Validity and reliability of the Italian version of the cardiac quality of life questionnaire for pediatric patients with heart disease (PedsQLTM)

Table 4 Internal consistency reliability of parents PedsQL cardiac module and parents PedsQL generic module (Cronbach coefficient)

	2–4 years	5–7 years	8–18 years
PedsQL cardiac module
Mothers
Total score	0.57	0.82	0.89
Heart problems and treatment	0.79	0.80	0.76
Treatment II	1.00	1.00	0.56
Perceived physical appearance	0.68	0.49	0.80
Treatment anxiety	0.95	0.94	0.94
Cognitive problems	0.50	0.69	0.84
Communication	1.00	0.76	0.84
Fathers
Total score	0.84	0.70	0.90
Heart problems and treatment	0.75	0.80	0.82
Treatment II	1.00	0.79	0.78
Perceived physical appearance	1.00	0.55	0.76
Treatment anxiety	0.96	0.95	0.93
Cognitive problems	0.61	0.61	0.84
Communication	0.88	0.78	0.83
PedsQL generic module
Mothers
Total score	0.91	0.82	0.82
Physical functioning	0.91	0.72	0.72
Emotional functioning	0.74	0.72	0.56
Social functioning	0.86	0.71	0.71
School functioning	0.65	0.72	0.72
Fathers
Total score	0.85	0.85	0.82
Physical functioning	0.73	0.84	0.72
Emotional functioning	0.79	0.71	0.56
Social functioning	0.86	0.95	0.71
School functioning	0.55	0.77	0.72