Psychological effects of colorectal cancer screening: Participants vs individuals not invited

Table 3 Number of participants scoring above the cut-off for a case of anxiety (≥ 8) at baseline and at 1-year follow-up in the different groups n (%)

Group			Anxiety at 1 yr follow up		P value1	P value2
			Non anxiety	Anxiety case
Control group	Before screening	Non anxiety	1574 (82.5)	91 (4.8)
		Anxiety case	87 (4.5)	57 (8.2)	0.82	Ref.
Screening	Before screening	Non anxiety	3660 (82.9)	250 (5.7)
		Anxiety case	164 (3.6)	343 (7.8)	< 0.01	0.11
FS screening	Before screening	Non anxiety	1683 (84.0)	112 (5.6)
		Anxiety case	61 (3.0)	149 (7.4)	< 0.01	0.06
FIT screening	Before screening	Non anxiety	1977 (82.0)	138 (5.7)
		Anxiety case	103 (4.3)	194 (8.0)	0.08	0.32
Positive screening result	Before screening	Non anxiety	292 (84.0)	16 (4.6)
		Anxiety case	11 (3.2)	28 (8.2)	0.49	0.58
Negative screening result	Before screening	Non anxiety	3368 (82.8)	234 (5.7)
		Anxiety case	153 (3.8)	315 (7.7)	< 0.01	0.11

¹The change observed within the group is statistically significant;

²The change observed within the group is significantly different compared to the observed change within the control group. FS: Flexible sigmoidoscopy; FIT: Faecal immunochemical test.