Figure 2

Altered 2-hydroxyestrone to 2-hydroxy-17β-estradiol metabolic ratio in sex difference. Its metabolic ratio could reveal 17β-hydroxysteroid dehydrogenase in the estrogen metabolism. Line within the box represents the median, lower boundary of the box indicates 25%, and the upper boundary of the box indicates 75%. Whiskers above and below indicate the maximum and minimum steroid levels. Dots above and below indicate the plot outliers with the 10^th and 90^th percentiles.