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Table 1 Comparisons of clinical variables between cases and controls

From: Comparison of outcomes from sepsis between patients with and without pre-existing left ventricular dysfunction: a case-control analysis

Variable Cases (n) Controls (n) P
Age (years) 68 +/- 16 (197) 67 +/- 16 (197) 0.935b
Male gender 129 (197) 129 (197) 1.000a
LVEF (%) 35 +/- 12 (197) 60 +/- 5 (197) <0.001 b
APACHE II 20 +/- 7 (194) 19 +/- 8 (191) 0.603b
Initial CVP (cm H2O) 9 +/- 8 (128) 8 +/- 7 (120) 0.334b
ScVO2 (%) 67 +/- 17 (166) 71 +/- 16 (166) 0.009 b
Lung Infection 64 (197) 54 (197) 0.322a
Sepsis bundle compliant 61 (197) 69 (197) 0.453a
MAP <65 mm Hg 116 (197) 114 (197) 0.919a
Initial temperature (°C) 36.9 +/- 1.6 (196) 37.0 +/- 1.5 (195) 0.714b
Temperature at 24 hours (°C) 37.2 +/- 2.0 (197) 37.3 +/- 2.0 (197) 0.471b
Initial heart rate (min−1) 104 +/- 27 (197) 108 +/- 24 (197) 0.074b
Heart rate at 24 hours (min−1) 115 +/- 32 (197) 117 +/- 29 (197) 0.360b
Initial respiratory rate (min−1) 24 +/- 9 (197) 24 +/- 9 (197) 0.558b
Respiratory rate at 24 hours (min−1) 29 +/- 9 (197) 30 +/- 9 (197) 0.435b
Initial MAP (mm Hg) 74 +/- 22 (197) 76 +/- 23 (197) 0.502b
MAP at 24 hours (mm Hg) 58 +/- 19 (197) 60 +/- 21 (197) 0.226b
Initial pH 7.35 +/- 0.12 (176) 7.35 +/- 0.13 (175) 0.994b
pH at 24 hours 7.31 +/- 0.13 (112) 7.29 +/- 0.15 (107) 0.302b
Initial PO2/FiO2 259 +/- 130 (161) 266 +/- 139 (166) 0.630b
PO2/FiO2 at 24 hours 265 +/- 113 (108) 268 +/- 126 (115) 0.846b
Initial sodium (mg/dL) 139 +/- 7 (196) 139 +/- 12 (197) 0.730b
Initial creatinine (mg/dL) 3.04 +/- 2.72 (195) 2.73 +/- 3.28 (197) 0.115c
Initial hematocrit (%) 31.6 +/- 6.6 (197) 33.1 +/- 8.1 (197) 0.046 b
Initial WBC (x103 ul) 15.1 +/- 9.7 (196) 16.4 +/- 15.6 (197) 0.294b
Initial platelet count (x103 ul) 234 +/- 138 (195) 231 +/- 153 (196) 0.844b
Initial lactate (mmol/L) 3.4 +/- 3.0 (196) 4.1 +/- 3.5 (195) 0.019 c
Initial glucose (mg/dL) 136 +/- 98 (197) 136 +/- 52 (197) 0.960b
Initial 24-hour fluid volume (ml) 4,005 +/- 2,763 (190) 4,378 +/- 3,040 (192) 0.321c
Receipt of vasoactive agents 88 (197) 79 (197) 0.415a
  1. Significance, P <0.05; aChi-square test; bStudent’s t-test; cMann-Whitney U test. APACHE II, Acute Physiology and Chronic Health Evaluation II; CVP, central venous pressure; LVEF, left ventricular ejection fraction; MAP, mean arterial pressure; PO2/FiO2, partial pressure of oxygen to the fraction of inspired oxygen; ScVO2, mixed venous oxygen saturation; WBC, white blood count.