Table 1.
Study characteristics of all randomised trials included in the meta‐analysis
| Studies | Country of main authors | Sample size | Scar cause | Intervention | Control | Treatment group size: control group size | Treatment duration | Follow up length |
|---|---|---|---|---|---|---|---|---|
| Karagoz 200922 | Turkey | 45 | Untreated postburn hypertrophic scars within 6 mo | SG | SGS/ onion Extract | 15:15 (SGS):15 (onion extract) | 6 mo | 6 mo |
| Kong 201419 | Korea | 96 |
Tricompartmental cemented total knee arthroplasty |
SG | Petrolatum | 48:48 | 1 mo | 12 mo |
| Meseci 201718 | Turkey | 60 | Surgery for benign gynaecological diseases through a primary Pfannenstiel incision | SG | No treatment/ methylprednisolone cream | 21:18 (no treatment):21 (methylprednisolone cream) | 3 mo | 6 mo |
| Lin 201820 | China | 20 | horizontal Caesarean section using Pfannenstiel incision | SG | SGS | 20:20 (each surgical wound divided into 2 halves) | 3 mo | 12 mo |
| Song 201817 | Korea | 90 | Gynaecologic laparoscopic surgery | SG |
No treatment/ onion extract |
30:30 (no treatment): 30 (onion extract) | 12 wK | 12 wK |
| Shirazi 201921 | Iran | 64 | Hypospadias surgical repair | SG | Vaseline | 32:32 | 2 mo | 8 mo |
Abbreviations: SG, silicone gel; SGS, silicone gel sheet.