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

Table 5 Factors influencing length of stay among delayed procedures

Factor	Mean LOS, days (95%Cl)	P value
Age
< 50	32.8 (18.4-58.5)	Ref
50-75	33.5 (19.4-58.2)	0.828
> 75	28.8 (16.6-49.9)	0.297
Sex
Male	31.1 (18.0-53.8)	Ref
Female	32.2 (18.4-56.2)	0.713
Ethnicity
Not Hispanic or Latino	32.0 (19.0-53.9)	Ref
Hispanic or Latino	40.3 (22.7-71.6)	0.111
Declined	24.5 (12.2-49.3)	0.269
Admission indication
No GI	57.7 (31.3-106.3)	Ref
Only GI	19.7 (11.4-34.2)	< 0.001
Both GI and non-GI (GI primary)	25.3 (14.6-43.8)	0.019
Both GI and non-GI (GI secondary)	34.7 (19.6-61.7)	< 0.001
On admission
No GI bleed	34.8 (20.5-59.1)	Ref
GI bleed	28.7 (16.1-51.4)	0.079
No other GI diagnosis1	28.5 (16.8-48.4)	Ref
Other GI diagnosis1	35.1 (19.6-62.8)	0.059
Planning extended bowel preparation	33.6 (18.1-62.4)	Ref
No delay	29.8 (17.8-49.7)	0.454
Holding anticoagulation/antiplatelets	38.6 (18.8-79.3)	Ref
No delay	25.9 (16.3-41.3)	0.141
Inadequate bowel preparation	32.7 (18.1-59.0)	Ref
No delay	30.7 (18.2-51.8)	0.609
Pending medical optimization delay	36.0 (19.8-65.5)	Ref
No delay	27.8 (16.6-46.5)	0.037
Change in clinical recommendations delay	43.3 (24.0-78.1)	Ref
No delay	23.1 (13.7-38.9)	< 0.001
EGD prior to colonoscopy delay	26.7 (14.4-49.6)	Ref
No delay	37.5 (22.0-63.8)	0.077
Pending INR/platelets optimization delay	46.6 (23.3-93.3)	Ref
No delay	21.5 (13.3-34.6)	0.001
Required subsequent colonoscopy	47.2 (24.8-89.9)	Ref
No subsequent colonoscopy	21.2 (12.5-36.0)	< 0.001
Weekend scheduling	32.8 (18.6-58.1)	Ref
No delay	30.5 (17.7-52.5)	0.519
Weekday scheduling/failure to initiate clear liquid diet	33.2 (18.2-60.6)	Ref
No delay	30.2 (18.2-50.2)	0.43

¹Gastrointestinal diagnosis that is not anemia or gastrointestinal bleed.

Ref: Reference; LOS: Length of stay; GI: Gastrointestinal; INR: International normalised ratio; EGD: Esophagogastroduodenoscopy.