Modifiable factors including weekend consultations are major contributors to inpatient colonoscopy delays

Table 4 Factors influencing length of stay among all procedures

Factor	Mean LOS, days (95%CI)	P value
Age
< 50	12.5 (10.6-14.7)	Ref
50-75	11.2 (9.6-13.0)	0.135
> 75	10.2 (8.5-12.2)	0.02
Sex
Male	11.6 (10.1-13.4)	Ref
Female	10.9 (9.3-12.7)	0.283
Ethnicity
Not Hispanic or Latino	11.5 (10.4-12.7)	Ref
Hispanic or Latino	11.2 (9.3-13.4)	0.762
Declined	11.1 (8.2-15.1)	0.833
Day of the week
Weekday consultation (Monday-Friday)	11.5 (10.1-13.2)	Ref
Weekend consultation (Saturday-Sunday)	11.0 (9.2-13.0)	0.477
Admission Indication
No GI	5.8 (5.0-6.7)	Ref
Only GI	21.1 (16.3-27.2)	< 0.001
Both GI and non-GI (GI primary)	8.1 (7.0-9.3)	< 0.001
Both GI and non-GI (GI secondary)	16.2 (13.4-19.6)	< 0.001
On admission
No GI bleed	12.4 (10.9-14.2)	Ref
GI bleed	10.2 (8.5-12.2)	0.01
No other GI diagnosis1	9.8 (8.5-11.2)	Ref
Other GI diagnosis1	13.0 (10.9-15.4)	< 0.001
Procedure status
Non-delayed	9.5 (8.1-11.0)	Ref
Delayed	13.4 (11.5-15.6)	< 0.001

¹Gastrointestinal diagnosis that is not anemia or gastrointestinal bleed.

Ref: Reference; LOS: Length of stay; GI: Gastrointestinal.