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Table 3 Subgroup analysis of preoperative bowel preparation use

From: Current practice patterns of preoperative bowel preparation in colorectal surgery: a nation-wide survey by the Chinese Society of Colorectal Cancer

   P value
MBP alone Enema alone MBP + OAP MBP + OAP + enema Other
Age
 < 40 years 101 16 22 51 7 0.032
 40–50 years 60 2 27 27 5
 > 50 years 12 2 6 3 0
Working experience
 < 10 years 55 8 8 24 3 0.128
 10–20 years 76 9 26 36 8
 > 20 years 42 3 21 21 1
Hospital setting
 General 148 16 49 72 10 0.738
 Specialized 25 4 6 9 2
Hospital volume
 < 500 beds 10 6 13 33 1 < 0.001
 500–1000 beds 35 2 20 28 2
 1000–1500 beds 35 3 7 10 5
 > 1500 beds 93 9 15 10 4
Colonic resections per year
 < 100 61 11 40 62 7 < 0.001
 100–200 34 4 6 15 3
 > 200 78 5 9 4 2
Rectal resections per year
 < 100 70 11 41 64 8 < 0.001
 100–200 44 3 6 15 2
 > 200 59 6 8 2 2
Resection performed laparoscopically or robotically
 < 30% 20 3 16 35 2 < 0.001
 30–50% 24 5 12 17 4
 > 50% 129 12 27 29 6
  1. MBP mechanical bowel preparation, OAP oral antibiotics preparation