Adjusted matched odds ratios for diarrhoeal disease and past infant feeding factors
| Age <6 months | Age ⩾6 months | All infants | |
|---|---|---|---|
| OR‡ (95% CI) | OR§ (95% CI) | OR¶ (95% CI) | |
| *In formula fed infants. | |||
| †Excluding currently breast fed and never breast fed infants. | |||
| ‡In infants aged <6 months, OR adjusted for age (as a continuous variable), weaning, social class, and contact with person in household. | |||
| §In infants aged ⩾6 months, OR adjusted for age (as a continuous variable), sex, travel, mixer, contact with person in household and outside household. | |||
| ¶In models based on all infants, OR adjusted for age (as a continuous variable), sex, weaning, social class, travel, mixer, contact with person in household and outside household. | |||
| NA, not applicable. | |||
| Ever breast fed* | |||
| Yes | 1 | 1 | 1 |
| No | 1.55 (0.44 to 5.42) | 1.39 (0.64 to 3.04) | 1.47 (0.76 to 2.83) |
| p = 0.49 | p = 0.41 | p = 0.25 | |
| Duration of breast feeding (months) | |||
| Currently breast fed | 1 | 1 | 1 |
| ⩾6 months, currently formula | NA | 5.36 (1.45 to 19.82) | 4.49 (1.42 to 14.23) |
| 3–5 months, currently formula | 0.79 (0.12 to 5.34) | 2.92 (0.97 to 8.78) | 2.02 (0.85 to 4.85) |
| ⩽2 months, currently formula | 2.57 (0.79 to 8.39) | 2.11 (0.64 to 6.91) | 1.93 (0.83 to 4.49) |
| Never breast fed | 3.48 (0.96 to 12.58) | 4.83 (1.57 to 14.92) | 3.93 (1.71 to 9.05) |
| p = 0.14, p = 0.079† | p = 0.34, p = 0.13† | p = 0.010, p = 0.53† | |
| Months since stopped breast feeding | |||
| Currently breast fed | 1 | 1 | 1 |
| ⩽2 months | 1.13 (0.30 to 4.24) | 3.86 (1.05 to 14.18) | 1.88 (0.74 to 4.80) |
| 3–5 months | 3.92 (0.92 to 16.63) | 2.75 (0.86 to 8.76) | 2.42 (0.99 to 5.91) |
| ⩾6 months | NA | 3.38 (1.10 to 10.40) | 2.50 (0.96 to 6.51) |
| Never breast fed | 3.24 (0.89 to 11.76) | 4.97 (1.63 to 15.18) | 3.90 (1.69 to 8.98) |
| p = 0.0.093, p = 0.042† | p = 0.062, p = 0.77† | p = 0.026, p = 0.57† | |