Subgroups | No. of studies | Summary effect | Heterogeneity | ||||
---|---|---|---|---|---|---|---|
OR | (95% CI) | p Value | I2,% | p Value | |||
Study design | Cohort | 3 | 0.97 | 0.89-1.06 | 0.486 | 1.05 | 0.591 |
Case–control | 6 | 0.91 | 0.70-1.19 | 0.499 | 80.1 | <0.001 | |
Site | Europe | 4 | 0.827 | 0.61-1.13 | 0.232 | 72.4 | 0.012 |
Americas | 2 | 1.01 | 0.88-1.1 | 0.52 | 0 | 0.857 | |
Asia | 3 | 0.921 | 0.68-1.25 | 1.41 | 82.2 | 0.001 | |
Gender | Male | 2 | 0.818 | 0.62-1.09 | 0.168 | 29.9 | 0.232 |
Female | 6 | 0.961 | 0.77-1.20 | 0.726 | 70 | 0.005 | |
Fracture type | Hip fracture | 8 | 0.897 | 0.74-1.09 | 0.276 | 75.8 | <0.001 |
Humeral fracture | 2 | 0.943 | 0.71-1.25 | 0.679 | 0 | 0.889 |