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Table 1 Descriptive statistics of the FWLC of the right and left hands digits

From: Adjacent digit fingerprint white line count differences: a pointer to sexual dimorphism for forensic application

   Male Female
Digits Designation Min Max Mean ± SD Min Max Mean ± SD
Right thumb R1 0 6 1.03 ± 1.13 0 8 2.13 ± 1.66
Right index R2 0 8 0.47 ± 0.92 0 11 1.43 ± 1.78
Right middle R3 0 5 0.56 ± 0.94 0 9 1.87 ± 2.06
Right ring R4 0 10 0.58 ± 1.22 0 17 2.35 ± 2.81
Right little R5 0 10 0.49 ± 1.20 0 11 2.03 ± 2.40
Left thumb L1 0 5 1.24 ± 1.29 0 12 2.71 ± 1.90
Left index L2 0 9 0.85 ± 1.29 0 11 2.24 ± 2.03
Left middle L3 0 7 0.92 ± 1.38 0 15 2.53 ± 2.54
Left ring L4 0 7 0.93 ± 1.47 0 17 3.31 ± 2.99
Left little L5 0 5 0.66 ± 1.15 0 12 2.77 ± 2.89
  1. 25th–75th inter quartile range, min minimum, max maximum, SD standard deviation, d difference, R right, L left, 1–5 first to fifth digits