<qa>  What is the incidence of ICH in preterm infants?ANC decreases the incidence of ICH in preterm infants 2,3,4. Severe prematurity decreases autoregulation of the cerebral circulation and predisposes to ICH or cerebral ischemia. Glucocorticoids accelerate differentiation of neuronal cells and possibly enhance maturation of germinal matrix vessels 1,33,34. ANC therapy has been associated also with a lower incidence of periventricular leukomalacia PVL and cerebral palsy CP, but these effects were not significant in Crowleys meta-analysis 2,3,4,5. In a recently published retrospective study, antenatal administration of betamethasone was associated with a decreased risk of PVL compared to antenatal dexamethasone or no treatment 17. 