How inclusive were UK-based randomised controlled trials of COVID-19 vaccines? A systematic review investigating enrolment of Black adults and adult ethnic minorities

Table 1 Breakdown of raw values and the calculated prevalence of Black adults and adult ethnic minorities in the reviewed literature

Author	Number enrolled^a	Number randomised ^b	Number analysed^c	Number (%) of Black adults^d	Number (%) adult ethnic minorities^e
Stuart et al	1072	1072	1072	13 (1.21%)	78 (7.28%)
Ramasamy et al	560	560	552	1 (0.18%)	28 (5.07%)
Folegatti et al	1077	1067	1077	6 (0.56%)	98 (9.10%)
Heath et al	16645	15187	14039	52 (0.37%)	718 (5.11%)
Lazarus et al	679	679	679	0 (0%)	25 (3.68%)
Liu et al	463	463	463	6 (1.30%)	117 (25.27%)
Munro et al	3498	2883	2557	13 (0.51%)	180 (7.04%)
Total	23994	21911	20439	91 (0.45%)	1244 (6.09%)

^a Total number of participants enrolled in the trial. ^b Total number of participants randomised in the trial. ^c Total number included for primary analysis. ^d Total number and percentage of Black adults randomised in the trial. ^e Total number and percentage of adult ethnic minorities randomised in the trial

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