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Table 4 Multivariable logistic regression and propensity score (PS) matchingb to investigate the effect of different bowel preparation types on primary and secondary outcomes

From: Impact of bowel preparation on elective colectomies for diverticulitis: analysis of the NSQIP database

 

Overall

NP (REF)

MBP

ABP

MBP + ABP

 

N

N

N

OR*

95% CI*

P-value*

N

OR*

95% CI*

P-value*

N

OR*

95% CI*

P-value*

SSI

1400

298

458

0.82

(0.70, 0.96)

0.015

62

0.69

(0.52, 0.92)

0.012

582

0.58

(0.50, 0.67)

 < 0.0001

(PS matching model b)

Matched sample

298/248

0.81

(0.68, 0.97)

0.024

65/62

0.95

(0.66, 1.37)

0.781

298/177

0.56

(0.46, 0.49)

 <0.0001

Anastomotic leaka

441

111

139

0.66

(0.51, 0.86)

0.002

19

0.56

(0.34, 0.93)

0.024

172

0.46

(0.36, 0.59)

 < 0.0001

(PS matching model b)

Matched sample

111/78

0.66

(0.49, 0.89)

0.006

33/19 

0.57 

(0.32, 1.00)

0.050 

111/62

0.52 

 (0.38, 0.72) 

 <0.0001

30-day mortality

34

10

12

0.61

(0.26, 1.44)

0.260

2

0.77

(0.17, 3.56)

0.737

10

0.32

(0.13, 0.79)

0.013

Wound dehiscence

101

25

38

0.80

(0.48, 1.33)

0.391

4

0.54

(0.19, 1.56)

0.253

34

0.42

(0.25, 0.70)

0.001

Infectious complication

316

60

87

0.79

(0.57, 1.11)

0.179

25

1.50

(0.93, 2.42)

0.101

144

0.77

(0.57, 1.05)

0.140

Pulmonary complication

131

30

40

0.70

(0.43, 1.13)

0.145

4

0.47

(0.16, 1.34)

0.158

57

0.59

(0.38, 0.93)

0.022

Cardiac complication

56

12

14

0.60

(0.27, 1.30)

0.194

1

0.29

(0.04, 2.23)

0.233

29

0.75

(0.38, 1.49)

0.417

Ileus

1200

231

378

0.89

(0.75, 1.06)

0.194

45

0.67

(0.48, 0.94)

0.019

546

0.73

(0.62, 0.85)

 < 0.001

LOS ≥ 4 days

9794

1599

3067

1.13

(1.02, 1.25)

0.021

421

0.80

(0.67, 0.95)

0.010

4707

0.78

(0.71, 0.85)

 < 0.0001

Reoperation

590

119

200

0.91

(0.72, 1.15)

0.419

25

0.72

(0.46, 1.12)

0.146

246

0.62

(0.50, 0.78)

 < 0.0001

Readmission

1216

227

376

0.90

(0.76, 1.08)

0.255

37

0.55

(0.38, 0.78)

0.001

576

0.77

(0.66, 0.91)

0.002

  1. Bold values are significant results with two-side P-values<0.05
  2. aInclude patients underwent anastomosis
  3. bOne-to-one greedy propensity score matching on age, race/ethnicity, ASA classification, history of congestive heart failure (CHF), weight loss (> 10% loss of body weight in the last 6 months), preoperative steroid use (Note: the sample size might be smaller due to the inability to find comparable observations on al matched variables)
  4. *Adjusted for demographic characteristics (age, race/ethnicity, sex, body mass index (BMI), smoking status), preoperative comorbidities (ASA classification, non-independent functional status, diabetes, hypertension, history of congestive heart failure (CHF), chronic obstructive pulmonary disease (COPD), weight loss (> 10% loss of body weight in the last 6 months), bleeding disorder, steroid use), and intraoperative conditions (resection type, wound classification, approach type, operative time > 3 h)
  5. LOS: length of total hospital stays (day)
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BMC Gastroenterology

ISSN: 1471-230X

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