Table 3. PDI scores, confirmatory factor analysis of PDI items, and associations with IES-R.

		Total (n = 1,411)	Daiichi (n = 831)						Daini (n = 580)
		Factor analysis†	Score		Associations with IES-R				Score		Associations with IES-R
			Mean	SD	B	SE	β	t	Mean	SD	B	SE	β	t
PDI total score			19.46	9.35	1.13	0.05	0.66***	24.9	15.89	8.64	1.13	0.05	0.67***	21.5
PDI items	1. I felt helpless to do more	0.69	1.51	1.24	5.79	0.39	0.46***	14.7	1.20	1.17	6.57	0.43	0.54***	15.2
	2. I felt sadness and grief	0.75	2.06	1.29	5.94	0.38	0.48***	15.8	1.81	1.29	5.43	0.41	0.48***	13.3
	3. I felt frustrated or angry I could not do more	0.65	1.77	1.30	5.12	0.38	0.42***	13.3	1.48	1.31	4.50	0.42	0.41***	10.8
	4. I felt afraid for my safety	0.72	1.94	1.35	4.68	0.38	0.40***	12.4	1.39	1.23	4.63	0.45	0.40***	10.4
	5. I felt guilt that more was not done	0.62	1.37	1.24	5.08	0.41	0.40***	12.4	1.04	1.18	5.92	0.44	0.49***	13.4
	6. I felt ashamed of my emotional reactions	0.60	0.70	0.96	7.70	0.51	0.47***	15.1	0.57	0.86	7.32	0.63	0.44***	11.7
	7. I felt worried about the safety of others	0.44	3.21	1.04	3.70	0.53	0.24***	7.00	3.10	1.05	2.36	0.56	0.18***	4.25
	8. I had the feeling I was about to lose control of my emotions	0.68	0.91	1.15	7.07	0.41	0.52***	17.3	0.82	1.09	6.42	0.48	0.49***	13.4
	9. I had difficulty controlling my bowel and bladder	0.34	0.09	0.43	10.2	1.23	0.28***	8.26	0.07	0.33	14.0	1.71	0.32***	8.19
	10. I was horrified by what happened	0.64	2.69	1.30	4.74	0.40	0.39***	12.0	2.51	1.32	3.46	0.43	0.32***	8.08
	11. I had physical reactions like sweating, shaking and pounding heart	0.67	1.06	1.27	6.21	0.38	0.50***	16.5	0.79	1.11	7.26	0.45	0.56***	16.2
	12. I felt I might pass out	0.46	0.28	0.79	7.26	0.65	0.37***	11.2	0.17	0.54	10.39	1.00	0.40***	10.4
	13. I felt I might die	0.64	1.84	1.55	3.82	0.33	0.38***	11.6	0.91	1.26	3.85	0.45	0.34***	8.60

***p<0.001.

^†One-factor solution accounted for 38.3% of the total variance.