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Biostatistics & Research · single question

A study of 2000 bisphosphonate patients split into exercisers vs non-exercisers found 250 of the exercisers developed MRONJ versus 650 of the non-exercisers. It can be concluded that patients who exercise have:

  1. A LOWER risk of developing MRONJ
  2. A HIGHER risk of developing MRONJ
  3. The same risk as non-exercisers
  4. No measurable difference
Show answer and explanation

Correct answer: A. A LOWER risk of developing MRONJ

  • A. Correct. Fewer exercisers (250) developed MRONJ than non-exercisers (650), so physical exercise is associated with a lower risk of MRONJ.
  • B. This reverses the data — fewer exercisers were affected.
  • C. The counts differ substantially, so the risks are not equal.
  • D. There is a clear numerical difference favoring exercisers.

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