Table 4. Factors Associated With Colorectal Cancer Screening Completion in Minnesota, Iowa, and Wisconsin.

Variable	OR (95% CI)	P Value
Age, y
50-64	1 [Reference]	NA
65-74	1.41 (1.37-1.45)	<.001
≥75	1.22 (1.13-1.31)	<.001
ADI quintile
1	1 [Reference]	NA
2	0.90 (0.87-0.94)	<.001
3	0.81 (0.78-0.85)	<.001
4	0.69 (0.66-0.73)	<.001
5	0.57 (0.53-0.61)	<.001
Rural status
Urban	1 [Reference]	NA
Rural	0.93 (0.91-0.96)	<.001
Highly rural	0.94 (0.86-1.03)	.20
Charlson Comorbidity Index score
0	1 [Reference]	NA
1	1.07 (1.04-1.11)	<.001
2	1.29 (1.23-1.35)	<.001
3	1.19 (1.11-1.26)	<.001
≥4	1.11 (1.04-1.17)	<.001
Race
White	1 [Reference]	NA
Nonwhite	0.46 (0.44-0.49)	<.001
Sex
Male	1 [Reference]	NA
Female	1.16 (1.13-1.19)	<.001

Abbreviations: ADI, area deprivation index (higher ADIs indicate greater deprivation); NA, not applicable; OR, odds ratio.