Table 2.

Factor analysis, discriptive statistics and internal consistency.

	Factor loading
	Factor 1	Factor 2	Factor 3	Factor 4	Factor 5	Communality
Time-dependent Burden (0–8: Mean = 4.6, SD = 2.2, alpha = 0.84)
1. I cannot freely leave the house because of caregiving	0.93	-0.15	0.10	0.07	-0.03	0.89
2. I do not have enough time for myself because of caregiving	0.83	0.19	-0.07	0.01	0.04	0.86
Emotional Burden (0–8: Mean = 2.7, SD = 2.1, alpha = 0.89)
3. I want to delegate the care to someone else	-0.06	0.91	0.06	0.07	-0.03	0.90
4. I am completely distressed by caregiving	0.07	0.77	0.16	0.05	0.01	0.88
Spiritual Burden (0–8: Mean = 2.8, SD = 2.1, alpha = 0.88)
5. I am experiencing hardship because caregiving does not give me a sense of satisfaction	0.11	0.04	0.90	-0.01	-0.03	0.91
6. Caregiving is hard because I cannot find the meaning of nursing	-0.06	0.19	0.82	0.00	0.07	0.88
Physical Burden (0–8: Mean = 3.1, SD = 2.3, alpha = 0.86)
7. My body aches when nursing	0.01	0.05	-0.02	0.92	0.00	0.88
8. I have ruined my health because of nursing	0.10	0.07	0.01	0.82	0.01	0.85
Service-related Burden (0–8: Mean = 1.8, SD = 1.8, alpha = 0.68)
9. It is a burden that public nursing care service personnel enter our house	0.09	0.22	-0.12	-0.11	0.86	0.80
10. I have a hard time because patients resent receiving public nursing care service	-0.08	-0.20	0.15	0.13	0.85	0.78
11. Total Care Burden (0–4: Mean = 1.9, SD = 1.2)	-	-	-	-	-	-
BIC total (0–44: Mean = 16.8, SD = 8.9, alpha = 0.91)	-	-	-	-	-	-
Total contribution of factors						0.86

Figures indicate standardized regression coefficient

Alpha indicate Cronbach's alpha coefficient

BIC: Burden Index of Caregivers