(I) Age group (J) Age group Epidermal thickness (µm) Dermal thickness(µm) Number of hairfollicles/field Mean Difference (I-J) P value Mean Difference (I-J) P value Mean Difference (I-J) P value Early weaning Late weaning  -26.42 0.2 -61.67 1 54.60 0.000* Pre-pubertal -27.99 0.1 -600.39 0.000* 45.00 0.000* Adolescent -119.12 0.000* -1181.32 0.000* 64.20 0.000* Adulthood 19.45 1 -311.03* 0.000* 63.60 0.000* 2nd year 29.35 0.1 -421.12 0.000* 63.80 0.000* Late weaning  Early weaning 26.42 0.2 61.67 1 -54.60 0.000* Pre-pubertal -1.57 1 -538.72 0.000* -9.60 0.000* Adolescent -92.69 0.000* -1119.65 0.000* 9.60 0.000* Adulthood 45.88 0.002* -249.36 0.000* 9.00 0.000* Aged-phase 55.77 0.000* -359.44 0.000* 9.20 0.000* Pre-pubertal Early weaning 27.99 0.1 600.39 0.000* -45.00 0.000* Late weaning  1.57 1 1119.65 0.000* -9.60 0.000* Adolescent -91.12 0.000* -580.93 0.000* 19.20 0.000* Adulthood 47.45 0.002* 289.36 0.000* 18.60 0.000* Aged-phase 57.35 0.000* 179.276 0.001* 18.80 0.000* Adolescent Early weaning 119.12 0.000* 1181.32 0.000* -64.20 0.000* Late weaning  92.69 0.000* 1119.65 0.000* -9.60 0.000* Pre-pubertal 91.12 0.000* 580.93 0.000* -19.20 0.000* Adulthood 138.57 0.000* 870.29 0.000* -0.60 1 Aged-phase 148.47 0.000* 760.20 0.000* -0.40 1 Early weaning -19.45 1 311.03* 0.000* -63.60 0.000* Adulthood Late weaning  -45.88 0.002* 249.36 0.000* -9.00 0.000* Pre-pubertal -47.45 0.002* -289.36 0.000* -18.60 0.000* Adolescent -138.57 0.000* -870.29 0.000* 0.60 1   Aged-phase 9.89 1 -110.08 0.1 0.20 1 Early weaning -29.35 0.1 421.12 0.000* -63.80 0.000* Aged-phase Late weaning  -55.77 0.000* 359.44 0.000* -9.20 0.000* Pre-pubertal -57.35 0.000* -179.276 0.001* -18.80 0.000* Adolescent -148.47 0.000* -760.20 0.000* 0.40 1 Adulthood -9.89 1 110.08 0.1 -0.20 1

*= Statistically significant

Table 4: Comparison between the means of the average area of the epidermal thickness, dermal thickness and number of the hair follicles of the different studied groups.