Table 1. Study Design, Study Period, Demographic Data of Included Studies.
| Study | Design | Study period | Mean follow-up period (mo) | No. of patients | Sex (male/female) | Mean age (yr) |
|---|---|---|---|---|---|---|
| Watson et al.7) (2016) | Retrospective | 2011–2012 | 5 (2–8) | 11 | 5/6 | Not mentioned |
| TasyIkan et al.9) (2015) | Retrospective | 2006.1–2013.1 | 29.2±14.8 | 25 | 11/17 | 71±14.3 |
| Hu et al.8) (2013) | Retrospective | 2008.1–2010.6 | 28.3 (24–40) | 32 | 25/7 | 47.8 (25–71) |
| Massoud3) (2010) | Prospective | 2002.2–2007.2 | 12 | 13 | 9/4 | 68.9 (54–85) |
| Su et al.11) (2006) | Retrospective | 1992–2001 | >12 | 28 | 5/23 | 79±11 |
| Chen et al.1) (2008) | Prospective | 1992–2004 | 74.7 (24–150) | 269 | 112/157 | 73.8 (58–90) |
| Saarenpää et al.10) (2002) | Retrospective | 1989.1–1996.12 | 60 (24–120) | 30 | 11/19 | 75 in male/78 in female |
| Kuokkanen13) (1991) | Retrospective | 1977.1–1985.12 | 63 (21–111) | 6 | Not mentioned | 76.7±11.48 |
| Davis et al.12) (1990) | Retrospective | 1983.6–1985.5 | Not mentioned | 9 | Not mentioned | Not mentioned |
| Kweon et al.14) (2017) | Retrospective | 2012.7–2015.5 | 25.2 (24–31) | 15 | 6/9 | 78.14 (65–87) |
| Lee et al.15) (2018) | Retrospective | 2003.5–2016.3 | 28.2±18.6 | 69 | 17/52 | 81.3±6.6 |
| Guo et al.16) (2019) | Retrospective | 2015.1–2017.3 | 15 (12–21) | 14 | 4/10 | 67.6 (56–93) |
| Wang et al.17) (2019) | Retrospective | 2013.1–2017.2 | 22.5 | 52 | 13/39 | 75.1 (63–91) |
| Kim et al.18) (2020) | Retrospective | 2011–2014 | 26.4 (12–43.2) | 106 | 39/67 | 76.4 in DHS group/77.5 in CMN group |
| Yoo et al.19) (2019) | Retrospective | 2011.1–2016.6 | At least 12 months of follow-up | 185 | 48/137 | 78.5±7 in ITST nail, 79.5±7 in PFNA, 79.2±7.5 in Gamma |
DHS: dynamic hip screw, CMN: cephalomedullary nail, ITST: intertrochanteric/subtrochanteric, PFNA: proximal femoral nail antirotation.