Review of Subcutaneous Wound Drainage in Reducing Surgical Site Infections after Laparotomy

Table 2

Studies in which only the laparotomy data could not be extracted. Nonlaparotomy abdominal incisions were included.

Author	Year	Patients	Drain type	No drain				Drain				Chi-squared; 1 DF; 2-tailed
				Total	SSI	No SSI	% infec.	Total	SSI	No SSI	% infec.	Value; CI 0.05
Higson and Kettlewell [41]	1978	246	Open	126	11	115	8.7	120	19	101	15.8	0.089
Lubowski and Hunt [42]	1987	349	Closed suction	157	9	148	5.7	192	8	184	4.2	0.499