Adjusted matched odds ratios and population attributable fractions for infant feeding and sterilisation in all infants
| Cases | Controls | OR† (95% CI) | PAF | |
|---|---|---|---|---|
| *In those not currently breast feeding. | ||||
| †OR adjusted for age (as a continuous variable), sex, weaning, social class, travel, mixer, contact with person in household and outside household. | ||||
| EBM, exclusive breast milk. | ||||
| PAF, population attributable fraction. | ||||
| Sterilisation of bottles* | ||||
| Chemical/steam | 138 (83%) | 105 (91%) | 1 | |
| Boil/other | 29 (17%) | 10 (9%) | 3.42 (1.43 to 8.17) | 12% |
| p = 0.006 | ||||
| Infant feeding and sterilisation | ||||
| EBM | 11 (7%) | 23 (17%) | 1 | |
| Mixed and chemicals/steam | 7 (4%) | 12 (9%) | 2.36 (0.55 to 10.10) | 2% |
| Mixed and boil/other | 4 (2%) | 3 (2%) | 3.45 (0.55 to 21.55) | 1% |
| Formula and chemicals/steam | 121 (73%) | 90 (67%) | 3.57 (1.39 to 9.15) | 53% |
| Formula and boil/other | 23 (14%) | 7 (5%) | 14.04 (3.78 to 52.09) | 13% |