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Table 5 Age of onset substance abuse among the studied abusers

From: Association between male sex hormones and tramadol abuse

Substance abuse

Age of onset (mean±SD)

p-value

Tramadol

23.65 ± 5.46

0.008*

Tramadol and other substances

19.80 ± 5.75

  1. P-value (0.008) of independent T-test is significant