Skip to main content

Advertisement

Springer Nature is making SARS-CoV-2 and COVID-19 research free. View research | View latest news | Sign up for updates

Table 2 Characteristics of included RCTs in terms of total, eligible and recruited population *

From: The external validity of published randomized controlled trials in primary care

Characteristic Total Trials (%) Trials That Reported Target Population Trials That Reported Number of Patients Eligible
Total RCTs 148 (100) 103 (70) 119 (80)
Journal    
BMJ 58 (39) 44 (39) 50 (42)
British Journal of General Practice 46 (31.0) 31 (30) 36 (30)
Family Practice 24 (16) 17 (15) 19 (16)
Journal of Family Practice 20 (14) 11 (17) 14 (12)
Number of enrolees    
<100 48 (32) 40 (39) 44 (37)
110–260 51 (34) 31 (30) 37 (31)
260–650 24 (16) 15 (15) 19 (16)
>650 25 (17) 17 (17) 19 (16)
Multicentre    
Multiple 116 (79) 83 (81) 94 (80)
Single 27 (18) 16 (16) 21 (18)
Unclear 4 (3) 3 (3) 3 (3)
Funding Source    
Charity 15 (13) 10 (12) 13 (14)
Governing body 5 (4) 3 (4) 3 (3)
Government 66 (57) 55 (65) 60 (63)
Pharmaceutical Industry 15 (12) 8 (9) 10 (10)
Other 14 (13) 9 (11) 10 (10)
Intervention Studied    
Counselling/Lifestyle 11 (8) 8 (8) 10 (8)
Decision Support aids 7 (5) 6 (6) 7 (6)
Educational 26 (18) 21 (21) 23 (14)
Pharmaceutical therapy 23 (16) 9 (9) 11 (9)
Surgery/procedure 3 (2.0) 3 (3) 3 (3)
Other 76 (52) 55 (54) 64 (54)