Table 4 Prevalence of nonunion from tibia fracture in different countries
| Â | Number of study | N | n | Prevalence rate | Heterogeneity | Model | |||
|---|---|---|---|---|---|---|---|---|---|
Effect size | Lower limit | Upper limit | I2 | p | |||||
USA | 19 | 30167 | 3083 | 0.094 | 0.075 | 0.114 | 93.40% | < 0.01 | Random |
China | 68 | 7550 | 396 | 0.047 | 0.039 | 0.057 | 69.50% | < 0.01 | Random |
Australia | 2 | 252 | 39 | 0.182 | 0.026 | 0.389 | 93.90% | < 0.01 | Random |
Belarus | 1 | 80 | 7 | 0.088 | – | – | – | – | – |
Canada | 1 | 110 | 13 | 0.118 | – | – | – | – | – |
Charlotte | 1 | 163 | 13 | 0.08 | – | – | – | – | – |
Egypt | 1 | 60 | 2 | 0.033 | – | – | – | – | – |
France | 1 | 49 | 8 | 0.162 | – | – | – | – | – |
India | 5 | 150 | 10 | 0.059 | 0.026 | 0.092 | 0 | 0.73 | Fixed |
Iran | 3 | 152 | 9 | 0.059 | 0.022 | 0.097 | 0 | 0.99 | Fixed |
Italy | 1 | 60 | 5 | 0.083 | – | – | – | – | – |
Japan | 2 | 169 | 20 | 0.114 | 0.049 | 0.278 | 91.70% | 0.001 | Random |
Malaysia | 1 | 58 | 10 | 0.172 | – | – | – | – | – |
Singapore | 1 | 103 | 44 | 0.427 | – | – | – | – | – |
Turkey | 1 | 73 | 1 | 0.014 | – | – | – | – | – |
UK | 4 | 1042 | 156 | 0.108 | 0.092 | 0.124 | 47.60% | 0.126 | Fixed |