Research Article
Characteristics and Clinical Course of Adult Inpatients with SARS-CoV-2 Pneumonia at High Altitude
Table 4
Multivariate analysis of risk factors associated with invasive mechanical ventilation in patients with SARS-CoV-2 pneumonia.
| Factors | OR (95% CI) | value |
| Age, years | <50 | 1 (ref) | ≤0.001 | 50–65 | 2.05 (1.03–4.10) | 0.04 | >65 | 5.25 (2.66–10.36) | ≤0.001 | Male sex | 2.36 (1.40–3.97) | 0.001 |
| SpO2 <90% | 0.38 (0.23–0.63) | ≤0.001 |
| White blood cell count, ×109/L | <4 | 1 (ref) | ≤0.001 | 4 to 10 | 1.77 (0.47–6.64) | 0.40 | >10 | 5.73 (1.46–22.46) | 0.01 |
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