Table 3

Stratified matched odds ratios for diarrhoeal disease and current breast feeding in all infants

Any breast milkEBM
OR† (95% CI)p valueOR† (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.
Overall2.74 (1.35 to 5.57)0.0053.62 (1.45 to 9.03)0.006
Social class
I–IIInm2.47 (1.07 to 5.69)0.0342.70 (0.90 to 8.15)0.078
IIIm–V/other3.47 (0.99 to 12.15)0.0525.29 (1.23 to 22.71)0.025
pi = 0.65pi = 0.45
Accommodation
Not rent—council2.33 (1.10 to 4.95)0.0282.79 (1.09 to 7.16)0.032
Rent—council6.39 (0.81 to 50.21)0.078− (infinity)
pi = 0.36
Crowding*
<1 (less crowded)1.99 (0.84 to 4.74)0.1202.98 (0.92 to 9.65)0.068
⩾1 (more crowded)10.28 (1.88 to 56.32)0.0076.98 (0.75 to 65.12)0.088
pi = 0.064pi = 0.49
Jarman
<1.5 (more affluent)1.56 (0.58 to 4.15)0.370.97 (0.28 to 3.40)0.96
⩾1.5 (more deprived)5.00 (1.76 to 14.21)0.00317.66 (3.34 to 93.44)0.001
pi = 0.105pi = 0.004
Social class and Jarman
I–IIInm, <1.51.05 (0.32 to 3.46)0.940.39 (0.08 to 1.95)0.25
IIIm–V/other, <1.51.96 (0.34 to 11.13)0.452.62 (0.33 to 21.04)0.36
I–IIInm, ⩾1.56.10 (1.79 to 20.77)0.00421.51 (3.01 to 153.7)0.002
IIIm–V/other, ⩾1.56.37 (0.97 to 41.94)0.05415.35 (1.42 to 166.4)0.025
pi = 0.18pi = 0.009