Stratified matched odds ratios for diarrhoeal disease and current breast feeding in all infants
| Any breast milk | EBM | |||
|---|---|---|---|---|
| OR† (95% CI) | p value | OR† (95% CI) | p value | |
| *Crowding = (no. persons in house excluding the infant)/no. rooms. | ||||
| †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. | ||||
| pi, p value from interaction test. | ||||
| Overall | 2.74 (1.35 to 5.57) | 0.005 | 3.62 (1.45 to 9.03) | 0.006 |
| Social class | ||||
| I–IIInm | 2.47 (1.07 to 5.69) | 0.034 | 2.70 (0.90 to 8.15) | 0.078 |
| IIIm–V/other | 3.47 (0.99 to 12.15) | 0.052 | 5.29 (1.23 to 22.71) | 0.025 |
| pi = 0.65 | pi = 0.45 | |||
| Accommodation | ||||
| Not rent—council | 2.33 (1.10 to 4.95) | 0.028 | 2.79 (1.09 to 7.16) | 0.032 |
| Rent—council | 6.39 (0.81 to 50.21) | 0.078 | − (infinity) | |
| pi = 0.36 | ||||
| Crowding* | ||||
| <1 (less crowded) | 1.99 (0.84 to 4.74) | 0.120 | 2.98 (0.92 to 9.65) | 0.068 |
| ⩾1 (more crowded) | 10.28 (1.88 to 56.32) | 0.007 | 6.98 (0.75 to 65.12) | 0.088 |
| pi = 0.064 | pi = 0.49 | |||
| Jarman | ||||
| <1.5 (more affluent) | 1.56 (0.58 to 4.15) | 0.37 | 0.97 (0.28 to 3.40) | 0.96 |
| ⩾1.5 (more deprived) | 5.00 (1.76 to 14.21) | 0.003 | 17.66 (3.34 to 93.44) | 0.001 |
| pi = 0.105 | pi = 0.004 | |||
| Social class and Jarman | ||||
| I–IIInm, <1.5 | 1.05 (0.32 to 3.46) | 0.94 | 0.39 (0.08 to 1.95) | 0.25 |
| IIIm–V/other, <1.5 | 1.96 (0.34 to 11.13) | 0.45 | 2.62 (0.33 to 21.04) | 0.36 |
| I–IIInm, ⩾1.5 | 6.10 (1.79 to 20.77) | 0.004 | 21.51 (3.01 to 153.7) | 0.002 |
| IIIm–V/other, ⩾1.5 | 6.37 (0.97 to 41.94) | 0.054 | 15.35 (1.42 to 166.4) | 0.025 |
| pi = 0.18 | pi = 0.009 | |||