. Author manuscript; available in PMC: 2014 Mar 1.

Published in final edited form as: Contemp Clin Trials. 2013 Jan 5;34(2):320–325. doi: 10.1016/j.cct.2012.12.008

Table 2.

Marginal Effects from Bootstrapped OLS Regression Model

	Marginal Effects⁺ n=46 Adjusted R² = 0.7426	Bias-Corrected 95% Confidence Interval
Number of Open Cancer Control Trials	5.49^* (1.11)	3.51 to 7.69
Number of Newly Diagnosed Patients	0.004 (0.002)	−.002 to .008
Total Number of Staff	.848 (.74)	−.360 to 2.64
Staff Dedicated to Enrolling Patients in Control and Prevention Trials
One Staff Member Dedicated to Prevention and Control Trials	−22.16 (20.64)	−70.87 to 14.09
More Than One Staff Member Dedicated to Prevention and Control Trials	29.98^* (15.22)	.816 to 60.31
Recognition of Physicians for Enrolling Patients in Clinical Trials
Provides Recognition	25.35^* (11.65)	3.43 to 47.72
Expectations for Physicians to Enroll Patients in Clinical Trials
Has Expectation	3.47 (17.76)	−34.23 to 34.39
Constant	−71.65

⁺

Bootstrapped standard errors in parentheses

Indicates significant at the .05 level