Table 4.

Subgroup analyses for the association between diabetes and infection after hysterectomy

Variables		OR	95% CI	I2 (%)	No. studies	P for subgroup differences
Study design
	Retrospective	2.23	1.21–4.12	67.7	5	p < 0.001
	Prospective	1.78	1.28–2.47	0.0	3	p = 0.010
Infection type
	SSI	2.01	1.46–2.77	63.7	9	p < 0.001
	Pneumonia	2.87	1.69–4.89	20.2	2	p < 0.001
	UTI	1.47	1.23–1.74	0.0	3	p < 0.001
	Sepsis	2.79	1.36–5.74	61.1	2	p = 0.005
Regions
	America	2.66	2.04–3.47	0.0	4	p < 0.001
	Others	1.37	0.76–2.49	42.3	4	p = 0.295