. 2015 Jan 5;25(1):50–56. doi: 10.2188/jea.JE20140080

Table 5. Differences in rates of consecutive screening are related to the screening sites where the previous screening was performed.

	Clinic A	Other institutions	P-value
Free coupon in 2009
Subsequent screening within 2 years	22/88 (25%)^b	28/375^a (7%)^b	<0.001
Ordinary program in 2009
Subsequent screening within 2 years	13/32 (41%)^c	12/50^a (24%)^c	0.11

^aThe cases that required further diagnostic workups on initial screening were excluded.

^bP < 0.001 by Fisher’s exact test.

^cP = 0.07 by Fisher’s exact test.