Table 5.

Multivariate analysis of variables affecting the likelihood of seroma development

	Adjusted OR (95% CI)	P-value
Intervention		0.016
Ultrasonic dissection	1 (reference)
Electrocautery	3.252 (1.242–8.516)
Age	1.053 (0.986–1.125)	0.123
Weight of specimen	1.002 (0.999–1.005)	0.198
BMI	1.025 (0.831–1.265)	0.816
General surgeon		0.174
A	1 (reference)
B	0.497 (0.181–1.363)
Reconstruction type		0.143
Direct-to-implant	1 (reference)
Tissue expander	2.033 (0.787–5.252)

OR, odds ratio; CI, confidence interval; BMI, body mass index.