Document Classification

Section Type: RESULTS

Text: Oxygen given before or after the ascent reduced maximal dyspnoea from 49. 1 mm (95 % CI 35. 5 to 62. 7) to 41. 7 mm (95 % CI 34. 3 to 49. 1) of a 100 mm visual analogue scale, reduced desaturation (oxygen before 4. 9 % (95 % CI 3. 6 to 6. 2), oxygen after 6. 4 % (5. 3 to 7. 5), air before and after 8. 2 % (6. 7 to 9. 7 %)), but did not affect time of ascent (air before : 5. 1 s (95 % CI 3. 4 to 6. 9) reduction from training ascent ; oxygen before : 6. 1 s (95 % CI 2. 9 to 9. 2) reduction).