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Table 1 Patient characteristics

From: Fluid responsiveness prediction using Vigileo FloTrac measured cardiac output changes during passive leg raise test

  All Responders Non-responders  
n = 33 n = 10 n = 23 p
Age 60.0 (13.6) 58.4 (16.2) 60.7 (12.7) 0.70
Sex
 Male 15 (45 %) 4 (40 %) 11 (48 %) 0.97
 Female 18 (55 %) 6 (60 %) 12 (52 %)  
Weight (kg) 72.1 (12.9) 75.0 (14.1) 70.9 (12.4) 0.44
APACHE II score 19.9 (6.9) 19.0 (5.8) 20.4 (7.5) 0.58
Died in hospital
 Yes 16 (48 %) 7 (70 %) 9 (39 %) 0.21
 No 17 (52 %) 3 (30 %) 14 (61 %)  
Admission to PLR (h) 26 [18, 52] 38 [21,102] 26 [16, 42] 0.25
Arrhythmia
 Present 3/32 (9 %) 1/9 (11 %) 2/23 (9 %) 1.00
 Absent 29/32 (91 %) 8/9 (89 %) 21/23 (91 %)  
Tidal volume (ml) 510 [463, 563] 540 [473, 660] 491 [460, 549] 0.39
Plateau pressure (cmH2O) 26.6 (7.1) 26.4 (5.5) 26.7 (7.7) 0.90
PEEP (cmH2O) 8.5 (2.5) 8.9 (2.8) 8.4 (2.4) 0.60
Respiratory rate (/min) 16.8 (4.2) 15.5 (2.4) 17.3 (4.7) 0.15
Spontaneous breathing
 Yes 6/30 (20 %) 2/9 (22 %) 4/21 (19 %) 1.00
 No 24/30 (80 %) 7/9 (78 %) 17/21 (81 %)  
Arterial line site:
Femoral 4 (12 %) 1 (10 %) 3 (13 %) 1.00
Other (radial and brachial) 29 (88 %) 9 (90 %) 20 (87 %)  
Diagnostic groups:
Septic shock 27 (82 %) 7 (70 %) 20 (87 %) 0.34
 – Endocarditis 1 (3 %) 0 (0 %) 1 (4 %)
 – Occult 7 (21 %) 2 (20 %) 5 (22 %)
 – Peritonitis 8 (24 %) 2 (20 %) 6 (26 %)
 – Pneumonia 11 (33 %) 3 (30 %) 8 (35 %)
SIRS 6 (18 %) 3 (30 %) 3 (13 %)
 – Ischaemic bowel 2 (6 %) 1 (10 %) 1 (4 %)
 – Occult 1 (3 %) 0 1 (4 %)
 – Pancreatico-duodenectomy 1 (3 %) 0 1 (4 %)
 – Pancreatitis 2 (6 %) 2 (20 %) 0
  1. Data are shown as mean (standard deviation), median (inter-quartile range), or number (percentage) with p value comparing responders to non-responders for certain characteristics. Sample sizes are as in column headings unless stated (some variables had small numbers of missing values)