Cultural adaptation and validation of the “Kidney Disease and Quality of Life - Short Form (KDQOL-SF™) version 1.3” questionnaire in Egypt

Table 5 Country comparison of internal consistency reliability of the KDQOL-SF ^TM version 1.3 questionnaire

Scales	Egypt	US⁽¹⁾	Japan⁽²⁾	Iran⁽³⁾	Netherland⁽⁴⁾
Kidney disease targeted scales
·Symptoms/problems	0.81	0.84	0.81	0.92	0.80
·Effects of kidney disease	0.73	0.82	0.79	0.89	0.76
·Burden of kidney disease	0.88	0.83	0.81	0.86	0.80
·Work status	0.28	0.83	0.69	0.71	0.39
·Cognitive function	0.60	0.68	0.73	0.74	0.83
·Quality of social interaction	0.23	0.61	0.35	0.77	0.39
·Sexual function	0.90	0.89	0.92	0.92	0.95
·Sleep	0.90	0.90	0.61	0.77	0.72
·Social support	0.88	0.89	0.76	0.76	0.67
SF-36
·Physical function	0.95	0.92	0.90	0.93	….
·Role-physical	0.76	0.87	0.88	0.89	….
·Pain	0.87	0.90	0.83	0.88	….
·General health	0.83	0.78	0.80	0.74	….
·Mental health	0.70	0.80	0.84	0.73	….
·Role-Emotional	0.83	0.86	0.92	0.79	….
·Social function	0.88	0.87	0.73	0.82	….
·Energy/Fatigue	0.81	0.90	0.81	0.79	….

ISSN: 1471-2369