Table 3.

Random-effects meta-regression assessing sources of heterogeneity in Black representation in critical care randomized controlled trials

Predictor	Beta coefficient	95% confidence interval	P value
USA site	-0.129	-0.239 to -0.020	0.02
Drug	0.003	-0.084 to 0.089	0.96
Pragmatic trial	0.059	-0.063 to 0.181	0.34
Multicentre	-0.015	-0.143 to 0.114	0.82
Industry funding	0.03	-0.026 to 0.086	0.29
Year of publication	-0.012	-0.036 to 0.012	0.34
City	0.001	-0.0003 to 0.003	0.12