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Table 2 Demographics: Age distribution in the intent-to-treat, in the excluded and safety, and in the per-protocol populations.

From: Comparison of mannitol and methacholine to predict exercise-induced bronchoconstriction and a clinical diagnosis of asthma

  Intent-to-Treat Excluded and Safety Per-Protocol
Age Number Percent Number Percent Number Percent
Total 391   509   375  
6–7 6 1.5% 9 1.8% 6 1.6%
8–9 7 1.8% 11 2.2% 7 1.9%
10–11 20 5.1% 25 4.9% 19 5.1%
12–15 38 9.7% 48 9.4% 36 9.6%
16–18 44 11.3% 57 11.2% 43 11.5%
19–24 113 28.9% 135 26.5% 108 28.8%
25–30 69 17.6% 84 16.5% 68 18.1%
31–35 28 7.2% 44 8.6% 25 6.7%
36–40 31 7.9% 44 8.6% 29 7.7%
41–45 19 4.9% 25 4.9% 19 5.1%
46–50 16 4.1% 27 5.3% 15 4.0%