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Table 1 GP and practice characteristics and distribution of the Point of Care tests at baseline (January to April 2010) stratified on the two RCTs

From: The efficacy of computer reminders on external quality assessment for point-of-care testing in Danish general practice: rationale and methodology for two randomized trials

   Study A Study B
   Computer reminder/postal reminder Computer reminder/usual care
   (Practices = 213) (Practices = 286)
   (GPs = 318) (GPs = 341)
   Mean (SD) or n (%) Mean (SD) or n (%)
GP and practice characteristics    
Gender Male 177 (56) 171 (50)
  Female 141 (44) 170 (50)
Mean age (SD)   53.1 (7.8) 56.3 (8.2)
Mean years as GP   11.3 (8.8) 14.8 (9.6)
Total number of patients on practice lists 507,568 533,864
Mean number of patients per GP (SD) 1,596 (419) 1,566 (398)
Practice organization Single Handed 139 (65) 239 (84)
  Group 74 (45) 47 (16)
Point of Care Tests at baseline    
Mean INR tests   86 (58) ---------------------
Mean Hemoglobin tests   63 (97) 40 (55)
Mean Glucose tests   78 (92) 47 (52)
Primary outcome   INR* HGB/GLU**
Average number of split tests   0.35 (0.55) 1.07 (1.36)
Secondary outcomes    
Practice with three or four split tests   0 (0) 0 (0)
Practices with at least one split test   67 (31) 146 (51)
  1. *four recommended in baseline period
  2. **four are recommended for each of the two tests in baseline period