Table 3.
Results of meta-analysis of studies investigating effect of collaterals on mortality after exclusion of studies with >3 asymmetric patient characteristics
| Odds collaterals | Odds no collaterals | N | Odds ratio | 95 % CI | T-value | P-value | |
|---|---|---|---|---|---|---|---|
| 1. Antoniucci 2002 | 11/253 | 81/819 | 1164 | 0.44 | 0.23–0.84 | −2.50 | 0.0125 |
| 2. Monteiro 2003 | 4/31 | 6/29 | 70 | 0.62 | 0.16–2.44 | −0.68 | 0.0497 |
| 3. Elsman 2004 | 3/103 | 45/908 | 1059 | 0.59 | 0.18–1.92 | −0.88 | 0.380 |
| 5. Sorajja 2007 | 3/116 | 8/191 | 318 | 0.62 | 0.16–2.37 | −0.70 | 0.483 |
| 6. Regieli 2009 | 2/261 | 4/612 | 879 | 1.17 | 0.21–6.44 | +0.18 | 0.855 |
| 7. Desch 2010 | 3/66 | 22/144 | 235 | 0.30 | 0.09–1.03 | −1.92 | 0.056 |
| 9. Ilia 2011 | 3/44 | 7/27 | 81 | 0.26 | 0.06–1.10 | −1.83 | 0.068 |
| Pooled odds ratio | 3806 | 0.47 | 0.31–0.72 | −3.50 | 0.0005 |
Heterogeneity chi-square value = 2.3064, 6° of freedom, not significant. I-square value = 0.00 % [< 50 % cut-off for no heterogeneity]