Table 2.

Prevalence ratios (PRs) estimated by Poisson multiple regression with robust variance for not having had the faecal occult blood test.

Explanatory Variable	PR	95% CI	p Value
Autonomous community
Basque Country	1
Extremadura	3.039	(2.583–3.576)	<0.001
Ceuta–Melilla	3.001	(2.526–3.565)	<0.001
Asturias	2.993	(2.535–3.533)	<0.001
Andalusia	2.974	(2.531–3.495)	<0.001
Madrid	2.879	(2.443–3.393)	<0.001
Castile La Mancha	2.785	(2.355–3.294)	<0.001
Galicia	2.679	(2.266–3.167)	<0.001
Catalonia	2.563	(2.174–3.023)	<0.001
Balearic Islands	2.494	(2.094–2.970)	<0.001
Murcia	2.479	(2.082–2.950)	<0.001
Aragon	2.403	(2.019–2.860)	<0.001
Canary Islands	2.187	(1.828–2.617)	<0.001
Cantabria	2.020	(1.673–2.438)	<0.001
La Rioja	1.993	(1.631–2.435)	<0.001
Valencian Community	1.883	(1.578–2.248)	<0.001
Castile–León	1.802	(1.496–2.170)	<0.001
Navarre	1433	(1.144–1.794)	0.002
Age
65–69 years	1
60–64 years	0.985	(0.934–1.038)	0.562
55–59 years	0.998	(0.950–1.049)	0.943
50–54 years	1.087	(1.036–1.141)	0.001
Body mass index
Normal	1
Overweight	0.986	(0.951–1.022)	0.439
Obesity	0.982	(0.939–1.028)	0.440
Don’t know/no answer	1.097	(1.028–1.170)	0.005
Sex (woman)	1.018	(0.986–1.051)	0.265
Place of birth (outside Spain)	1.110	(1.057–1.165)	<0.001
Flu vaccine(no)	1.094	(1.043–1.148)	<0.001
Colonoscopy (no)	1.491	(1.399–1.590)	<0.001
Ultrasound in last year (no)	1.090	(1.039–1.144)	<0.001
Primary care visit in last month (no)	1.076	(1.037–1.116)	<0.001

Area under the curve = 0.781 (95% CI 0.770–0.792), N = 7568; n (no FOBT) = 5377.