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Table 1 Quality assessment of randomized, controlled trials included in the review

From: Effects of fish oil on serum lipid profile in dialysis patients: a systematic review and meta-analysis of randomized controlled trials

Reference Jadad score Sum of Jadad score Lost at follow-up Intention to treat analysis Allocation concealment
  Randomization Appropriateness of randomization Double blind Appropriateness of double blind Analysis reasons for withdrawals     
Diskin, 1990 [24] 1 0 0 0 1 2 3/7 no unknown
Donnelly, 1992 [25] 1 0 1 1 1 4 3/16 yes unknown
Ando, 1999 [26] 1 0 0 0 1 2 0/38 no unknown
Khajehdehi, 2000 [27] 1 0 0 0 1 2 0/60 no unknown
Schmitz, 2002 [28] 1 1 1 1 1 5 1/24 yes unknown
Saifullah, 2007 [14] 1 1 1 1 1 5 4/27 no unknown
Svensson 2008 [29] 1 1 1 1 1 5 54/206 no adequate
Bowden, 2009 [20] 1 1 1 1 1 5 9/96 yes unknown
Poulia, 2011 [18] 1 0 0 0 1 2 8/30 no unknown
Kooshki, 2011 [15] 1 1 1 0 0 3 0/34 no unknown
W.S. An, 2011 [30] 1 1 1 0 1 4 4/18 no unknown
Lok, 2012 [16] 1 1 1 1 1 5 5/201 yes adequate
Daud, 2012 [17] 1 0 1 1 1 4 9/63 yes unknown