Stage/Gender E F G H
Female Male Female Male Female Male Female Male
French-Canadian (Demirjian et al.  [34]) 15,40 15,40 17,30 16,95 19,50 18,40 20,70 19,20
-1,05a -0,25a -0,60a 0,29a 0,21a 0,06a 0,46a -0,93a
American (Mincer et al. [13]) 16,9 (1,7) 17,3 (2,5) 17,7 (1,8) 17,5 (2,1) 19,1 (1,9) 18,3 (1,9) 20,9 (2,0) 20,5 (1,9)
0,45a 1,65a -0,20a 0,84a -0,19a -0,04a 0,66a 0,37a
Hispanic Americans (Solari & Abramovitch [9]) 16,1 (1,4) 15,8 (1,2) 17,3 (2,6) 16,3 (1,3) 18,5 (2,1) 17,1 (1,7) 21,7 (1,8) 20,6 (2,3)
-0,35a 0,15a -0,60a -0,36a -0,79a -1,24a 1,46a 0,47a
German (Olze et al.[2]) 17,2 (2,4) 16,7 (2,1) 19,0 (2,5) 18,2 (2,1) 21,6 (2,1) 21,2 (1,9) 22,9 (1,7) 22,5 (1,7)
0,75a 1,05a 1,10a 1,54a 2,31a 2,86a 2,66a 2,37a
Japonese (Olze et al. [2]) 18,2 (2,3) 18,6 (2,9) 20,3 (1,9) 19,8 (2,2) 21,5 (1,8) 21,8 (2,1) 22,1 (1,8) 22,5 (1,8)
1,75a 2,95a 2,4a 3,14a 2,21a 3,46a 1,86a 2,37a
South African (Olze et al. [2]) 15,9 (2,3) 15,2 (2,4) 17,4 (2,5) 18,7 (2,3) 19,8 (2,3) 20,8 (2,2) 22,4 (1,9) 22,6 (1,9)
-0,55a -0,45a -0,50a 2,48a 0,51a 2,46a 2,16a 2,47a
Spanish (Prieto et al. [8]) 15,99 (1,42) 15,22 (1,03) 16,83 (1,56) 16,43 (1,34) 18,41 (1,43) 17,92 (1,50) 19,66 (0,97) 19,74 (1,08)
-0,46a -0,43a -1,07a -0,23a -0,88a -0,42a -0,58a -0,39a
Portuguese (Our study, 2010) 16,45 (1,43) 15,65 (1,35) 17,90 (1,30) 16,66 (1,25) 19,29 (1,28) 18,34 (1,43) 20,24 (1,24) 20,13 (1,36)
Table 10: Mean age (standard deviation), in years, in different populations, based on Demirjian method (adapted from Prieto et al, 2005). a – Difference (in years) comparing to our study with Portuguese population.