Table 3. Number of excluded trials and reasons for PubMed Central trials.

Reason	n	Percent
No baseline table	2824	37.4%
Full text page not available	2127	28.2%
Not a randomised trial	1547	20.5%
No sample size	408	5.4%
Just one column in table	304	4.0%
Follow-up results in baseline table	162	2.1%
Just one sample size	72	1.0%
Pre-post comparison	43	0.6%
Single-arm study	43	0.6%
Atypical table layout	14	0.2%
Could not detect statistics	9	0.1%
Total	7553	100.0%