Table 2

Dimensions of the skin layers at birth, with comparisons between the assessed areas of the body

Median
(95% CI)
Min–MaxCV* (%)Comparisons
P value†P value‡P value§
Thickness of the corneum stratum (μm)
 Palm63.6 (21.3 to 81.9)6.1–154.532.90.707
 Sole72.4 (7.6 to 176.0)7.6–176.034.10.002
 Periumbilical abdominal area18.0 (8.0 to 43.4)8.0–43.446.60.010
Epidermal thickness (μm)
 Palm72.0 (33.0 to 101.7)33.0–101.744.20.701
 Sole78.8 (41.2 to 128.5)41.2–128.541.6<0.001
 Periumbilical abdominal area44.3 (19.0 to 61.2)19–61.241.7<0.001
Epidermal total thickness (μm)
 Palm152.1 (43.9 to 251.9)43.9–251.977.10.618
 Sole146.2 (122.6 to 170.3)56.2–276.474.5<0.001
 Periumbilical abdominal area66.0 (28.1 to 99.5)28.1–99.585.9<0.001
Dermal thickness (μm)
 Palm384.1 (166.0 to 751.0)166.0–751.021.90.9770.002<0.001
 Sole396.3 (174.0 to 493.2)174.0–493.220.3
 Periumbilical abdominal area724.0 (287.0 to 1107.0)287.0–1107.018.7
  • *CV: average of the coefficient of variation obtained for each image.

  • †Difference between palm and sole areas.

  • ‡Difference between palm and periumbilical abdominal area.

  • §Difference between a sole and periumbilical abdominal area.