|
Variables
|
COVID-19 ARDS
|
Non-COVID ARDS
|
|---|
|
Entire group N = 23
|
Entire group N = 145
|
P valuea
|
PaO2/FiO2-matched N = 23
|
P valuea
|
Compliance-matched N = 23
|
P valuea
|
|---|
|
Age, years
|
70 (63–74)
|
67 (59–74)
|
0.222
|
75 (70–79)
|
0.092
|
66 (60–74)
|
0.159
|
|
Male sex
|
15 (65.2%)
|
97 (66.9%)
|
0.874
|
17 (73.9%)
|
0.522
|
16 (69.6%)
|
0.753
|
|
Height, cm
|
165 ± 9
|
163 ± 8
|
0.374
|
163 ± 10
|
0.614
|
164 ± 8
|
0.791
|
|
Body weight, kg
|
70 (58–79)
|
61 (53–70)
|
0.018
|
57 (51–69)
|
0.015
|
64 (55–69)
|
0.132
|
|
Body mass index, kg/m2
|
25.6 (22.9–27.4)
|
22.9 (20.8–26.0)
|
0.024
|
22.5 (19.3–24.7)
|
0.009
|
22.7 (20.5–27.2)
|
0.121
|
|
Interval between intubation and the first prone positioning session, days
|
1 (0–2)
|
2 (1–5)
|
0.009
|
1 (0–3)
|
0.116
|
2 (1–4)
|
0.047
|
|
Total number of sessions of prone positioning
|
4 (3–9)
|
2 (1–4)
|
< 0.001
|
2 (1–4)
|
0.008
|
2 (1–4)
|
0.011
|
|
Mean duration of prone positioning per session, hours
|
18 (17–19)
|
18 (16–19)
|
0.653
|
17 (16–18)
|
0.180
|
17 (16–20)
|
0.231
|
|
Charlson comorbidity index
|
4 (3–4)
|
5 (3–8)
|
0.012
|
5 (4–6)
|
0.011
|
5 (4–7)
|
0.032
|
|
APACHE II score
|
20 (12–25)
|
29 (25–33)
|
< 0.001
|
30 (26–35)
|
< 0.001
|
29 (25–37)
|
< 0.001
|
|
SAPS II score
|
42 (31–61)
|
65 (55–71)
|
< 0.001
|
66 (62–78)
|
< 0.001
|
65 (58–78)
|
< 0.001
|
|
SOFA score
|
8 (5–11)
|
12 (9–14)
|
< 0.001
|
12 (9–14)
|
0.002
|
13 (11–15)
|
< 0.001
|
- APACHE acute physiology and chronic health evaluation, ARDS acute respiratory distress syndrome, SAPS Simplified Acute Physiology Score, SOFA sequential organ failure assessment
- aP values are for comparison between patients with COVID-19 ARDS and patients with non-COVID ARDS
