Respondents were asked to complete a self-administered questionnaire (see Appendix 1), which had been pretested at the University of Benin Teaching Hospital, Benin City, which is a government hospital like Central Hospital. This questionnaire was a product of the modifications detected by the pretesting. The potential predisposing factors were developed based on the literature and pretesting. In addition, the respondents were asked to include other factors if they were not available on the list.