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Table 4 Group 1 (Trekkers) - Subjects arriving at each laboratory and reasons for absence from laboratory

From: Design and conduct of Caudwell Xtreme Everest: an observational cohort study of variation in human adaptation to progressive environmental hypoxia

  Kathmandu
(1300 m)
Namche
(3500 m)
Pheriche
(4250 m)
Everest Base Camp
(5300 m)
No of Trekkers Arriving at Laboratory 198 197 195 190
Reason for Absence from Laboratory
- gender, age, expedition day
nil absent Respiratory Tract infection (1)
M, age 73, Day 1
Abcess (1)
M, age 49, Day 3
AMS (1)
F, age 55, Day 3
AMS (1)
F, Age 39, Day 10
Angina (1)
F, age 60, Day 7
Respiratory Tract Infection (1)
M, age 68, Day 7
Diarrhoea and Vomiting (1)
F, age 59, Day 10
Recurrent Cluster Headache (1)
M, age 62, Day 8
  1. Notes: AMS = Acute Mountain Sickness; M = male; F = Female