Table 2.

CTs performed and potentially important findings proportions, at the time of examination and re-evaluation, and by shift

Variable	Time of examination	p value	Re-evaluation	p value
All shifts, n (%)
CT	312 (100)		312 (100)
PIF	38 (12.2)	<0.001a	85 (27.2)
No PIF	274 (87.8)		227 (72.8)
Morning shift, n (%)
CT	196 (100)	0.331b	196 (100)	0.080b
PIF	20 (10.2)		46 (23.5)
No PIF	176 (89.8)		150 (76.5)
Afternoon shift, n (%)
CT	98 (100)	0.331b	98 (100)	0.080b
PIF	16 (16.3)		31 (31.6)
No PIF	82 (83.7)		67 (68.4)
Overnight shift, n (%)
CT	18 (100)	0.331b	18 (100)	0.080b
PIF	2 (11.1)		8 (44.4)
No PIF	16 (88.9)		10 (55.6)

PIF, potentially important incidental finding.

^aMcNemar test.

^bFisher's exact test.