What percentage increase was observed in ADHD medication use in the chronic medication trend analysis?

• A. 11.6%
• B. 27%
• C. 63%
• D. 47%

Answer: (D)

In a chronic medication trend analysis, the percentage increase reflects how much use grew relative to the starting point. A 47% increase means the later value is 1.47 times the baseline. For example, if ADHD medication use at baseline was 100 patients, the follow-up would be about 147 patients, an increase of 47 patients, which is 47% of the baseline.

That’s why 47% is the best answer: it represents a nearly half growth from the starting point, matching a relative increase of that magnitude. The other options would imply smaller or larger relative changes (e.g., about 11.6% or 27% or 63%), which don’t align with a 1.47× rise.