Table 2. Frequency of Quality Reporting of Race and Ethnicity Determined by International Committee of Medical Journal Editors (ICMJE) Recommendations.

ICMJE recommendation	ICMJE (n = 523)		Non-ICMJE (n = 276)		P value
	No.	%, Mean (SD)	No.	%, Mean (SD)
The authors reported who classified the individuals in terms of race and ethnicity	82	15.4 (6.0)	34	12.3 (21.2)	.23
The authors explained why the classification reported in the study was used	62	11.6 (14.2)	27	9.8 (4.9)	.42
The authors indicated whether the classification options were defined by the investigator or the participant	48	9.0 (10.5)	6	2.2 (1.1)	<.001
The authors explained why race was assessed in the study	370	69.5 (19.6)	74	26.8 (4.2)	<.001
The authors defined the variable of race	18	3.4 (4.2)	0	0	.002