Table 1.

Diabetes status in the 1996/97 Ontario Health Survey II (OHS II) compared to the Ontario Diabetes Registry (ODD)

			Physician diagnosed diabetes† (95% Confidence Interval)
			Diabetes mellitus	No diabetes mellitus
Self-reported diabetes status*	Diabetes mellitus	N (unweighted)	840	68	908
		% (weighted)	46.8	0.25
		Mean HUI3 (unadjusted, weighted)	0.799 (0.773 – 0.826)	0.862 (0.811 – 0.914)
		Mean HUI3 (age-adjusted, weighted)	0.891 (0.865 – 0.917)	0.729 (0.678 – 0.780)
	No diabetes mellitus	N (unweighted)	830	21,325	22,155
		% (weighted)	53.2	99.8
		Mean HUI3 (weighted)	0.872 (0.854 – 0.889)	0.917 (0.888 – 0.945)
		Mean HUI3 (age-adjusted, weighted)	0.906 (0.889 – 0.923)	0.916 (0.888 – 0.944)
			1,670	21,393	23,063

Sensitivity of self-reported DM = 46.8% Specificity of self-reported DM = 99.8% * Self-reported DM status from the 1996/97 Ontario Health Survey: "Do you have diabetes diagnosed by a health professional?" ^† DM status from the Ontario Diabetes Database (ODD) Abbreviations: DM diabetes mellitus, HUI3 Health Utilities Index Mark III