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Table 1 Respondent and trial characteristics

From: Predictors of clinical trial data sharing: exploratory analysis of a cross-sectional survey

  Respondents (%)
Age  
     ≤49 years 126 (40)
     50 to 64 years 159 (50)
     ≥ 65 years 31 (10)
Sex  
     Male 243 (77)
     Female 73 (23)
Trialist academic productivity (research articles published in past three years)  
     1 to 10 articles 71 (22)
     11 to 25 articles 117 (37)
     >25 articles 129 (41)
Trialist geographic location  
     United States or Canada 167 (53)
     Western Europe 113 (36)
     Other 37 (11)
Trial funding source  
     Government 120 (38)
     Industry or mixed funding 152 (48)
     Other 45 (14)
Trial size  
     ≤239 subjects 80 (25)
     240 to 2,016 subjects 158 (50)
     ≥2,017 subjects 79 (25)
Journal in which trial was published  
     NEJM 113 (36)
     Lancet 70 (22)
     JAMA 43 (14)
     Annals of Internal Medicine 24 (8)
     The BMJ 53 (16)
     PLoS Medicine 14 (4)
  1. JAMA, Journal of the American Medical Association; NEJM, New England Journal of Medicine.