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. 2021 May 26;4(5):e2111516. doi: 10.1001/jamanetworkopen.2021.11516

Table. Race, SES, and Sex Reporting in Randomized Clinical Trials Published in 2015 and 2019.

Characteristic reported Studies, No. (%) χ2 (df)a P valuea
2015 (n = 330) 2019 (n = 358)
Race 157 (47.6) 184 (51.4) 1.00 (1) .32
SES 48 (14.5) 44 (12.3) 0.75 (1) .39
Sex 324 (98.2) 355 (99.2) 1.28 (1) .26

Abbreviation: SES, socioeconomic status.

a

Pearson χ2 test. All tests were conducted on 688 studies.