Do investigator meetings improve recruitment rates in clinical trials? A retrospective before-and-after study of data from nine multi-centre clinical trials

Table 2 Effect of investigator meeting on weekly recruitment rate 8 weeks pre and post meeting – results from linear mixed-effects models

Population	Time point	8-weekly recruitment	Mean change in weekly recruitment per site (95% CI)	Pvalue^a
All sites (n = 82)	Pre meeting	284	0.073 (− 0.129, 0.275)	0.48
All sites (n = 82)	Post meeting	300	0.073 (− 0.129, 0.275)	0.48
Sites who attended (n = 60)	Pre meeting	254	0.100 (− 0.160, 0.360)	0.45
Sites who attended (n = 60)	Post meeting	271	0.100 (− 0.160, 0.360)	0.45

ISSN: 1745-6215