an increasing trendP < 0.001
Results In 1236 saliva samples from 903 boys aged between 11 and 16 years, salivary androgens except DHEA exhibited an increasing trend with an advancing age (ANOVA, P < 0.001), with salivary testosterone and A4 concentration showing the strongest correlation ( r = 0.55, P < 0.001 and r = 0.48, P < 0.001, respectively).