A table of hormone levels of interest to transgender people. Source: Massachusetts General Hospital, New England Journal of Medicine. (N Engl J Med 2004;351:1548-63). The first set of figures are in units commonly used in the US, while the second set are in standard international units. These ranges represent normal values for people not receiving any kind of hormone therapy. Levels achieved during appropriate transgender hormone therapy may or may not match these ranges. Note: the word “menstruating” in the table means, old enough so that menses has begun, but before menopause — it doesn’t necessarily mean during the actual days of monthly flow.