Table 2 Risk of HAI in relation to age, sex, underlying disease and healthcare risk factors among patients with surgical care and without

HAI (%/)***

Total

RR (95% CI)

ARR(95% CI)

HAI (%)

Total

RR(95%CI)

ARR(95% CI)

  < 18

20(33.33)

60

20(27.40)

73

 18–30

28(13.53)

207

0.41(0.25,0.67)*

0.54(0.32,0.93)*

19(15,45)

123

0.56(0.32,0.98)

0.61(0.34,1.07

 31–45

25(22.94)

109

0.69(0.42,1.13)

0.94(0.56,1.55)

27(18.24)

148

0.67(0.40,1.10)

0.54(0.31,0.93)

  > 45

26(35.14)

74

1.05(0.66,1.69)

1.07(0.66,1.46)

7(5.56)

126

0.20(0.09,0.46

0.22(0.10,0.48)

 Male

52(30.95)

168

1.85 (1.32,2.62)*

1.44(0.97,2.14)

32(13.79)

232

0.80, (0.52,1.22)

0.97(0.64,1.49)

 Female

47(16.67)

282

41(17.23)

238

 Yes

20(44.44)

45

2.28(1.56,3.34)*

1.65(1.07,2.54)

6(23.08)

26

1.53(0.73,3.19)

 No

79(19.51)

405

67(15.09)

444

Type of surgery

NA

 Elective

60(27.03)

222

1.58 (1.10, 2.26)*

0.98(0.65,1.46)

 Emergency

39(17.11)

228

Type of wound #

NA

 Contaminated/ dirty

13(23.64)

55

1.30(0.77,2.22)

0.81(0.47,1.42)

 Clean contaminated

28(35.90)

78

1.98(1.35,2.89)*

1.28(0.85,1.94)

 Clean

56 (18.12)

309

 Yes

24(19.83)

121

0.87(0.58,1.31)

2(40)

5

2.62(0.87,7.82)

 No

75(22.80)

329

71(15.27)

465

 Yes

2(16.67)

12

0.75(0.21,2.70)

3(75.00)

4

5.05(2.75,9.26)*

4.14(2.30,7.46)

 No

97(22.15)

438

69(14.84)

465

 Yes

3(37.50)

8

1.72(0.69,4.29)

12(35.29)

34

2.52(1.51,4.20)*

1.99(1.06,3.74)

 No

96(21.72)

442

61(13.99)

436

 Yes

48(19.12)

251

0.74(0.53,1.05)

17(28.33)

60

2.07(1.29,3.32)*

1.28(0.76,2.14)

 No

51(25.63)

199

56(13.66)

410

 Yes

80(21.45)

373

0.87(0.56,1.34)

30(20.13)

149

1.50(0.98,2.29)

 No

19(24.68)

77

43(13.40)

321

 Yes

3(9.68)

31

0.42(0.14,1.25)

5(25.00)

20

1.67(0.76,3.69)

 No

96(22.91)

419

67(14.32)

449

Preoperative prophylaxis#

NA

 Given

88(22.11)

398

0.98(0.56,1.71)

 Not given

11(22.45)

49

 Yes

9(13.85)

65

0.59(0.31,1.11)

44(24.58)

179

2.54(1.64,3.93)*

2.01(1.33,3.04)

 No

90(23.38)

385

28(9.66)

290