Symptoms and signs of acute mountain sickness in smokers at 4525 masl
| LLS symptom intensity | n (%) | ||||
| 0 | 1 | 2 | 3 | Total | |
| Headache | 104 (57) | 42 (23) | 22 (12) | 14 (8) | 78 (43) |
| Dizziness or light-headedness | 144 (79) | 22 (12) | 13 (7) | 3 (2) | 38 (21) |
| Weakness or fatigue | 81 (45) | 50 (27) | 42 (23) | 6 (3) | 101 (55) |
| Anorexia, nausea or vomiting | 111 (61) | 39 (21) | 26 (14) | 6 (3) | 71 (39) |
| Difficulty sleeping | 86 (47) | 42 (23) | 45 (25) | 9 (5) | 96 (53) |
| Reduction in activity | 107 (59) | 58 (32) | 15 (8) | 2 (1) | 75 (41) |
| Change in mental status | 180 (99) | 2 (1) | 0 | 0 | 2 (1) |
| Ataxia | 178 (98) | 4 (2) | 0 | 0 | 4 (2) |
| Peripheral oedema | 158 (87) | 18 (10) | 6 (3) | 0 | 24 (13) |
See table 1.