5) | | 24 (11.7) | | 24 (11.6) | |
Maternal asthma | | | | | | | |
No | 477 | 42 (8.8) | 0.109 | 37 (7.8) | 0.109 | 29 (6.1) | 0.023 |
Yes | 75 | 11 (14.7) | | 10 (13.3) | | 10 (13.3) | |
Paternal asthma | | | | | | | |
No | 472 | 43 (9.1) | 0.268 | 39 (8.3) | 0.490 | 28 (5.9) | 0.007 |
Yes | 76 | 10 (13.2) | | 8 (10.7) | | 11 (14.5) | |
Socioeconomic class* | | | | | | | |
I/II | 146 | 17 (11.6) | 0.384 | 19 (13.0) | 0.018 | 13 (8.9) | 0.188 |
III–V | 352 | 32 (9.1) | | 23 (6.6) | | 20 (5.7) | |
First born | | | | | | | |
No | 318 | 23 (7.2) | 0.028 | 20 (6.3) | 0.028 | 15 (4.7) | 0.012 |
Yes | 234 | 30 (12.8) | | 27 (11.6) | | 24 (10.3) | |
Pet cat by age 1 | | | | | | | |
No | 370 | 39 (10.5) | 0.286 | 34 (9.2) | 0.413 | 25 (6.8) | 0.687 |
Yes | 182 | 14 (7.7) | | 13 (7.1) | | 14 (7.7) | |
Pet dog by age 1 | | | | | | | |
No | 398 | 40 (10.1) | 0.565 | 36 (9.1) | 0.468 | 29 (7.3) | 0.744 |
Yes | 154 | 13 (8.4) | | 11 (7.1) | | 10 (6.5) | |
Breast feeding | | | | | | | |
No | 205 | 14 (6.8) | 0.089 | 16 (7.8) | 0.639 | 10 (4.9) | 0.123 |
Yes | 347 | 39 (11.2) | | 31 (9.0) | | 29 (8.4) | |
Anyone smoking in the home at age 1 | | | | | | | |
No | 317 | 25 (7.9) | 0.112 | 25 (7.9) | 0.547 | 16 (5.1) | 0.032 |
Yes | 235 | 28 (11.9) | | 22 (9.4) | | 23 (9.8) | |