Handling incidental findings in neuroimaging research in Japan: current state of research facilities and attitudes of investigators and the general population

Table 2 Basic characteristics

		PIs n =23 (%)	Investigators n =69^b(%)	General population n =500 (%)
Sex	Male	22 (95.7)	65 (94.2)	250 (50.0)
Sex	Female	1 (4.4)	4 (5.8)	250 (50.0)
Age range (years)	20–29	0 (0)	0 (0)	100 (20.0)
	30–39	2 (8.7)	14 (20.3)	100 (20.0)
	40–49	10 (43.5)	25 (36.2)	100 (20.0)
	50–59	8 (34.8)	25 (36.2)	100 (20.0)
	>59	3 (13.0)	5 (7.3)	100 (20.0)
Affiliation	University medical school	10 (43.5)	31 (45.6)
	University science and engineering department	2 (8.7)	10 (14.7)
	University humanities and social sciences department	1 (4.4)	2 (2.9)
	Non-university research institution	4 (17.4)	13 (19.1)
	Company	3 (13.0)	4 (5.9)
	Other	3 (13.0)	8 (11.8)
Licensed physician	Yes	10 (43.5)	35 (50.7)
Licensed physician	No	13 (56.5)	34 (49.3)
Use of neuroimaging devices	Yes	16 (69.6)	26 (37.7)
Use of neuroimaging devices	No	7 (30.4)	43 (62.3)
Research subjects	Non-human	8 (34.8)	34 (50.0)^c
	Human	15 (65.2)	34 (50.0)^c
	w/ patients	12 (80.0)	25 (75.8)^d
	w/o patients	3 (20.0)	8 (24.2)^d
	w/ IF experience	6 (42.9)^a	10 (30.3)^d
	w/o IF experience	8 (57.1)^a	23 (69.7)^d
Guidelines on IFs available	Yes	4 (18.2)	8 (11.6)
	No	12 (54.6)	27 (39.1)
	Unsure	6 (27.3)	34 (49.3)
Experience with tests that employ neuroimaging technology	Yes			145 (29.0)
Experience with tests that employ neuroimaging technology	No			355 (71.0)
Experience participating in studies that use neuroimaging technology	Yes			8 (1.6)
	w/ IF experience			2 (25.0)
	w/o IF experience			6 (75.0)
	No			492 (98.4)

^aOf the 15 PIs who were conducting research on humans, one did not respond and was thus excluded from the calculations.
^bOf the 70 investigators, one with incomplete information was excluded from the calculations.
^cOf the 69 investigators with complete information, one without responses was excluded from the calculations.
^dOf the 34 investigators who were conducting research on humans, one without responses was excluded from the calculations.

ISSN: 1478-4505