Outcome of non-variceal acute upper gastrointestinal bleeding in relation to the time of endoscopy and the experience of the endoscopist: A two-year survey

Table 4 OR and corresponding 95%CI for patients treated by less vs well experienced endoscopists and for patients treated between 5 p.m. and 8 a.m. compared to those treated between 8 a.m. and 5 p.m. according to selected outcomes

	Low vs high experience of endoscopist		8 a.m.-5 p.m. vs 5 p.m.-8 a.m. time period
	OR1 (95%CI)	OR2 (95%CI)	OR3 (95%CI)	OR4 (95%CI)
Rebleeding
Yes	4.47	1.33	0.94	1.40
No	(2.11-9.47)	(0.46-3.83)	(0.38-2.30)	(0.51-3.83)
Number of blood units
transfused after endoscopy
≥3	6.90	5.07	0.89	0.92
<3	(2.80-16.98)	(1.89-13.61)	(0.31-2.56)	(0.32-2.70)
Need for surgery
Yes	2.36	1.67	1.85	1.99
No	(0.74-7.50)	(0.43-6.41)	(0.54-6.37)	(0.56-7.04)
Mortality
Dead	0.47	0.64	1.96	1.92
Alive	(0.17-1.34)	(0.20-2.11)	(0.80-4.78)	(0.79-4.69)
Length of hospital stay
≥13 d	0.88	1.66	1.51	0.52
<13 d	(0.51-1.53)	(0.85-3.28)	(0.84-2.72)	(0.27-1.01)

¹Estimates from multiple logistic regression after adjustment for age, sex, Rockall and Forrest score, blood transfusion, and time period. Reference category is highly experienced endoscopists.

²As in 1 after further adjustment for appropriateness. Reference category is highly experienced endoscopists^{. 3}Estimates from multiple logistic regression after adjustment for age, sex, Rockall and Forrest score, blood transfusion,and experience of endoscopists. Reference category is 5 p.m.-8 a.m.

⁴As in 3 after further adjustment for appropriateness. Reference category is 5 p.m.-8 a.m.