Table 4. Frequencies of summary statistics from the baseline tables of PubMed Central trials.

The first column indicates if the statistics could be included in the tests of under- or over-dispersion.

Included in test	Statistic	n	Percent
Yes	Percent	37,229	52
	Continuous	27,539	38
	Number	2816	4
	Confidence interval	38	<1
No	Median	4212	6
	P-value	206	<1
	Range	50	<1
	Total	72,090	100