Maternal group characteristics
| Study group | n | Bed-sharing n (%) | Cot-sleeping n/n (%) | p |
|---|---|---|---|---|
| *Fisher’s exact test; †χ2 test. Comparisons are adjusted for season and infant age. | ||||
| ‡Tertiary refers to any post-high school education. | ||||
| Smoking at mid trimester* | 38 | 3 (8) | 10 (25) | 0.06 |
| Tertiary education*‡ | 26 | 23 (88) | 25 (96) | 0.31 |
| Ethnicity† | 40 | |||
| Maori | 4 (10) | 7 (18) | ||
| European | 31 (78) | 23 (58) | 0.18 | |
| Other | 5 (13) | 10 (25) | ||