Table I.
Main demographic features of studies selected for meta-analysis.
| Author Year | Type of study | Total patients | Total nerves at risk | Cancer | Men (%) |
|---|---|---|---|---|---|
| Atallah et al. 2009 (8) | Non-randomised | 261 | 421 | 17 | 23.0 |
| Barczyń ski et al. 2009 (9) | Randomised | 1000 | 2000 | 60 | 9.06 |
| Brauckhoff et al. 2002 (10) | Non-randomised | 97 | 182 | 75 | 42.3 |
| Chan et al. 2006 (11) | Non-randomised | 639 | 1000 | 141 | 24.7 |
| Dionigi et al. 2009 (12) | Randomised | 72 | 224 | 44 | 13.9 |
| Robertson et al. 2004 (13) | Non-randomised | 165 | 236 | 78 | 22.9 |
| Shindo & Chheda 2007 (14) | Non-randomised | 684 | 1043 | 377 | NA |
| Yarbrough et al. 2004 (15) | Non-randomised | 111 | 151 | 76 | 36.9 |
NA = not applicable