TABLE 1.

Demographic characteristics of participants

Total n = 332		Male n = 189 (56.9%)	Female n = 143 (43.1%)	Total n = 332
Age	Mean (95% CI)	44.1 (42.1–46.2)	41.8 (39.6–44.0)	43.1 (41.6–44.6)
Height (cm)	Mean (95% CI)	177.3 (176.2–178.5)	165.6 (164.5–166.7)	172.3 (171.3–173.3)
Weight (Kg)	Mean (95% CI)	80.8 (79.0–82.6)	65.3 (63.7–66.9)	74.1 (72.6–75.6)
BMI	Mean (95% CI)	25.7 (25.2–26.1)	23.8 (23.3–24.3)	24.9 (24.5–25.2)
Previous altitude 3500–5000 m	n (% yes)	44 (23.4%)	40 (28.2%)	84 (25.5%)
Previous altitude >5000 m	n (% yes)	49 (26.1%)	27 (19.0%)	76 (23.0%)
Previous AMS	n (% yes)	9 (4.8%)	11 (7.8%)	20 (6.1%)