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. 2019 Jun 28;14(6):e0218992. doi: 10.1371/journal.pone.0218992

Table 5. Comparisons between cross-sectional studies of penile nodules in prison.

Total male prisoners surveyed Prisoners with penile implants Prisoners with penile implants inserted while in prison
n n % n % % of total surveyed
French Guiana prison study 221 149 67.4% 127 85.2% 57.5%
    French Guiana newly incarcerated study (Nacher et al., 2018) 492 145 29.6% N/A N/A N/A
Australian prisoners study (Yap et al., 2013) 2018 118 5.8% 87 73.7% 4.3%