Table 2 Subgroup analysis of primary outcomes in patients with IAIs who used IOPL compared with patients who did not

1. Mortality

Type of population

 Child

0

0/0

0

NA

NA

 Adult

3

22/373

5.9

0.91 (0.43–1.91)

Irrigation volume^a

 < 3 L

1

2/286

0.7

0.31 (0.02, 6.39)

0.47

 ≥ 3 L

2

20/87

23.0

0.97 (0.45, 2.09)

Country income level

 HIC

1

8/29

27.6

0.93 (0.29, 3.03)

0.95

 LMIC

2

14/344

4.1

0.89 (0.34, 2.31)

2. Intra-abdominal abscess

Type of population

 Child

2

42/306

14.1

0.98 (0.57, 1.70)

0.92

 Adult

7

101/926

10.9

1.02 (0.66, 1.58)

Irrigation volume^a

 < 3 L

5

91/807

12.0

0.97 (0.67, 1.41)

0.90

 ≥ 3 L

4

52/425

12.2

0.90 (0.30, 2.67)

Country income level

 HIC

5

77/542

14.2

0.98 (0.66, 1.46)

0.88

 LMIC

4

66/690

9.6

0.91 (0.39, 2.12)