Total | SARI- | SARI+ | |||||||
---|---|---|---|---|---|---|---|---|---|
Cohort | Proportion ( n ) | Odds ratio (95% CI) | P value | Proportion ( n ) | Odds ratio (95% CI) | P value | Proportion ( n ) | Odds ratio (95% CI) | P value |
Intensive care treatment | |||||||||
Delta | 16.6% (275) | 8.3% (49) | 21.2% (226) | ||||||
Delta to Omicron | 16.2% (177) | 1.14 (0.91–1.42) | 0.257 | 10.9% (57) | 1.55 (1.00-2.39) | 0.049 | 21.1% (120) | 1.11 (0.85–1.46) | 0.435 |
Omicron | 9.5% (167) | 0.72 (0.57–0.91) | 0.005 | 7.2% (88) | 1.16 (0.78–1.74) | 0.466 | 14.8% (79) | 0.73 (0.54-1.00) | 0.050 |
Mechanical ventilation | |||||||||
Delta | 12.2% (202) | 1.0% (6) | 18.4% (196) | ||||||
Delta to Omicron | 10.8% (118) | 1.04 (0.81–1.34) | 0.770 | 0.8% (4) | 0.83 (0.23-3.00) | 0.782 | 20.0% (114) | 1.28 (0.97–1.69) | 0.079 |
Omicron | 4.0% (70) | 0.42 (0.31–0.57) | < 0.001 | 0.9% (11) | 1.16 (0.42–3.21) | 0.776 | 11.0% (59) | 0.62 (0.44–0.87) | 0.006 |
In-hospital mortality* | |||||||||
Delta | 16.3% (254) | 3.9% (22) | 23.4% (232) | ||||||
Delta to Omicron | 12.2% (126) | 0.90 (0.70–1.17) | 0.437 | 2.8% (14) | 0.95 (0.46–1.94) | 0.885 | 21.1% (112) | 1.02 (0.76–1.36) | 0.915 |
Omicron | 5.5% (94) | 0.42 (0.32–0.56) | < 0.001 | 1.1% (13) | 0.43 (0.21–0.88) | 0.021 | 15.7% (81) | 0.63 (0.45–0.87) | 0.005 |