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Table 3 Quality of reports of 251 complementary and alternative medicine randomized controlled trials in children using the Jadad assessment scale and the adequacy of allocation concealment

From: Assessing the quality of reports of randomized trials in pediatric complementary and alternative medicine

Total number of items Decade
  1970s (n = 5) 1980s (n = 47) 1990s (n = 186) 2000s (n = 13) Total (n = 251)
Randomization, mean (sd) 0.2 (0.8) 0.7 (0.7) 1.0 (0.6) 1.2 (0.6) 0.9 (0.6)
Double-blinding, mean (sd) 0.8 (1.1) 0.6 (0.9) 0.6 (0.9) 0.6 (0.9) 0.6 (0.9)
Withdrawals/dropouts, n (%) 2 (40.0) 12 (25.5) 89 (47.8) 2 (15.4) 105 (41.8)
Overall = 5, mean (sd) 1.4 (1.7) 1.6 (1.3) 2.0 (1.2) 2.0 (1.5) 1.9 (1.3)
Unclear allocation concealment, n (%) 4 (80.0) 41 (87.2) 150 (80.6) 9 (69.2) 204 (81.3)
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