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Table 3 Intervention attendance rates before and after the pause and timing of the workshops at 10 sites

From: How can we successfully recruit depressed people? Lessons learned in recruiting depressed participants to a multi-site trial of a brief depression intervention (the ‘CLASSIC’ trial)

    Attendance rate  
Site Date of workshop Trial month Number of experimental group invited (attended) Number of control group invited (attended) Total
Lewisham April 2010 1 26 (10) = 38.5% 23 (11) = 47.8%  
Wandsworth May 2010 2 24 (14) = 58.3% 24 (10) = 41.7%  
Merton June 2010 3 19 (12) = 63.2% 19 (7) = 36.8%  
Average before pause    69 (36) =50.7% 66 (28) = 2.4% 135 (64) = 47.4%
After pause and review of procedures
 Croydon September 2010 6 36 (19) = 52.8% 37 (27) = 73.0%  
 Lambeth October 2010 7 17 (13) = 76.5% 17 (8) = 47.1%  
 Bexley November 2010 8 26 (16) = 61.5% 25 (17) = 68.0%  
 Greenwich January 2011 10 24 (20) = 83.3% 25 (15) = 60.0%  
 Kingston February 2011 11 22 (17) = 77.3% 23 (15) = 65.2%  
 Lewisham 2 March 2011 12 16 (13) = 81.3% 18 (9) = 50.0%  
 Croydon 2 March 2011 12 18 (17) = 94.4% 20 (15) = 75.0%  
 Average after pause    159 (115) = 72.3% 165 (106) =64.2% 324 (221) = 68.2%
Overall    228 (151) = 65.8% 231 (134) = 58.0% 459 (285) = 62.1%