"This study examined patients/clients enrolled in: Community Health Centres (CHCs, a salaried model), Family Health Groups (FHGs, a blended fee-for-service model), Family Health Networks (FHNs, a blended capitation model), Family Health Organizations (FHOs, a blended capitation model), Family Health Teams (FHTs, an interprofessional team model composed of FHNs and FHOs), 'Other' smaller models combined, as well as those who did not belong to a model. Electronic record encounter data (for CHCs) and routinely collected health care administrative data were used to examine sociodemographic composition, patterns of morbidity and comorbidity (case mix) and ED use. ED visits rates were adjusted to account for differences in location and patient/client characteristics"--P. iii.