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. 2013 Feb 19;185(3):E156–E166. doi: 10.1503/cmaj.120095

Table 1:

Patient-level analysis of compliance to guidelines for the management of nonvariceal upper gastrointestinal bleeding

Guideline Before intervention, % (no. of patients) After intervention, % (no. of patients) Intracluster correlation coefficient Percentage difference (95% CI)


Experimental group Control group Experimental group Control group
Primary outcome

Endoscopic hemostasis followed by high-dose IV PPI 13.2 (20/152) 7.1 (11/155) 9.8 (14/143) 4.8 (6/124) 0.04 −5.0 (−12.0 to 2.0)

Secondary outcomes

Injection and/or thermal coagulation without clips and bolus IV PPI followed by infusion for 72 h for high-risk ulcers 8.6 (13/152) 5.2 (8/155) 6.3 (9/143) 4.8 (6/124) 0.07 −1.5 (−8.1 to 5.2)

Injection and/or thermal coagulation with clips and bolus IV PPI followed by 8 mg/h infusion for 72 h and no oral PPI. If the patient received a pre-endoscopy infusion, the absence of bolus IV PPI was ignored 69.1 (105/152) 58.7 (91/155) 57.3 (82/143) 62.9 (78/124) 0.18 5.6 (−12.7 to 23.8)

Injection and/or thermal coagulation with clips and pre-endoscopy IV bolus PPI plus 80-mg bolus IV PPI followed by 8 mg/h infusion for 72 h after endoscopy and no oral PPI 1.3 (2/152) 1.9 (3/155) 1.4 (2/143) 0.8 (1/124) −0.05 −0.6 (−2.5 to 1.3)

Injection and/or thermal coagulation upon endoscopy for high-risk ulcers with clips alone 81.6 (124/152) 74.8 (116/155) 72.7 (104/143) 72.6 (90/124) 0.35 −0.1 (−20.4 to 20.1)

Injection and/or thermal coagulation without clips for high-risk ulcers alone 49.3 (75/152) 56.1 (87/155) 50.4 (72/143) 46.8 (58/124) 0.33 −3.6 (−25.4 to 18.2)

80-mg IV bolus PPI followed by 8 mg/h PPI infusion for 72 h after endoscopy and no oral PPI 15.3 (27/177) 10.0 (17/170) 13.6 (21/155) 15.9 (24/151) 0.27 2.3 (−12.1 to 16.8)

80-mg IV bolus PPI followed by 8 mg/h infusion for 72 h after endoscopy and no oral PPI. If patient received a pre-endoscopy infusion, the absence of bolus IV PPI afterward was ignored 82.5 (146/177) 80.0 (136/170) 81.3 (126/155) 89.4 (135/151) 0.06 8.1 (−1.4 to 17.6)

Pre-endoscopy bolus of PPI plus 80-mg bolus IV PPI followed by 8 mg/h infusion for 72 h after endoscopy and no oral PPI 1.1 (2/177) 1.8 (3/170) 1.9 (3/155) 9.3 (14/151) 0.35 7.3 (−2.9 to 17.5)

Use of validated scoring system based on a combination of clinical and endoscopic characteristics to stratify patients into low- and high-risk categories 0.0 (0/402) 0.2 (1/424) 1.9 (7/361) 0.0 (0/389) 0.19 −1.9 (−5.0 to 1.1)

Early endoscopy (in the first 24 h) with risk classification by clinical/endoscopic criteria 62.9 (253/402) 65.6 (278/424) 57.3 (207/361) 63.1 (245/388) 0.09 5.6 (−5.6 to 16.9)

No hemostasis for low risk lesion 88.9 (200/225) 93.7 (223/238) 94.2 (196/208) 89.0 (218/245) 0.13 −5.2 (−13.2 to 2.8)

Endoscopic hemostasis for adherent clot 87.9 (29/33) 88.0 (22/25) 80.7 (25/31) 80.8 (21/26) 0.09 0.1 (−22.9 to 23.1)

Endoscopic hemostasis for other active bleeding or visible vessel 85.9 (152/177) 83.3 (155/186) 93.5 (143/153) 86.1 (124/144) 0.06 −7.4 (−15.8 to 1.1)

Low-risk patients who received treatment 11.1 (25/225) 6.3 (15/238) 5.8 (12/208) 11.0 (27/245) 0.13 5.2 (−2.8 to 13.2)

Low-risk patients not given IV PPI bolus or infusion after endoscopy 61.8 (139/225) 59.2 (141/238) 56.3 (117/208) 64.1 (157/245) 0.05 8.0 (−2.9 to 18.9)

Note: CI = confidence interval, IV = intravenous, PPI = proton pump inhibitor.