Table 1

Racial/ethnic distribution of participants with type 1 diabetes in RCTs of diabetes technologies

Ref. no.First author, yearDiabetes technologyTotal population, NRace/ethnicity distribution, N (% of total population)
Non-Hispanic WhiteHispanic or LatinoNon-Hispanic BlackAsianOther
6Breton, 2020Control-IQ10182 (81.1)8 (7.9)0NR11 (12)
7Brown, 2019+Control-IQ168147 (87.5)18 (10.7)NRNRNR
8Aleppo, 2017+Dexcom G4226207 (91.5)9 (4)5 (2.2)4 (1.7)NR
9Beck, 2017*+Dexcom G47565 (86.6)2 (2.6)5 (6.6)NRNR
10Feig, 2017#+Medtronic Guardian325279 (85.8)NRNRNRNR
11Pratley, 2020+Dexcom G5203187 (92)5 (2.4)6 (3)1 (0.5)2 (1)
12Forlenza, 2018Basal-IQ and Dexcom G510382 (79.6)7 (6.8)2 (1.9)3 (2.9)9 (8.8)
13Laffel, 2020+Dexcom G515395 (62)33 (21.5)12 (7.8)6 (3.9)6 (3.9)
14Kovatchev, 2020##Control-IQ80##NRNRNRNRNR
Total of participant race reported+1,3541,144 (84.5)82 (6)30 (2.2)14 (1)28 (2)
  • NR, not reported.

  • * The main study (n = 158) did not report racial distribution (15); therefore, we included this substudy.

  • + Some studies have missing data on race/ethnicity.

  • # This is a multinational study including U.S. sites.

  • ## This study was not included in the final analysis, as they did not report race/ethnicity.