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. 2012 Apr 4;1(1):e1. doi: 10.2196/ijmr.2010

Table 1.

Website scores for accuracy, comprehensiveness, transparency, reading grade, PageRank, and quality by website type.

Criterion	Academic (n = 11)^a	Commercial (n = 48)^a	Nonprofit (n = 28)^a	Professional (n = 11)^a	Combined (n = 98)^a	P value
Accuracy, mean (SD)	0.95 (0.04)	0.94 (0.06)	0.94 (0.07)	0.91 (0.10)	0.93 (0.07)	.56^b
Accuracy >0.95, n (%)^c	7 (64%)	26 (52%)	15 (57%)	3 (27%)	51 (52%)	.31^d
Accuracy >0.90, n (%)	10 (91%)	39 (80%)	22 (81%)	9 (82%)	80 (82%)	.84^d
Comprehensiveness, mean (SD)	32.4 (12.1)	35.5 (12.3)	35.4 (13.9)	32.4 (11.4)	34.8 (12.5)	.80^b
Transparency, mean (SD)	0.42 (0.09)	0.55 (0.11)	0.52 (0.11)	0.53 (0.13)	0.52 (0.12)	.01^b
Reading grade level, mean (SD)	10.9 (2.6)	10.4 (2.2)	10.0 (2.0)	9.6 (1.6)	10.3 (2.1)	.40^b
PageRank, mean (SD)	3.6 (1.7)	3.1 (1.7)	4.2 (1.5)	3.0 (1.4)	3.4 (1.7)	.05^b
Quality, mean (SD)	6.5 (0.79)	6.9 (0.61)	6.9 (0.83)	6.7 (0.65)	6.8 (0.70)	.44^b

^a Number of websites analyzed.

^b P values from analysis of variance.

^c Number of websites (% of websites).

^d P values from Pearson chi-square test.