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Table 3 Associations * (Odds Ratio, 95% confidence interval) of age and other predictors (2007–2008) with hospitalization and poor glycemic control (2009)

From: Age-related differences in diabetes care outcomes in Korea: a retrospective cohort study

 

Hospitalization

 

Poor glycemic control

 
 

Model 1

Model 2

Model 1

Model 2

 

OR(CI)

OR(CI)

OR(CI)

OR(CI)

Age groups

    

  40-49

Reference

-

-

-

  50-59

1.34(0.98, 1.83)

1.09(0.77, 1.54)

0.74(0.63, 0.88)

0.85(0.70, 1.05)

  60-69

1.70(1.24, 2.33)

1.21(0.91, 1.60)

0.57(0.48, 0.67)

0.65(0.52, 0.80)

  70-79

1.97(1.28, 3.04)

1.47(1.03, 2.12)

0.45(0.37, 0.56)

0.48(0.38, 0.60)

Prior hospitalization

    

  No

Reference

-

-

-

  Hospitalized

2.83(2.07, 3.85)

2.04(1.49, 2.78)

1.08(0.88, 1.32)

1.16(0.93, 1.43)

Prior glycemic control

    

  Controlled

Reference

-

-

-

  Uncontrolled (≥126 mg/dL)

1.27(0.97, 1.64)

1.25(0.96, 1.63)

3.49(3.08, 3.95)

3.33(2.94, 3.70)

Hypertension†

    

  Normal

Reference

-

-

-

  Hypertensive

1.32(1.07, 1.63)

1.30(1.05, 1.60)

1.15(1.00, 1.32)

1.15(1.00, 1.33)

Total cholesterol level

    

  Desirable

Reference

-

-

-

  High (≥240 mg/dL)

1.28(0.83, 1.93)

1.27(0.83, 1.94)

1.24(1.03, 1.49)

1.21(1.01, 1.46)

BMI, kg/m2

    

  Normal(<25)

Reference

-

-

-

  Overweight(25–29.9)

1.31(0.80, 2.16)

1.39 (0.83, 2.32)

1.02(0.77, 1.34)

1.04(0.79, 1.39)

  Obese(≥30)

1.39(0.83, 2.31)

1.43(0.86, 2.38)

1.03(0.78, 1.36)

1.09(0.82, 1.45)

Duration of diabetes

    

  3-5 yrs

Reference

-

-

-

  6-8 yrs

1.59(1.16, 2.17)

1.45(1.05, 2.00)

1.24(1.06, 1.44)

1.17(0.99, 1.37)

  ≥9 yrs

1.83(1.36 2.43)

1.62(1.21, 2.18)

1.50(1.31, 1.73)

1.39(1.19, 1.61)

Number of complications

    

  No

Reference

-

-

-

  1-2

1.85(1.39, 2.44)

1.43(1.04, 1.92)

0.94(0.78, 1.14)

0.93(0.76, 1.14)

  ≥3

3.52(2.41, 5.12)

2.27(1.49, 3.33)

0.93(0.77, 1.13)

0.88(0.71, 1.10)

Continuity of care‡

    

  High

Reference

-

-

-

  Low

1.86(1.44, 2.38)

1.43(1.10, 1.89)

1.11(0.97, 1.26)

1.06(0.93, 1.22)

  1. *Associations were estimated using logistic regression. Model 1was adjusted for gender and age. Model 2 was adjusted for types of main medical institution attended and level of health insurance premium as well as the covariates listed in the table.
  2. †SBP ≥ 140 mmHg or DBP ≥ 90 mmHg.
  3. ‡High, if Continuity of Care Index = 1 and low otherwise.
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