Table 2. Subgroup analysis of the passing rate of the VR group versus the traditional education group.
| Subgroup | No. of studies (ref) | OR (95%CI) | I2 | Pheterogeneity |
|---|---|---|---|---|
| Country | ||||
| North America countries | 4 (18,20-22) | 1.79 (1.23–2.60) | 31.5% | 0.21 |
| England and Korea | 2 (10,19) | 2.12 (0.98–4.60) | 0.0% | 0.38 |
| Profession | ||||
| Freshmen | 1 (19) | 1.70 (0.69–4.23) | ||
| Postgraduate | 3 (10,21,22) | 1.64 (1.13–2.39) | 0.0% | 0.48 |
| Hospital resident | 2 (18,20) | 15.73 (2.35–105.04) | 0.0% | 0.93 |
| Size | ||||
| Small | 2 (20) | 13.50 (1.19–153.38) | 0.0% | 0.73 |
| Medium | 4 (10,18,19,21) | 2.68 (1.32–5.44) | 0.0% | 0.43 |
| Large | 1 (22) | 1.53 (1.03–2.27) | ||
OR, odds ratio; CI, confidence interval; No., number; VR, virtual reality.