Skip to main content

Table 3 Study quality of the included studies based on the modified Jadad scale

From: Factors affecting the incidence of postoperative periprosthetic fractures following primary and revision hip arthroplasty: a systematic review and meta-analysis

  Author, year Randomization Concealment of allocation Double blinding Total withdrawals and dropouts Total Quality
1 Sarvilinna et al. [19] ** * * ** 06 Good
2 Sarvilinna et al. [20] * * * * 04 Good
3 Sarvilinna et al. [21] * * * * 04 Good
4 Berend et al. [22] ** * * ** 06 Good
5 Cook et al. [23] ** * * * 05 Good
6 Meek et al. [24] ** * * ** 06 Good
7 Zhang et al. [25] * * * * 04 Good
8 Savin et al. [26] * * * * 04 Good
9 Singh et al. [27] ** * * ** 06 Good
10 Singh et al. [28] ** * * ** 06 Good
11 Katz et al. [29] ** * * ** 06 Good
12 Thien et al. [30] ** * * ** 06 Good
13 Ricioli Jr et al. [31] * * * * 04 Good
14 Gromov et al. [32] * * * * 04 Good
15 Lindberg-Larsen et al. [33] ** * * ** 06 Good
16 Tamaki et al. [34] * * * * 04 Good
  1. *Indicates one point
  2. **Indicated two points