Table 2

Descriptive characteristics of respondents

Before interventionDuring interventionP value comparing SSIs for before and during intervention
Total (n=446)SSI (n=40)Total (n=582)SSI (n=31)
Mean age in years(95% CI)46 (45-48)41 (40-43)43 (41-44)44 (42 – 47)
Sex of neonates
 Male171 (38.0)9 (22.5)256 (44.0)12 (38.8)p=0.083
 Female275 (62.0)31 (77.5)326 (56.0)19 (61.2)
Wound class
 Clean289 (64.7)10 (25.0)319 (54.8)7 (22.6)
 Clean contaminated30 (6.7)3 (7.5)66 (11.3)2 (6.5)p=0.172
 Contaminated57 (12.7)9 (22.5)144 (24.7)12 (38.7)
 Dirty70 (15.9)18 (45.0)53 (9.1)10 (32.2)
Procedure
 Thyroid surgery40 (9.0)3 (7.5)40 (6.9)2 (6.5)
 Breast surgery64 (14.3)7 (17.5)187 (32.1)7 (22.6)
 Herniorrhaphy88 (19.7)11 (27.5)116 (19.9)5 (16.1)
 Gall bladder surgery5 (1.1)2 (5.0)12 (2.1)
 Bile duct/liver surgery3 (0.7)7 (1.2)
 Small bowel surgery8 (1.8)2 (5.0)5 (0.9)1 (3.1)p=0.295
 Appendix surgery69 (15.5)6 (15.0)86 (14.8)5 (16.1)
 Colon surgery16 (3.6)5 (12.5)9 (1.5)3 (9.7)
 Rectal surgery8 (1.8)1 (2.5)7 (1.2)2 (6.5)
 Laparotomy*47 (10.5)1 (2.5)101 (17.3)3 (9.7)
 Limb amputation98 (22.0)2 (5.0)12 (2.1)3 (9.7)
  • *Laparotomy other than above abdominal surgeries.

  • SSI, surgical site infection.