Table 4.

Univariate analysis of major complications

Factors	Major complications, % (n)	Univariate model
		OR (95% CI)	P-value
Sex
Men (n = 1721)	4.7 (81)	Reference	–
Women (n = 1110)	6.9 (77)	1.51 (1.10–2.10)	0.015
Age category (years)
≤44 (n = 899)	7.6 (68)	Reference	–
45–64 (n = 951)	4.8 (46)	0.62 (0.42–0.91)	0.016
65–74 (n = 662)	4.8 (32)	0.62 (0.40–0.96)	0.031
>74 (n = 319)	3.8 (12)	0.48 (0.26–0.89)	0.021
BMI category (kg/m2)
<24 (n = 715)	7.6 (54)	Reference	–
24–27 (n = 686)	5.5 (38)	0.72 (0.47–1.10)	0.130
28–29 (n = 513)	5.3 (27)	0.68 (0.42–1.10)	0.113
≥30 (n = 706)	4.4 (31)	0.56 (0.36–0.89)	0.013