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Table 4 Methodological reporting in major hepato-gastroenterology journals in different years

From: Methodological reporting of randomized controlled trials in major hepato-gastroenterology journals in 2008 and 1998: a comparative study

  Gluud [17] Kjaergard [16] Current study Kjaergard [18] Bai [15] Current study
Study period 1985-1997 1981-1998 1998 1964-2000 2006 2008
Included journals the Journal of Hepatology Hepatology 5 * Gastroenterology 6* 5*
Number of RCTs 166 235 99 383 105 107
Sequence generation 47(28%) 121(51%) 35(35%) 161(42%) 85(81%) 81(76%)
Allocation concealment 22(13%) 80(34%) 25({25%) 149(39%) 64(61%) 62(58%)
Blinding 50(30%) 80(34%) 52(53%) 237(62%) 54(51%) 62(58%)
Sample size calculation 33(20%) 61(26%) 47(47%) - 79(75%) 83(78%)
Incomplete outcome - 165(70%) 34(34%) - - 52(49%)
Intention-to-treat analysis 95(57%) - 42(42%) - - 74(69%)
Free of selective reporting - - 43(43%) - - 57(53%)
  1. *The current study included the five journals:American Journal of Gastroenterology, Gut, the Journal of Hepatology, Gastroenterology, Hepatology.
  2. * The study of Bai included six journals:Gastroenterology, Hepatology, Gut, Journal of Hepatology, American Journal of Gastroenterology,
  3. Clinical Gastroenterology and Hepatology