Supply and quality of colonoscopy according to the characteristics of gastroenterologists in the French population-based colorectal-cancer screening program

Table 7 Multivariate analysis of the relationship between each dependent variable (binary variables 0/1: Screening colonoscopy performed beyond 7-mo; Serious adverse events, Yield of neoplasm at screening colonoscopy) and the predictive factors

Characteristics of the cohort of gastroenterologists	Colo performed beyond a 7-mo risk analysis		Serious adverse events risk analysis		Neoplasms risk analysis
	ORa, 95%CI	P1	ORa, 95%CI	P1	ORa, 95%CI	P1
Annual Nb of Colo (Ref: 1 Colo)
2-30	0.7 [0.6; 1.0]	0.002	2.5 [0.3; 18.2]	0.37	0.9 [0.7; 1.1]	0.41
> 30	0.7 [0.3; 0.9]	0.008	2.9 [0.9; 23.0]	0.05	0.8 [0.6; 1.1]	0.32
Place of S-colo performance (Ref: Clinic)
Private hospital	1.2 [0.9; 1.6]	0.18	0.7 [0.3; 1.8]	0.47	1.1 [0.9; 1.3]	0.41
Public hospital	2.1 [1.3; 3.6]	0.001	1.6 [0.3; 8.7]	0.60	1.1 [0.8; 1.4]	0.20
Density of GE (Ref: Low)
Average	0.9 [0.8; 1.0]	0.05	1.2 [0.6; 2.2]	0.59	1.0 [0.9; 1.1]	0.76
High	1.0 [1.0; 1.2]	0.28	1.2 [0.6; 2.3]	0.65	0.9 [0.8; 1.0]	0.04
Annual Nb of S-colo locations (Ref: 1 location)
≥ 2 locations	1.1 [0.8; 1.5]	0.11	1.6 [0.5; 4;4]	0.41	1.0 [0.8; 1.3]	0.84
Residence of the patient (Ref: Colonoscopy’s supply municipality)
Other municipality in Colonoscopy’s supply department	1.0 [0.9; 1.0]	0.30	1.0 [0.5; 2.1]	0.97	1.0 [0.9; 1.0]	0.31
Other departments in IDF	1.2 [1.1; 1.3]	< 10-3	1.2 [0.3; 5.2]	0.81	0.9 [0.8; 1.0]	0.13
Age (yrs) of the patients (Ref: 50-54 yr)
55-59	0.9 [0.8; 1.0]	0.03	1.6 [1.0; 2.6]	0.04	1.3 [1.2; 1.4]	< 10-3
60-64	0.8 [0.7; 0.9]	0.001	2.0 [1.2; 3.1]	0.006	1.6 [1.5; 1.6]	< 10-3
65-69	0.7 [0.7; 0.8]	< 10-3	1.9 [1.2; 3.0]	0.01	1.7 [1.6; 1.8]	< 10-3
≥ 70	0.7 [0.6; 0.8]	0.003	2.1 [1.3; 3.4]	0.002	1.7 [1.6; 1.8]	< 10-3
Period (Ref.: gFOBT)
FIT	1.2 [1.1; 1.2]	< 10-3	0.8 [0.4; 1.5]	0.11	1.6 [1.5; 1.7]	< 10-3
STOP-FIT	2.4 [2.1; 2.6]	< 10-3	0.8 [0.5; 1.3]	0.27	1.3 [1.1; 1.5]	< 10-3
COVID	2.0 [1.8; 2.2]	< 10-3	0.5 [0.3; 0.9]	0.02	1.1 [1.0; 1.3]	0.08

¹P > |z|.

95%CI: 95% confidence interval; Colo: Screening colonoscopy; FIT: Fecal immunochemical test; GE: Gastroenterologist; gFOBT: Guaiac fecal occult blood test; IDF: Ile-De-France; OR_a: Adjusted odds-ratio.