Birth weight 500–1250 g | Reduced risk of neurodisability at 18–21 months Improved cognitive development at 18–21 months
| High-income countries |
Infants ≤34 weeks gestation | Reduction in apnoea (equivocal) Reduction in bronchopulmonary dysplasia (chronic lung disease) Reduction in severe retinopathy of prematurity
| High-income and low-income and middle-income countries |