Figure 3. Relative risk of a) hospital admission for infection and b) any infection from 0–18 months by duration of any breastfeeding (n=70 511).
Relative risks were adjusted for maternal age and parity (three categories), caesarean section, maternal smoking, education, birthweight (< 2500 g, 2500–3499g, 3500–4500g, >4500 g), gestational age (</> 37 weeks), gender and day-care outside home. Adj.RR=adjusted relative risk, CI=Confidence interval, LRTI=Lower respiratory tract infection.