Table 3

 Mean of difference between high and low volume trialists

Mean differencenp Value
All values reflect correction for variation among disease categories; n represents number of high volume trialist forms sampled. 95% confidence intervals are shown, and two tailed t tests performed to determine significance of departure from zero.
Benefits possibility0.129 (0.0342–0.224)640.032
Direct benefits0.165 (0.0864–0.244)630.0017
Agent terminology−0.258 (−0.407–−0.109)570.00093