Table 4.

Effective factors for promoting participation in colorectal cancer screening

	40–49 years				50–59 years				60–69 years				≥ 70 years
	Marginal effect	95%CI		P-value	Marginal effect	95%CI		P-value	Marginal effect	95%CI		P-value	Marginal effect	95%CI		P-value
Personal invitation letters	0.055	0.020	0.091	0.002	0.061	0.023	0.099	0.002	0.065	0.021	0.110	0.004	0.056	0.015	0.096	0.007
Household invitation letters	0.063	0.023	0.103	0.002	0.070	0.026	0.113	0.002	0.088	0.037	0.139	0.001	0.055	0.007	0.102	0.023
Home visits by community nurses	0.088	0.025	0.151	0.006	0.101	0.033	0.169	0.004	0.103	0.018	0.187	0.017	0.099	0.024	0.175	0.010
Screenings at medical offices	−0.021	−0.057	0.014	0.234	−0.023	−0.061	0.015	0.228	−0.010	−0.055	0.034	0.643	0.025	−0.016	0.065	0.230
Free screenings for all age groups	0.036	−0.022	0.094	0.219	0.039	−0.024	0.101	0.224	0.040	−0.033	0.113	0.280	0.035	−0.029	0.100	0.281
Total number of municipalities	1666				1666				1666				1666
Log likelihood	− 512.74				− 566.53				− 688.6				− 617.9
AIC	0.6263				0.6909				0.8375				0.7526

Adjusted by total population (≥ 30,000 or < 30,000), total number of medical facilities per 1000 individuals aged 40 years and older, and proportion of women

Boldface indicates statistical significance at P < 0.05