Table 3. Adjusted estimates of the post-operative complications.

Predictor variables		Odds ratio	95% confidence interval	P value
DM		1.29	0.96–1.73	0.07
Non-diabetes		Referent group
Diabetes	HbA1c (%) < 7.0	0.71	0.29–0.74	0.12
	7.0 ≤ HbA1c < 8.0	0.89	0.20–0.99	0.06
	8.0 ≤ HbA1c	1.73	0.28–1.87	0.51