Table 2.

Validity test with Kendall τ, SE, 95% CI, and P value of each test for health-related articles.

Article category		Kendall τ (95% CI)
Total articles (n=16)
	HIQUALa vs DISCERN	0.72 (0.49-0.86)
	HIQUAL vs QUESTb	0.69 (0.44-0.84)
	QUEST vs DISCERN	0.70 (0.45-0.84)
Treatment articles (n=7)
	HIQUAL vs DISCERN	0.62 (0-0.90)
	HIQUAL vs QUEST	0.59 (0-0.89)
	QUEST vs DISCERN	0.75 (0.22-0.94)
Diagnosis and prevention articles (n=9)
	HIQUAL vs DISCERN	0.67 (0.22-0.88)
	HIQUAL vs QUEST	0.65 (0.19-0.87)
	QUEST vs DISCERN	0.48 (0-0.80)

^aHIQUAL: Health Information Quality Assessment Tool.

^bQUEST: Quality Evaluation Scoring Tool.