Trends by year in proportion of mothers. (a) reporting a high score for antenatal services at Entebbe Hospital compared with other facilities. (b) attending Entebbe Hospital compared with other facilities. P values for a test for trend were obtained using complex survey commands (svylogit).
Tann et al. BMC Pregnancy and Childbirth 2007 7:23 doi:10.1186/1471-2393-7-23