From: Epidemiological and clinical risk factors related to severe COVID-19 in Iran: a multi-center study
 | Total | Severe | OR (95% CI) |
---|---|---|---|
N (%) | N (%)** | ||
High flow nasal cannula | Â | Â | Â |
 No | 39 (90.5) | 37 (94.9) | 1 |
 Yes | 374 (9.5) | 108 (28.9) | 0.02 (0.005,0.093)* |
Non-Invasive mechanical ventilation | Â | Â | Â |
 No | 405 (98) | 137 (33.8) |  |
 Yes | 8 (2) | 8 (100.0) |  |
Invasive mechanical ventilation | Â | Â | Â |
 No | 379 (91.7) | 112 (29.6) | 1 |
 Yes | 34 (8.3) | 33 (97.1) | 78.67 (10.63,582.25)* |
ICU admission | Â | Â | Â |
 No | 366 (88.6) | 102 (27.9) | 1 |
 Yes | 47 (11.4) | 43 (91.5) | 27.82 (9.74,79.49)* |
Intubation | Â | Â | Â |
 No | 375 (90.8) | 109 (29.1) | 1 |
 Yes | 38 (9.2) | 36 (94.7) | 43.93 (10.40,185.63)* |
Mechanical ventilation | Â | Â | Â |
 No | 377 (91.3) | 110 (29.2) | 1 |
 Yes | 36 (8.7) | 35 (97.2) | 84.96 (11.50,627.82)* |
Oxygen saturation | Â | Â | Â |
 More than 0.93 | 153 (37) | 30 (19.6) | 1 |
 Less/equal 0.93 | 258 (63) | 114 (44.2) | 3.25 (2.03,5.18)* |
Mean ± SD | Low/Moderate | Sever/Critically sever | P |
---|---|---|---|
Heart rate | 92.33 ± 12.94 | 97.75 ± 18.57 | 0.002 |
Respiratory rate | 18.92 ± 4.37 | 22.19 ± 6.53 |  < 0.001 |
Systolic blood pressure | 115.95 ± 16.35 | 118.36 ± 19.21 | 0.182NS |
Diastolic blood pressure | 73.18 ± 11.14 | 74.57 ± 11.46 | 0.234NS |