Table 2.
Pooled odds ratio for operative fixation versus conservative treatment in the meta-analysis
| Subgroups |
Sample size |
Number of studies |
Random model |
Test of heterogeneity |
Egger's test for publication bias |
||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Case | Control | OR (95% CI) | Z | p value | Q | p value | I 2 (%) | t | p value | ||
| Overall effects |
142 |
149 |
7 |
1.42 (0.33–6.11) |
0.47 |
0.64 |
16.68 |
0.01 |
64 |
1.52 |
0.19 |
| Study design |
|
|
|
|
|
|
|
|
|
|
|
| Retrospective |
109 |
78 |
4 |
0.73 (0.15–3.55) |
1.21 |
0.23 |
6.89 |
0.08 |
56 |
0.99 |
0.43 |
| Prospective |
26 |
27 |
2 |
1.03 (0.17–6.40) |
0.03 |
0.98 |
0.92 |
0.34 |
0.0 |
-0.03 |
0.98 |
| Sample size |
|
|
|
|
|
|
|
|
|
|
|
| Sample size ≤40 |
66 |
81 |
5 |
1.36 (0.48–3.86) |
0.60 |
0.55 |
1.86 |
0.76 |
0.0 |
0.30 |
0.79 |
| Sample size >40 |
102 |
87 |
3 |
1.52 (0.10–24.11) |
0.29 |
0.77 |
14.35 |
0.001 |
86.1 |
- |
- |
| Ethnicity |
|
|
|
|
|
|
|
|
|
|
|
| European |
122 |
134 |
6 |
1.60 (0.30–8.51) |
0.55 |
0.58 |
16.64 |
0.005 |
70 |
1.62 |
0.18 |
| Asian |
20 |
15 |
1 |
0.74 (0.04–12.82) |
0.21 |
0.83 |
- |
- |
- |
- |
- |
| Operative approaches |
|
|
|
|
|
|
|
|
|
|
|
| Plate fixation |
89 |
39 |
2 |
0.20 (0.05–0.76) |
2.35 |
0.019 |
1.01 |
0.315 |
0.8 |
- |
- |
| Tension band wiring fixation |
27 |
26 |
2 |
1.77 (0.41–7.70) |
0.76 |
0.445 |
0.20 |
0.657 |
0.0 |
- |
- |
| Others | 26 | 84 | 3 | 4.01 (0.31–45.26) | 1.07 | 0.285 | 5.68 | 0.058 | 64.8 | 0.03 | 0.983 |