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Table 1 Comparison of LNIG and CG on gender

From: Risk of lingual nerve injuries in removal of mandibular third molars: a retrospective case-control study

  This study (LNIG) Almendros-Marqués et al, 2006 (CG) [15] Uematsu et al, 2015 (CG) [16] Cheng et al, 2010 (CG) [9] Blondeau et al, 2007 (CG) [17] Smith et al, 2013 (CG) [11]
Male (%) 27.8 47.3 41.1 39 41.6 41.5
Female (%) 72.1 52.7 58.9 61 58.4 58.5
Sample size (patients) 79 165 461 3595 327 1000
Power   0.86 0.68 0.59 0.67 0.74
P value   0.001 0.0294 0.07 0.0235 0.024
  1. Abbreviations: LNIG lingual nerve injury group, CG control group
  2. P value (chi-squared test): The sex ratio in this study was statistically compared to the sex ratio of the other past studies. P < 0.05 was considered to be statistically significant