Table 5 The characteristic of each LUSS quartile
From: Poor lung ultrasound score in shock patients admitted to the ICU is associated with worse outcome
Variable (n) | Quartile 1 (43) | Quartile 2 (47) | Quartile 3 (42) | Quartile 4 (43) | p |
|---|---|---|---|---|---|
Sex (male/female) | 27/16 | 30/17 | 25/17 | 26/17 | 0.974 |
Age | 55.8 ± 17.9 | 55.7 ± 19.1 | 63.6 ± 17.5 | 57.1 ± 16.8 | 0.136 |
APACHE II | 20.0 ± 6.9 | 22.2 ± 7.8 | 27.5 ± 11.1 | 25.5 ± 7.4 | 0.000# |
Heart rate | 112.5 ± 27.0 | 116.9 ± 21.6 | 121.5 ± 24.7 | 119.7 ± 23.1 | 0.340 |
Mean arterial pressure | 82.5 ± 16.6 | 78.2 ± 14.4 | 78.9 ± 16.5 | 78.4 ± 14.5 | 0.523 |
Urine output per hour | 50.0(20.0–80.0) | 50.0(20.0–120.0) | 40.0(4.3–72.5) | 60.0(30.0–90.0) | 0.291 |
Lactate | 2.2(1.7–4.2) | 3.2(2.1–7.5) | 3.5(2.2–5.8) | 4.0(2.4–9.6) | 0.014# |
PaO2/ FiO2 | 262.3 ± 141.1 | 253.0 ± 109.4 | 177.8 ± 110.1 | 153.2 ± 69.2 | 0.000# |
Length of mechanical ventilation/hours | 172.0(74.0–426.0) | 155.0(84.0–401.1) | 173.0(112.3–343.1) | 168.0(89.0–316.0) | 0.962 |
LUSS | 1.9 ± 1.6 | 7.2 ± 1.3 | 11.6 ± 1.3 | 17.5 ± 2.0 | 0.000# |
ICU length of stay/d | 17.0(9.0–38.0) | 15.0(9.0–31.0) | 13.5(6.0–30.0) | 11.0(5.0–21.0) | 0.138 |
Hospital length of stay/d | 26.0(17.0–51.0) | 28.0(13.0–43.0) | 23.0(13.0–31.3) | 17.0(5.0–35.0) | 0.038# |
28-day mortality/%(n/N) | 34.9(15/43) | 34.0(16/47) | 50.0(21/42) | 67.4(29/43) | 0.005# |