Table 3.
Study | Favors DF- supplement n/N | Favors DF-free n/N | Weight % | OR (95%CI fixed) |
Dobb 1990 | 16/45 | 13/46 | 24 | 1.40 [0.58,3.40] |
Schultz 2000 | 6/22 | 7/22 | 14.8 | 0.80 [0.22,2.94] |
Spapen 2001 | 6/13 | 11/12 | 17.9 | 0.08 [0.01,0.79] |
Total(95%CI) | 28/80 | 31/80 | 100 | 0.83 [0.43,1.60] |
Test for heterogeneity χ2 = 5.34, df = 2, P = 0.069, Test for overall effect z = -0.56, P = 0.6.