Table 4.

Changes in Odds Ratio ^* (95% confidence interval) of age for hospitalization and poor glycemic control with introduction of covariates

	Age and sex alone	Prior hospitalization	Prior glycemic control	Hypertension †	Total cholesterol level	BMI, kg/m 2	Duration of diabetes	Number of complications	Continuity of care ‡
	OR(CI)	OR(CI)	OR(CI)	OR(CI)	OR(CI)	OR(CI)	OR(CI)	OR(CI)	OR(CI)
Hospitalization
Age groups
40-49	Reference	-	-	-	-	-	-	-	-
50-59	1.34(0.98, 1.83)	1.31(0.95, 1.80)	1.33(0.97, 1.83)	1.32(0.96, 1.82)	1.33(0.97, 1.83)	1.34(0.98, 1.83)	1.30(0.95, 1.78)	1.28(0.93, 1.75)	1.31(0.96, 1.81)
60-69	1.70(1.24, 2.33)	1.61(1.17, 2.21)	1.69(1.23, 2.33)	1.63(1.20, 2.26)	1.68(1.22, 2.31)	1.69(1.24, 2.33)	1.59(1.16, 2.18)	1.55(1.12, 2.13)	1.57(1.14, 2.16)
70-79	1.97(1.28, 3.04)	1.85(1.19, 2.86)	2.00(1.30, 3.11)	1.95(1.24, 2.97)	1.96(1.27, 3.04)	1.98(1.28, 3.06)	1.76(1.14, 2.72)	1.74(1.12, 2.69)	1.72(1.11, 2.67)
Poor glycemic control
Age groups
40-49	Reference	-	-	-	-	-	-	-	-
50-59	0.74(0.63, 0.88)	0.74(0.63, 0.88)	0.76(0.64, 0.91)	0.75(0.64, 0.90)	0.73(0.62, 0.86)	0.74(0.63, 0.88)	0.72(0.60, 0.85)	0.74(0.63, 0.88)	0.73(0.62, 0.87)
60-69	0.57(0.48, 0.67)	0.57(0.48, 0.67)	0.59(0.50, 0.70)	0.59(0.50, 0.69)	0.54(0.46, 0.65)	0.57(0.48, 0.67)	0.53(0.45, 0.63)	0.57(0.48, 0.67)	0.55(0.47, 0.65)
70-79	0.45(0.37, 0.56)	0.45(0.37, 0.56)	0.52(0.42, 0.65 )	0.47(0.39, 0.59)	0.43(0.35, 0.54)	0.45(0.37, 0.55)	0.40(0.33, 0.50)	0.45(0.36, 0.55)	0.43(0.35, 0.53)

^*Odds ratios were estimated using logistic regression. Each covariate was added to a model with age and sex.

^†SBP ≥ 140 mmHg or DBP ≥ 90 mmHg.

^‡High, if Continuity of Care Index = 1 and low otherwise.