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. Author manuscript; available in PMC: 2018 Oct 1.

Published in final edited form as: Am J Obstet Gynecol. 2017 Jun 8;217(4):449.e1–449.e9. doi: 10.1016/j.ajog.2017.05.070

Table 4.

Residual risk factors for wound complications among those with all evidence based steps performed

Residual Risk Factor N=349	Wound Complication n=71 (20.3%)	aRR¹ (95% CI)
Unscheduled Cesarean n=131	36 (27.5%)	1.71 (1.12, 2.47)
Scheduled Cesarean n=218	35 (16.1%)	1.71 (1.12, 2.47)
Obese² n=233	48 (20.5%)	1.03 (0.63, 1.63)
Non-obese n=116	23 (20.0%)	1.03 (0.63, 1.63)
Tobacco use n=44	13 (29.6%)	1.46 (0.80, 2.42)
No Tobacco use n=305	58 (19.0%)	1.46 (0.80, 2.42)
Diabetes n=39	7 (18.0%)	0.83 (0.37, 1.69)
No Diabetes n=310	64 (20.7%)	0.83 (0.37, 1.69)
Chorioamnionitis n=6	2 (33.3%)	1.13 (0.23, 3.52)
No Chorioamnionitis n=343	69 (20.1%)	1.13 (0.23, 3.52)
Inexperienced Surgeon (<PGY 3)³ n=271	57 (21.0%)	0.80 (0.43, 1.39)
Experienced Surgeon n=78	14 (18.0%)	0.80 (0.43, 1.39)
Vertical Skin Incision n=3	1 (33.3%)	2.20 (0.28, 5.36)
Pfannenstiel Incision n=346	70 (20.2%)	2.20 (0.28, 5.36)

¹

Adjusted for all other risk factors in this column.

²

Obese defined as BMI ≥30 kg/m²

³

PGY 3 =postgraduate year 3.