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Table 1 Pre-operative characteristics and operative findings, according to univariate analysis

From: Inappropriate manipulation and drainage exacerbate post-operative pain and prolong the hospital stay after laparoscopic appendectomy for pediatric complicated appendicitis

Group

Non-drain (N = 86)

Penrose drain (N = 19)

JP drain (N = 16)

p value†

Age (yrs.)

11.5 ± 3.59

11.0 ± 3.92

9.3 ± 3.64

0.077

Male: female

56:30

13:6

9:7

0.735

Body weight

43.27 ± 17.08

43.39 ± 21.16

34.49 ± 15.53

0.181

WBC (1000 μ/dL)

17.62 ± 5.77

17.28 ± 5.67

13.55 ± 6.44

0.091

Band (%)

0.63 ± 1.41

0.9 ± 1.39

2.53 ± 9.47

0.739

Seg. (%)

83.75 ± 6.02

84.56 ± 4.77

79.89 ± 14.52

0.872

CRP

102.51 ± 88.19

140.67 ± 127.61

128.45 ± 108.08

0.707

Operation finding

 Diffuse purulent ascites

48 (55.81)

14 (73.68)

13 (81.25)

0.082

 Fecalith

54 (62.79)

10 (53.63)

9(56.25)

0.671

 Abscess formation

45 (52.33)

8 (42.11)

6 (37.50)

0.452

Operation time (min)

107.0 ± 45.1

130.2 ± 50.0

91.9 ± 29.4

0.060

  1. WBC white blood cell count, Seg. segment percent of WBC, Band band form percent of WBC, CRP serum C-reactive protein, JP drain Jackson-Pratt drain with vacuum bulb
  2. *p value < 0.05 indicate statistical significance among three group
  3. †Comparison among JP drain group, Penrose drain group, and non-drain group