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. 2023 Jul 21;27:294. doi: 10.1186/s13054-023-04583-7

Table 1.

Differences in baseline characteristics between responders and non-responders to vasopressin loading

n Responders Non-responders p value
MAP change > 22 mmHg MAP change ≤ 22 mmHg
62 30
Age, years 75.9 ± 11.6 77.7 ± 11.5 0.51
Male, n (%) 43 (69.4) 20 (66.7) 0.84
Height, cm 158.2 ± 8.4 159.9 ± 6.3 0.36
Body weight, kg 56.0 ± 13.8 52.0 ± 8.9 0.17
SOFA 8 (6, 10) 8 (5, 11) 0.93
APACHEII 19 (14, 23) 20 (13.5, 25.5) 0.99
Mechanical ventilation, n (%) 43 (69.4) 20 (66.7) 0.93
Blood purification, n (%) 22 (35.4) 14 (46.7) 0.22
Extracorporeal membrane oxygenation, n (%) 4 (6.5) 2 (6.7) 0.92
Atrial fibrillation n (%) 16 (25.8%) 6 (21.4%) 0.65
Vasopressin administration from noradrenaline start, hours 5 (1.4, 15.7) 1.75 (0.5, 4.9) 0.018
Noradrenaline dose before loading, μg/kg/min 0.3 (0.22, 0.48) 0.4 (0.3, 0.68) 0.14
Catecholamine index before loading 30 (22, 47.5) 47 (30, 67.5) 0.15
Max lactate within 24 h of loading, mmol/L 2.6 (1.6, 4.6) 4.7 (2.9, 8.1) 0.008
Vasopressin concentration, pg/ml 5.8 (3.5, 10.6) 6.7 (2.4, 19.8) 0.76
ACTH, pg/ml 22.8 (9.7, 45.4) 36.4 (22.3, 92.5) 0.018
cOrtisol, μg/dL 21.9 (14.6, 34.0) 26.1 (20.0, 41.2) 0.11

Data were expressed as a mean ± standard deviation for normally distributed continuous variables or median (interquartile range) for non-normally distributed continuous variables. Categorical variables were expressed as n (%)

MAP mean arterial pressure; SOFA sequential organ failure assessment; APACHE acute physiology and chronic health evaluation; ACTH adrenocorticotropic hormone