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. 2022 Mar 21;176(5):e220142. doi: 10.1001/jamapediatrics.2022.0142

Table 2. Characteristics of Participants Enrolled in Pediatric Trials Published in Leading Pediatric and General Medical Journals From 2011 to 2020.

Characteristic Participants, No. (%) (N = 565 618)
Age group in article
Neonate (0-30 d) 51 860 (9.2)
Infant (31-365 d) 29 360 (5.2)
Toddler (1-3 y) 30 922 (5.5)
Preschool age (4-5 y) 34 901 (6.2)
School age (6-12 y) 88 507 (15.6)
Adolescent (13-18 y) 193 197 (34.2)
All pediatric age groups enrolled 136 921 (24.2)
Race or ethnicity
American Indian/Alaska Native 2815 (0.5)
Asian 11 869 (2.1)
Black/African American 93 988 (16.6)
Hispanic/Latino 105 770 (18.7)
Native Hawaiian/Pacific Islander 543 (0.1)
White 188 156 (33.3)
Othera 5579 (1.0)
Not reported 156 898 (27.7)
a

Other as defined in published trials.