A survey of computerised hospital information system (CHIS) use was conducted in two South African provinces, in order to test a conceptual model of CHIS use developed in previous phases of this study. Relationships between factors of the conceptual model and user assessment of CHIS success; and between pairs of conceptual model factors, were derived from the survey data. The results confirmed that factors of the conceptual model were associated with CHIS success. Analysis of the relationships between factors yielded results which supported some of the conceptual model relationships, and were inconclusive for others. None of the conceptual model relationships was contradicted by the survey results. Further investigation is required to demonstrate statistical relationships between factors of the conceptual model more conclusively. The results to date support arguments for the applicability of the conceptual model of CHIS use beyond the study hospitals to other level 1 and level 2 hospitals in South Africa.