MyopiaProgression.com · Teaching guide
VISUAL GUIDE 1 / 3
CHAMP-UK: two outcomes, each with its uncertainty
CHAMP-UK · preserved 0.01% atropine versus placebo · 289 children aged 6–12 · 2 years
Refraction0.33 diopters (D) · 95% CI 0.17–0.49
00.250.5 diopters (D)
Axial length0.14 millimeters (mm) · 95% CI 0.07–0.21
00.1250.25 millimeters (mm)
Dots: mean between-group differences favoring atropine. Lines: 95% confidence intervals. Each outcome uses its own labeled scale.
Refractive and axial outcomes are different measurements. Do not compare the line lengths across these two scales or treat either result as an individual prediction.
