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American Journal of Epidemiology Vol. 143, No. 10: 1018-1024
Copyright © 1996 by The Johns Hopkins University School of Hygiene and Public Health
research-article |
Prevalence of Diabetes Mellitus in New Caledonia: Ethnic and Urban-Rural Differences
1INSERM CJF 93–06, Hôpital Saint-Charles Montpellier, France
2INSERM Unité, 21 Villejuif, France
Reprint requests to Dr. Laure Papoz, INSERM CJF 93–06, Hôpital Saint-Charles, 34295 Montpellier Cedex 5, France.
The prevalence of diabetes mellitus was assessed in the multiracial population of New Caledonia in the South Pacific with the use of a two-step procedure. The first step included 9,390 subjects aged 30–59 years who were visited at home for screening with glucose strips. All subjects who had a fasting capillary blood glucose value 
110 mg/dl were invited to come to the health center for a more detailed examination. In non-fasting subjects, a capillary blood glucose value of 140 mg/dl was chosen as the cut-off point for further examination. A 2-hour glucose tolerance test was performed according to World Health Organization (WHO) recommendations on 424 positive screenees as well as in a sample of 517 negative screenees. In all, 219 previously known diabetic subjects were found; among subjects classified as positive at the first step, 277 were detected as new cases of diabetes. After correction to take into account false negative subjects, the age-adjusted prevalence rate of diabetes was estimated to be 8.9% overall; Polynesians (15.3%) were found to be more at risk than Melanesians or Europeans (8.4% in the two other groups). A higher prevalence of diabetes was found in Melanesians who lived in the urban area compared with Melanesians who lived in villages. This finding confirms the deleterious effect of western life in this population subject to rapid modernization.
diabetes mellitus; non-insulin-dependent; ethnic groups; prevalence; rural health; urban health
3Members of the CALDIA Study Group are as follows. Health and Social Services in New Caledonia-Medical and Research Commission: Drs. F. Ledoux and Ch. Merger; Territory: Dr. M. Germain; North Province: Drs. P. Calen and P. H. Genty; Loyalty Islands: Drs. J. Coscoquela and Ph. Buffet; South Province: Drs. J. G. Lambert and P. Baqué; Biochemistry (Territorial Hospital): Drs. S. Solar and Y. Barguil. Coordination-INSERM, France: Dr. L. Papoz (principal coordinator), Dr. D. Simon, J. Cubeau, A. Lacroux, A. Forhan, and A. Ponton; in New Caledonia: Dr. S. Bamy (local coordinator), D. Juranville, Dr. H. Lmahdi, and R. Manuohalalo
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