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Table 2 Intensive care management and outcomes of patients with severe SARS-CoV-2 infection (n = 158) during their intensive care unit stay according to the SARS-CoV-2 infecting “sublineage groups” (BA.2 vs BA.4/BA.5 vs BQ.1.1 group)

From: Clinical phenotypes and outcomes associated with SARS-CoV-2 Omicron variants BA.2, BA.5 and BQ.1.1 in critically ill patients with COVID-19: a prospective, multicenter cohort study

 

Data available

All patients

BA.2

BA.4/BA.5

BQ.1.1 group

p-value

N = 158

N = 50

N = 61

N = 47

Invasive MV

158

49 (31.2)

16 (32.0)

20 (33.3)

13 (37.7)

0.812

Prone positioning

158

28 (19.7)

11 (23.9)

11 (20.0)

6 (14.6)

0.553

MV duration, days

158

9 (3;18)

12 (5;25)

9 (2;17)

4 (2;14)

0.213

Live-ventilator free days at day 28

158

28 (0;28)

28 (0;28)

28 (0;28)

28 (6;28)

0.823

ECMO support

158

2 (1.3)

1 (2.0)

1 (1.7)

0 (0)

1.000

Vasopressor support

158

46 (29.5)

13 (26.0)

19 (31.7)

14 (30.4)

0.797

Renal replacement therapy

158

16 (10.2)

4 (8.0)

7 (11.7)

5 (10.6)

0.847

Ventilator-acquired pneumonia (among IMV)a

49

20 (40.8)

7 (43.8)

8 (40.0)

5 (38.5)

1.000

CAPA

158

8 (5.1)

5 (10.0)

2 (3.3)

1 (2.2)

0.160

Dexamethasone

158

113 (72.0)

38 (76.0)

42 (70.0)

33 (70.2)

0.773

Other steroids

158

0

0

0

0

Tocilizumab

158

30 (19.4)

14 (28.0)

11 (18.6)

5 (10.9)

0.104

Nirmatrelvir-ritonavir

157

14 (8.9)

2 (4.0)

10 (16.7)

2 (4.3)

0.028

Monoclonal antibodies

158

18 (13.0)

10 (20.8)

2 (3.8)

6 (15.8)

0.022

 Casirivimab-Imdevimab

158

1 (5.6)

0 (0)

0 (0)

6 (15.8)

0.444

 Tixagevimab-Cilgavimab

158

17 (94.4)

10 (100.0)

2 (100.0)

5 (3.3)

0.444

 Sotrovimab

158

0

0

0

0

Duration of ICU stay, days

158

     

 All patients

158

8 (4; 16)

11 (5; 22)

7 (3; 15)

6 (4; 12)

0.048

 Survivors only

121

7 (3; 16)

9 (5; 22)

6 (3; 14)

6 (4; 15)

0.069

Day-28 mortality

158

37 (23.7)

11 (22.0)

16 (26.7)

10 (21.7)

0.791

  1. Results are N (%), means (± standard deviation) or medians (interquartile range); MV: mechanical ventilation; ECMO: extracorporeal mechanical ventilation; VAP: ventilator-acquired pneumonia; IMV: invasive mechanical ventilation; CAPA: COVID-19-associated pulmonary aspergillosis; aVAP episodes were recorded per definition in patients under IMV since more than 48 h; Two-tailed p-values come from unadjusted comparisons using Chi square or Fisher’s exact tests for categorical variables, and t-tests or Mann–Whitney tests for continuous variables, as appropriate. No adjustment for multiple comparisons was performed; Bolded p-values are significant at the p < 0.05 level