Table 3—

Logistic regression in 4,151 type 1 diabetic patients, followed from 1997 to 2004, with either long-term successful or deteriorating glycemic control or successful blood pressure (BP) control as dependent variables and with clinical characteristics in 1997 as predictors

A1C <7.3% 1997–2004 vs. A1C ≥7.3% 1997–2004
A1C 1997 < 2004 vs. A1C 1997 ≥ 2004
BP ≤130/80 1997–2004 vs. BP >130/80 1997–2004
Means ± SDOR (95% CI), χ2 valueMeans ± SDOR (95% CI), χ2 valueMeans ± SDOR (95% CI), χ2 value
n620 vs. 3,5311,837 vs. 2,3141,763 vs. 2,388
Continuous predictors*
    Age37.9 ± 12.8 38.5 ± 11.91.23 (0.87–1.75), 1.437.9 ± 12.1 38.9 ± 12.00.76 (0.59–0.98), 4.633.2 ± 9.8§ 42.3 ± 12.20.22 (0.17–0.29), 114§
    Diabetes duration21.5 ± 14.3§ 23.4 ± 12.50.66 (0.46–0.94), 5.222.4 ± 13.3 23.7 ± 12,40.97 (0.75–1.26), 0.0518.2 ± 10.8§ 26.7 ± 13.00.52 (0.40–0.69), 21.2§
    BMI 199724.3 ± 3.2§ 24.9 ± 3.30.53 (0.42–0.68), 27.0§24.9 ± 3.3 24.8 ± 3.31.15 (0.98–1.36), 2.824.3 ± 3.0§ 25.2 ± 3.40.49 (0.41–0.59), 56.4§
    BMI 2004 − BMI 19970.52 ± 1.82 0.61 ± 2.100.81 (0.64–1.03), 2.80.46 ± 1.98§ 0.71 ± 2.120.62 (0.53–0.74), 30.1§0.58 ± 1.90 0.61 ± 2.170.73 (0.61–0.88), 10.9§
%OR (95% CI), χ2 value%OR (95% CI), χ2 value%OR (95% CI), χ2 value
Nominal predictors
    Male sex58.2 52.71.30 (1.08–1.55), 8.354.5 52.81.09 (0.97–1.24), 2.047.4§ 58.00.62 (0.54–0.71), 45.6§
    Smoker 19979.8§ 16.50.60 (0.44–0.79), 12.6§15.2 15.81.03 (0.87–1.23), 0.1114.5 16.31.12 (0.92–1.36), 1.3
    Microalbuminuria 19978.1§ 17.20.47 (0.34–0.64), 21.9§14.5 16.90.85 (0.71–1.02), 3.18.6§ 21.20.45 (0.36–0.56), 53.7§
  • The odds ratio (OR) for each predictor was adjusted for all other predictors in the table and for use of antihypertensive drugs 1997–2004.

  • *

    * The OR for each continuous predictor was the result of an increase in quartiles of this predictor. Significance levels:

  • P < 0.01;

  • P < 0.05;

  • §

    § P < 0.001.