Overalwomen were recruited inPhase1and 361inPhase2
Response rates to the antenatalcomponent were over80 percentin
each phase as Table1 shows Despitesomeattritionatthepostnatal
stage the overall response rates were about two-thirds of the women
originally recruited InPhase1 there were nine informants who had
booked forhomebirthorbirthinotherhospitalsandtherewere11
in Phase2 These women were excluded from the analysis