Table 1.
The basic characteristics of all eligible studies.
| References | Country | Study type | Groups | No. | Gender(M:F) | Age(years) (mean ± SD) | Age matched | PSC- BPPV | HSC- BPPV | ASC- BPPV | Bilateral BPPV | MSC- BPPV |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Akkuzu et al. (10) | Turkey | Prospective | BPPV | 25 | 6:19 | 52.9 ± 11.9 | Yes | 25 | 0 | 0 | 5 | 0 |
| Control | 17 | 6:11 | 51.8 ± 15.8 | – | – | – | – | – | ||||
| Yang et al. (15) | Korea | Prospective | BPPV | 41 | 12:29 | Mean 59 | No | 34 | 7 | 0 | 0 | 0 |
| Control | 92 | NA | Mean 42 | – | – | – | – | – | ||||
| Korres et al. (14) | Greece | NA | BPPV | 27 | 14:13 | Median 45 | Yes | 27 | 0 | 0 | 3 | 0 |
| Control | 30 | 17:13 | Median 47 | – | – | – | – | – | ||||
| Longo et al. (25) | Italy | Prospective | BPPV | 23 | 8:15 | Mean 59 | No | 23 | 0 | 0 | 0 | 0 |
| Control | 24 | 12:12 | Mean 51 | – | – | – | – | – | ||||
| Eryaman et al. (26) | Turkey | Prospective | BPPV | 31 | 12:19 | 51.9 ± 11.8 | No | 31 | 0 | 0 | 0 | 0 |
| Control | 23 | 8:15 | 51.1 ± 10.8 | – | – | – | – | – | ||||
| Nakahara et al. (24) | Japan | NA | BPPV | 12 | 5:7 | Mean 65.5 | Yes | 12 | 0 | 0 | 0 | 0 |
| Control | 12 | 6:6 | Mean 63.1 | – | – | – | – | – | ||||
| Talaat et al. (23) | Egypt | NA | BPPV | 112 | 52:60 | 46.2 ± 10.2 | Yes | 112 | 0 | 0 | 0 | 0 |
| Control | 100 | 45:55 | 44.2 ± 9.9 | – | – | – | – | – | ||||
| Singh et al. (19) | India | NA | BPPV | 31 | NA | 42 ± 5.7 | Yes | 31 | 0 | 0 | 0 | 0 |
| Control | 31 | NA | 42.2 ± 5.8 | – | – | – | – | – | ||||
| Kim et al. (13) | Korea | NA | BPPV | 102* | 48:54 | 62.8 ± 13.1 | Yes | 47 | 51 | 0 | 0 | 4 |
| Control | 50 | 23:27 | 60.1 ± 9.2 | – | – | – | – | – | ||||
| Karatas et al. (22) | Turkey | NA | BPPV | 36 | 10:26 | Mean 47.2 | Yes | 34 | 2 | 0 | 0 | 0 |
| Control | 20 | 7:13 | Mean 45.1 | – | – | – | – | – | ||||
| Xu et al. (21) | China | prospective | BPPV | 30 | 12:18 | Mean 45.5 | Yes | 30 | 0 | 0 | 0 | 0 |
| Control | 30 | 10:20 | Mean 42.2 | – | – | – | – | – | ||||
| Pascual et al. (20) | Spain | prospective | BPPV | 67 | 16:51 | Mean 58.06 | No | 67 | 0 | 0 | 0 | 0 |
| Control | 60 | 23:37 | Mean 46.3 | – | – | – | – | – |
*
Ten patients with bilateral BPPV were excluded.
No., number; M, male; F, female; NA, not available; SD, standard deviation; BPPV, benign paroxysmal positional vertigo; PSC, posterior semicircular canal; HSC, horizontal semicircular canal; ASC, anterior semicircular canal; MSC, multiple semicircular canal.