Figure 2. Thyrotropin Levels of Participants in a Study of the Association Between Levothyroxine Treatment and Thyroid-Related Symptoms Among Adults Aged 80 Years and Older With Subclinical Hypothyroidism.
Mean follow-up duration was 17 months. The boxes indicate the first and third quartiles and the median, the whiskers extend to the highest and lowest values within 1.5 × interquartile range, and the dots represent outliers.