Acceptance on colorectal cancer screening upper age limit in South Korea

Table 2 Logistic regression for factors associated with acceptance of an upper age limit for colorectal cancer screening at 80 years (n = 1992)

Variable	Stop CRC screening at 80 yr
	Univariate		Multivariate
	cOR	95%CI	aOR	95%CI
Age group
50-59	1.00		1.00
60-69	1.12	0.87-1.45	1.22	0.92-1.64
70-74	0.61	0.44-0.85	0.72	0.47-1.11
Sex
Male	1.00		1.00
Female	0.72	0.57-0.9	0.86	0.59-1.24
Residential region
Rural	1.00		1.00
Urban	1.32	0.95-1.82	1.34	0.95-1.91
Metropolitan	2.01	1.44-2.81	1.86	1.29-2.68
Education
No formal/Elementary school	1.00		1.00
Middle/High school	2.38	1.66-3.41	1.55	1.00-2.39
College or more	2.10	1.37-3.22	1.28	0.74-2.21
Occupation status
Employed	1.00
Unemployed/Housewife	0.99	0.78-1.25
Household monthly income (USD)
< 3000	1.00		1.00
3000-5000	1.34	1.04-1.73	1.04	0.76-1.42
> 5000	1.20	0.87-1.67	0.97	0.64-1.47
Marital status
Living without spouse	1.00		1.00
Living with spouse	1.65	1.05-2.58	1.21	0.74-1.98
CRC screening experiences
Never	1.00		1.00
FOBT only	0.37	0.26-0.53	0.50	0.34-0.75
Colonoscopy only	0.37	0.25-0.57	0.49	0.31-0.77
Both FOBT and colonoscopy	0.26	0.18-0.38	0.33	0.22-0.50
Other type of cancer screening in NCSP
No	1.00		1.00
Yes	0.32	0.21-0.48	0.55	0.34-0.87
Family history of cancer
No	1.00		1.00
Yes	0.62	0.48-0.80	0.66	0.50-0.87
Lifetime smoking
Never or < 5 packs	1.00		1.00
More than 5 packs	1.45	1.13-1.86	1.38	0.95-2.02
Drinking within 1 yr
Never	1.00		1.00
Sometime	1.37	1.06-1.79	1.06	0.79-1.41
Frequently	1.42	1.02-1.97	0.87	0.59-1.3
Exercise
Never	1.00		1.00
1-2 d per week	1.52	1.09-2.12	1.37	0.97-1.95
> 3 d per week	1.29	0.99-1.69	1.42	1.07-1.89

cOR: Crude odds ratio; aOR: Adjusted odds ratio; CRC: Colorectal cancer; FOBT: Fecal occult blood test; NCSP: National Cancer Screening Program.