Table 1.
Baseline characteristics of 487 of 614 participants who completed study on effects of prophylactic agents against acute mountain sickness
|
Study groups
|
|||||
|---|---|---|---|---|---|
| Variables | All participants (n=487) | Placebo (n=119) | Acetazolamide group (n=118) | Ginkgo group (n=124) | Combined acetazolamide and ginkgo (n=126) |
| No (%) male | 337 (69) | 88 (74) | 79 (67) | 83 (67) | 88 (70) |
| Mean (SD) age (years) | 36.6 (10.9) | 36.4 (10.8) | 36.4 (11.0) | 36.7 (10.5) | 36.7 (11.4) |
| No (%) if trekkers starting from 2800 m* | 395 (81) | 91 (76) | 101 (86) | 104 (84) | 99 (79) |
| Mean No (SD) nights to ascend from 2800 m | 4.7 (1.3) | 4.6 (1.2) | 4.7 (1.1) | 4.5 (1.9) | 4.9 (1.5) |
| No (%) enrolled at 4358 m† | 259 (53) | 67 (56) | 58 (49) | 68 (55) | 66 (52) |
| No (%) with baseline Lake Lousie score of 1‡ | 27 (5) | 6 (5) | 7 (6) | 6 (5) | 8 (6) |
| Mean (SD) baseline oxygen saturation | 85.4 (4.3) | 85.9 (4.3) | 85.3 (4.4) | 84.8 (4.8) | 85.5 (3.7) |
| No (%) lost to follow up§ | 127 (26) | 32 (27) | 34 (29) | 33 (27) | 28 (22) |
*
Lukla airport is at about 2800 m, and trekkers starting from Jiri (2000 m) pass through Lukla.
†
Enrolment occurred in villages of Dingboche (4358 m) and Pheriche (4280 m).
‡
Most participants at baseline scored zero.
§
From original 614 participants.