Osteoporosis is defined by a bone mineral density more than how many standard deviations below the young adult mean?
A. 1.5 standard deviations
B. 2.0 standard deviations
C. 2.5 standard deviations
Answer in the poll, then explain your rationale below in the comments! I'll follow up with my breakdown of the question after enough people have responded.
From Chapter 7: Age- and Sex-Related Differences and Their Implications
DCO Code: 1.I
NOTE: Image is for illustration purposes, not needed to answer the question.