Table 4.

Comparisons of Complications across Datasets for Patients with Complete Demographic/Clinical Data

	Overall			Breast Reductions			Prosthetic Reconstruction			Autologous Reconstruction			Free Flap			Pressure Ulcer Repair
	NSQIP-WM	TOPS-WM	P	NSQIP-WM	TOPS-WM	P	NSQIP-WM	TOPS-WM	P	NSQIP-WM	TOPS-WM	P	NSQIP-WM	TOPS-WM	P	NSQIP-WM	TOPS-WM	P
N	79,399	29,177		18,463	15,591		43,081	11,315		12,541	1853		4285	208		1029	210
Medical complications	1758 (2.2)	79 (0.3)	<0.001	118 (0.6)	17 (0.1)	<0.001	603 (1.4)	47 (0.4)	<0.001	325 (2.6)	9 (0.5)	<0.001	555 (13.0)	2 (1.0)	<0.001	157 (15.3)	4 (1.9)	<0.001
Dehiscence	798 (1.0)	1481 (5.1)	<0.001	126 (0.7)	863 (5.5)	<0.001	261 (0.6)	372 (3.3)	<0.001	194 (1.5)	194 (10.5)	<0.001	181 (4.2)	12 (5.8)	0.369	36 (3.5)	40 (19.0)	<0.001
Mortality	85 (0.1)	1 (0.0)	<0.001	3 (0.0)	1 (0.0)	0.739	5 (0.0)	0 (0.0)	NA	4 (0.0)	0 (0.0)	NA	40 (0.9)	0 (0.0)	NA	33 (3.2)	0 (0.0)	NA
Venous thromboembolism	411 (0.5)	34 (0.1)	<0.001	35 (0.2)	17 (0.1)	0.079	164 (0.4)	12 (0.1)	<0.001	127 (1.0)	5 (0.3)	0.003	77 (1.8)	0 (0.0)	NA	8 (0.8)	0 (0.0)	NA
Return to OR	5225 (6.6)	908 (3.1)	<0.001	397 (2.2)	222 (1.4)	<0.001	2623 (6.1)	512 (4.5)	<0.001	1332 (10.6)	145 (7.8)	<0.001	772 (18.0)	23 (11.1)	0.013	101 (9.8)	6 (2.9)	0.002
Surgical infection	2406 (3.0)	601 (2.1)	<0.001	419 (2.3)	243 (1.6)	<0.001	976 (2.3)	281 (2.5)	0.181	535 (4.3)	64 (3.5)	0.116	413 (9.6)	9 (4.3)	0.015	63 (6.1)	4 (1.9)	0.022

NA, not available; WM, without missing.