Table 2

Unadjusted and adjusted analysis of HbA1c and all-cause admission to hospital

UnadjustedAdjusted
OR (95% CI)SEOR (95% CI)SE
Male0.867 (0.812–0.926)0.0290.746 (0.697–0.798)0.026
Age (years)*1.007 (1.005–1.009)0.0011.002 (1.000–1.005)0.001
Previous vascular admission3.772 (3.392–4.194)0.2043.111 (2.782–3.479)0.177
Creatinine (µmol/L)*1.009 (1.008–1.010)0.0001.009 (1.008–1.010)0.000
BMI (kg/m2)*0.996 (0.991–1.002)0.0030.989 (0.983–0.995)0.003
Diabetes duration (years)*1.005 (1.003–1.008)0.0010.989 (0.986–0.992)0.002
HbA1c (mean of decile values)
 Decile 1 (mean 6.5)1.382 (1.219–1.567)0.0891.306 (1.145–1.489)0.088
 Decile 2 (mean 7.4)1.183 (1.048–1.336)0.0731.149 (1.022–1.291)0.068
 Decile 3 (mean 7.8)ReferenceReferenceReferenceReference
 Decile 4 (mean 8.2)1.382 (0.965–1.328)0.0961.401 (1.218–1.611)0.099
 Decile 5 (mean 8.5)1.438 (1.295–1.596)0.0771.423 (1.289–1.567)0.076
 Decile 6 (mean 8.9)1.622 (1.452–1.812)0.0921.664 (1.489–1.861)0.095
 Decile 7 (mean 9.2)2.074 (1.862–2.310)0.1142.116 (1.904–2.351)0.114
 Decile 8 (mean 9.7)1.514 (1.358–1.688)0.0841.506 (1.350–1.679)0.084
 Decile 9 (mean 10.4)1.801 (1.613–2.011)0.1011.836 (1.644–2.050)0.103
 Decile 10 (mean 12.0)2.796 (2.505–3.120)0.1562.905 (2.599–3.247)0.165
  • *Per 1 unit increase;

  • †mean of any values recorded between January 2005/date of diagnosis and December 2007/date of death;

  • ‡multivariate analysis results for model including all factors in table.