Notes
1 The author would like to thank the following: the Internal Grants Committee of the Victoria University of Wellington for funding assistance; the Director-General of Health and the Chief Executives of the three participating Regional Health Authorities for supporting the project; the respondents for their willingness to participate; Stephen Haslett and Gurusingham Sathiyandra of the VUW Institute of Statistics and Operations Research for SYSTAT assistance; John Bacon-Shone of the University of Hong Kong Social Science Research Centre for statistical advice; and the two anonymous referees for their constructive comments on an earlier draft of this paper.