Health and Quality of Life Outcomes

Table 3 Test-retest reliability correlation coefficients

From: Japanese version of the Dermatology Life Quality Index: validity and reliability in patients with acne

	Correlation coefficient*	ICC**
Total Score	0.91	0.90
Symptom and feeling	0.65	0.62
Daily activities	0.80	0.78
Leisure	0.81	0.81
Work and School	0.56	0.57
Personal relationships	0.64	0.64
Treatment	0.49	0.50

N = 44; *Pearson's correlation coefficient; ** Intraclass Correlation Coefficient

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ISSN: 1477-7525

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