Fig. 1From: Secular trends in testosterone- findings from a large state-mandate care providerTrend of testosterone serum levels per age between 2006 and 2019. (a) Mean total testosterone in serum (nanomole/liter) for patients in a given age for the years 2006ā2019 grouped to four year-groups, error bars show standard deviation of the mean. (b) Serum total testosterone values (nanomole/liter) distributions within three age groups over the yearsBack to article page