Table 3.

Predictors of polyp detection, adenoma detection, advanced adenoma detection

Univariate analysis	OR	95%CI	P-value	Multivariate analysis	OR	95%CI	P-value
Polyp detection
Male sex	2.5	1.8-3.5	< 0.001	Male sex	2.4	1.5-41	0.001
Older age	1.004	1.02-1.05	< 0.001	Older age	1.04	1.02-1.0	< 0.001
Aspirin use	0.5	0.4-0.9	0.008	Positive FOBT	0.2	0.1-0.5	0.003
Hypercholesterolemia	0.6	0.4-0.96	0.031
Diabetes	0.6	0.4-0.9	0.02
Anaemia	1.7	1.1-2.7	0.03
Positive FOBT	0.3	0.2-0.5	< 0.001
BMI	1.05	1.01-1.09	0.02
Smoking	0.65	0.43-0.96	0.03
Birthplace	-0.64	-0.43-0.01	0.12
Adenoma detection
Male sex	2.3	1.4-3.8	0.001	Male sex	2.0	1.2-3.4	0.01
Older age	1.02	1.01-1.04	0.01	Older age	1.02	1.003-1.04	0.03
NSAID use	3.4	1.2-9.5	0.02	Positive FOBT	0.2	0.1-0.6	0.002
Positive FOBT	0.2	0.1-0.5	0.001
Birthplace	0.02	-0.37-0.04	0.94
Advanced adenoma detection
Male sex	2.7	1.5-4.8	0.001	Male sex	2.3	1.2-4.2	0.008
Older age	1.04	1.02-1.06	< 0.001	Rectal bleeding	0.4	0.2-0.7	0.002
Rectal bleeding	0.5	0.3-0.8	0.008	Positive FOBT	0.1	0.1-0.3	< 0.001
Positive FOBT	0.2	0.1-0.4	< 0.001
Birthplace	-0.01	-0.03-0.01	0.21

FOBT: Faecal occult blood test; BMI: Body mass index.