Table 2.
Regression analyses of the risk for AMS in the entire cohort
| Variable | Univariate analysis | Multivariate analysis | ||
|---|---|---|---|---|
| OR (95% CI) | P-value | OR (95% CI) | P-value | |
| Age | 0.98 (0.93–1.03) | 0.361 | Not entered | |
| Female sex | 5.74 (2.23–14.78) | < 0.001 | 6.32 (2.25–17.74) | < 0.001 |
| Height | 0.92 (0.86–0.99) | 0.023 | – | |
| Weight | 0.95 (0.90–0.99) | 0.016 | – | |
| Smoking | 0.28 (0.12–0.67) | 0.004 | – | |
| HR at rest | 1.02 (0.99–1.06) | 0.255 | Not entered | |
| SpO2 at rest | 1.47 (1.06–2.03) | 0.021 | – | |
| SBP at rest | 1.00 (0.97–1.03) | 0.936 | Not entered | |
| DBP at rest | 1.00 (0.97–1.04) | 0.856 | Not entered | |
| ΔeHR | 0.98 (0.95–1.01) | 0.231 | Not entered | |
| ΔeSpO2 | 0.83 (0.67–1.03) | 0.091 | 0.63 (0.47–0.84) | 0.002 |
| ΔeSBP | 1.00 (0.97–1.02) | 0.778 | Not entered | |
| ΔeDBP | 1.00 (0.97–1.03) | 0.982 | Not entered | |
| ΔhHR | 1.00 (0.97–1.03) | 0.893 | Not entered | |
| ΔhSpO2 | 0.97 (0.88–1.07) | 0.525 | Not entered | |
| ΔhSBP | 0.97 (0.94–0.99) | 0.016 | 0.96 (0.93–1.00) | 0.029 |
| ΔhDBP | 0.97 (0.94–1.00) | 0.059 | – | |
OR Odds ratio, 95% CI 95% confidence intervals, AMS Acute mountain sickness, BMI Body mass index, HR Heart rate, SpO2 Pulse oxygen saturation, SBP Systolic blood pressure, DBP Diastolic blood pressure, Δe Change after exercise testing, Δh Change after arriving at 4100 m