. 2018 Jul 26;13(7):e0201390. doi: 10.1371/journal.pone.0201390

Table 1. Item and reliability analysis.

Items	Frequency				Difficulty
	α^a = .78; CI^b = .75-.81 (Total Scale)				α^a = .81; CI^b = .78-.83 (Total Scale)
	M^c	SD^d	r_jx^e	α.-x^f	M^c	SD^d	r_jx^e	α.-x^f
Communication	α^a = .66				α^a = .64
Waiting for my child’s medical test results (7)	2.86	.90	.39	.70	1.66	.97	.32	.70
Talking to my child about his/her illness (32)	3.23	1.16	.53	.50	2.12	1.25	.55	.39
Talking to family members about my child’s illness (37)	2.86	1.10	.53	.49	2.00	1.17	.51	.46
Medical Care	α^a = .69				α^a = .54
Taking charge of changes in my child’s daily treatment (28)	2.96	1.45	.46	.64	1.93	2.26	.27	.70
Helping my child with medical procedures (33)	3.50	1.42	.61	.43	1.92	1.32	.51	.28
Accompanying my child during medical tests and treatment (38)	4.10	1.26	.43	.67	1.97	1.37	.38	.42
Role Function	α^a = .42				α^a = .63
Having little time to attend to my own needs (25)	3.11	1.23	.27	.33	2.60	1.27	.42	.56
Feeling uncertain about disciplining my child (35)	2.26	1.12	.37	.24	2.33	1.32	.44	.53
Noticing a change in my relationship with my partner (41)	2.17	2.23	.24	.53	2.25	1.31	.49	.51
Emotional Functioning	α^a = .77				α^a = .66
Worrying about the long-term consequences of the disease (24)	3.48	1.12	.61	.68	3.12	1.96	.40	.73
Feeling helpless regarding my child’s situation (26)	2.72	1.26	.59	.71	2.82	1.42	.54	.50
Feeling uncertainty about the future (29)	3.08	1.26	.62	.66	2.91	1.38	.54	.50

^a Cronbach’s alpha value.

^b Confidence Interval of Cronbach’s alpha.

^c Mean (M).

^d Standard deviation (SD).

^e Item-total correlation (rjx).

^f Cronbach’s alpha if the item is eliminated (α.-x).