Table 1.
General information of the eligible studies included in this meta-analysis
| Author | Country | Cases | Age# | Male (%) | Study design | Adjusted effect (95% CI) | Setting |
|---|---|---|---|---|---|---|---|
| Kim DH | Korea | 5621 | 50.9 | 41.2 | Retrospective study | 2.08 (1.40–3.11) | All patients |
| Pilgram L | Lean European Open Survey | 426 | 78.3 | 58.9 | Retrospective study | 3.21 (1.17–8.82) | All patients |
| Oh SM | USA | 733 | 65 ± 16 | 50.8 | Retrospective study | 1.523 (1.008–2.303) | Hospitalized patients |
| Tremblay D | USA | 2563 | 59 (42–71) | 56.9 | Prospective study | 1.26 (1.06–1.51) | All patients |
| Bellmann-Weiler R | Austria | 259 | 68 (53–80) | 60.6 | Retrospective study | 5.063 (1.260–20.345) | Hospitalized patients |
| Khosravi B | Iran | 121 | 60 ± 16 | 55.4 | Retrospective study | 3.86 (1.52–9.77) | Hospitalized patients |
| Tang O | USA | 752 | 71.2 ± 51.7 | 39.9 | Prospective study | 1.12 (0.80–1.57) | All patients |
| Turgutalp K | Turkey | 567 | 63 (53–71) | 52.2 | Retrospective study | 0.541 (0.284–1.029) | Hospitalized patients |
| Le Borgne P | France | 287 | 63.1 (50.0–73.0) | 65.8 | Retrospective study | 5.14 (1.19–22.19) | Hospitalized patients |
| Lee J | Korea | 4052 | NR | 38.7 | Retrospective study | 1.74 (1.10–2.77) | All patients |
| Faghih Dinevari M | Iran | 1274 | 64.43 ± 17.16 | 55.41 | Prospective study | 1.68 (1.10–2.57) | Hospitalized patients |
| Giacomelli A | Italy | 520 | 61 (52–70) | 67 | Prospective study | 2.13 (1.21–3.76) | Hospitalized patients |
| Meisel E | Israel | 333 | 63.6 ± 16.8 | 65.5 | Retrospective study | 1.50 (0.83–2.71) | Hospitalized patients |
| Kompaniyets L | USA | 540,667 | 66 (53–77) | 51.7 | Retrospective study | 1.17 (1.14–1.19) | Hospitalized patients |
| Hermel DJ | USA | 473 | 61.23 ± 16.70 | 55.18 | Retrospective study | 1.74 (1.07–2.85) | Hospitalized patients |
| Bushman D | USA | 1029 | 56 (23–64) | 65.5 | Case-control study | 1.69 (1.01–2.80) | Hospitalized patients |
| Pagano L | Italy | 3801 | 65 (54–74) | 58.5 | Retrospective study | 2.022 (0.724–5.645) | All patients |
| Chojnicki M | Poland | 322 | 77.5 ± 10.0 | 40.7 | Prospective study | 2.21 (1.33–3.68) | Hospitalized patients |
| Bernardo J | Portugal | 544 | 68.9 ± 17.9 | 54.8 | Retrospective study | 0.972 (0.899–1.051) | Hospitalized patients |
| Alhasan KA | Saudi Arabia | 229 | 52.8 ± 16.6 | 80.4 | Retrospective study | 2.31 (0.63–8.48) | Hospitalized patients |
| Kim YJ | Korea | 5349 | 67.6 | 40.6 | Retrospective study | 1.917 (1.134–2.441) | All patients |
| Buso G | International RIETE registry | 737 | 63.6 | 60.1 | Retrospective study | 1.14 (0.77–1.69) | All patients |
| AbuRuz S | United Arab Emirates | 3269 | 44.3 ± 13.4 | 76.3 | Retrospective study | 1.76 (1.03–3.00) | Hospitalized patients |
Note: # the age (years) was presented as mean ± standard deviation or median (interquartile range, IQR); CI, confidence interval; NR, not clearly reported; RIETE, Registro Informatizado de Enfermedad TromboEmbolica; USA, the United states of America.