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Table 1 Baseline characteristics of the sample

From: Does the provision of a DVD-based audio-visual presentation improve recruitment in a clinical trial? A randomised trial of DVD trial invitations

Characteristics   Total (n = 1050)   DVD (n = 501)   no-DVD (n = 531)
  Mean(SD) n(%) Mean(SD) n(%) Mean(SD) n(%)
Age (years) 70.9 (7.0)   70.8 (7.0)   71.0 (7.0)  
Sex
 Male   828 (80.2)   403 (80.4)   425 (80.0)
 Female   204 (19.8)   98 (19.6)   106 (20.0)
SIMD quintile
 1 (most deprived)   49 (4.8)   26 (5.2)   23 (4.3)
 2   192 (18.6)   86 (17.2)   106 (20.0)
 3   243 (23.6)   119 (23.8)   124 (23.4)
 4   382 (37.0)   190 (37.9)   192 (36.2)
 5 (least deprived)   166 (16.1)   80 (16.0)   86 (16.2)