| Studies | Population | Study type | Age (y) | Sample size: subjects | Male | Female | Sample size: legs | Right | Left |
| Adachi, 1909 | Japanese | Cadaveric | Adults | — | — | — | 630 | — | — | Ashaolu et al., 2013 | Nigerian | Clinical | 16–25 | 100 | 47 | 53 | 200 | 100 | 100 | Bertelli and Khoury, 1991 | French | Cadaveric | Adults | 22 | — | — | 44 | 22 | 22 | Bhatt et al., 2010 | Indian | Cadaveric | Adults | — | — | — | 94 | — | — | Bourdon and Petitdant, 2012 | French | Clinical | 20.43 | 86 | 26 | 60 | 86 | — | — | de Gusmão et al., 2013 | Brazilian | Cadaveric | Adults | — | — | — | 64 | 32 | 32 | Domagala et al., 2003 | Polish | Cadaveric | Fetuses | 33 | — | — | 66 | 33 | 33 | Domagala et al., 2006 | Polish | Cadaveric | Fetuses | 193 | 96 | 97 | 386 | 193 | 193 | Ercikti et al., 2016 | Turkish | Cadaveric | Adults | 17 (+11 legs) | — | — | 44 | 23 | 21 | Johnson, 1973 | Caucasians (94%) | Cadaveric | Adults | 31 (+19 legs) | 42 | 39 | 81 | 40 | 41 | Joshi et al., 2006 | Indian | Cadaveric | Adults | 110 | — | — | 220 | 110 | 110 | Kaneff, 1980 | French | Cadaveric | Fetuses | — | — | — | 34 | 10 | 24 | Koganei et al., 1903 | Japanese | Cadaveric | Adults | — | — | — | 308 | — | | Krammer et al., 1979 | Austrian | Cadaveric | Adults | — | — | — | 169 | — | — | Larico and Jordan, 2005 | Bolivian | Cadaveric | Adults | 46 | — | — | 92 | 46 | 46 | Le Double, 1897 | French | Cadaveric | Adults | 120 | 60 | 60 | 240 | 120 | 120 | Loth, 1913 | African | Cadaveric | Adults | 56 | — | — | 112 | 56 | 56 | Marin et al., 2006 | Brazilian | Cadaveric | Adults | 16 | 16 | 0 | 32 | 16 | 16 | Nakano, 1923 | Chinese | Cadaveric | Adults | 39 (+6 legs) | 39 | 6 | 84 | 40 | 44 | Oyedun et al., 2014 | Nigerian | Clinical | 15–70 | 169 | 115 | 54 | 338 | 169 | 169 | Posmykiewicz, 1934 | Polish (907) | Clinical | Adults | 1000 | 598 | 402 | 2000 | 1000 | 1000 | Jews (93) | Ramirez et al., 2010 | Chilean | Clinical | 18–26 | 168 | 68 | 100 | 336 | 168 | 168 | Reimann, 1981 | German | Cadaveric | Adults | — | — | — | 200 | — | — | Rourke et al., 2007 | British | Cadaveric | Adults | 41 | 22 | 19 | 82 | 41 | 41 | Schwalbe and Pfitzner, 1894 | German/French | Cadaveric | Adults | — | 363 | 174 | 537 | 273 | 264 | Sokolowska-Pituchowa et al., 1974 | Polish | Cadaveric | Adults | — | — | — | 101 | | | Sokolowska-Pituchowa et al., 1979 | Polish | Cadaveric | Fetuses | 42 | — | — | 84 | 42 | 42 | Stevens et al., 1993 | British | Cadaveric | 62–100 | — | 20 | 20 | 40 | 35 | 5 | Surekha et al., 2015 | Indian | Cadaveric | 45–70 | 50 | 50 | 0 | 100 | 50 | 50 | Verma and Seema, 2015 | Indian | Cadaveric | 30–70 | 30 | 28 | 2 | 60 | 30 | 30 | Werneck, 1957 | Caucasian (mainly) and Black | Cadaveric | 5 months–62 y | 45 | — | — | 90 | 45 | 45 | Witvrouw et al., 2006 | Belgian | Clinical | 17–21 | 100 | 50 | 50 | 200 | 100 | 100 | Wood, 1866 | British | Cadaveric | Adults | 32 | 28 | 4 | 64 | 32 | 32 | Wood, 1867 | British | Cadaveric | Adults | 34 | 22 | 12 | 68 | 34 | 34 | Wood, 1868 | British | Cadaveric | Adults | 36 | 18 | 18 | 72 | 36 | 36 |
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