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. 2018 Jan 12;11:660. doi: 10.3389/fnhum.2017.00660

Table 1.

The means and standard deviations of ages and the pubertal development scale (PDS) scores for each group.

Pre-/early puberty Mid-/late puberty
Boys (N = 19) Girls (N = 17) Diff. Boys (N = 18) Girls (N = 19) Diff.
Age 11.00 ± 0.67 11.06 ± 0.43 t(34) = −0.31, ns 12.11 ± 0.58 11.37 ± 0.60 t(35) = 3.83, P < 0.01
PDS 3.84 ± 0.83 3.82 ± 0.39 t(34) = 0.08, ns 6.72 ± 0.90 7.37 ± 1.64 t(35) = −1.48, ns