Table 3.

Number of participants recruited in early and late starting centres for 3 example surgical trials

Example trial	Number of participants recruited per month — median (IQR)				p value
Early centres		Late centres
n	Median (IQR)	n	Median (IQR)
1	13	4.1 (2.6, 5.0)	14	1.8 (1.4, 4.8)	0.077
2	13	1.9 (1.0, 2.7)	13	1.0 (0.7, 1.7)	0.065
3	10	0.8 (0.5, 1.2)	10	0.9 (0.8, 1.9)	0.369