Table 2 Correlation between length of hospital stay and risk factors for prolonged hospitalization.

From: Risk factors for prolonged hospitalization in acute decompensated heart failure from the HEROES study

Length of hospital stay

Spearman’s rank correlation coefficient

p

Strong correlation

 Duration of intravenous diuretic administration (days)

0.603

 < 0.0001

Moderate correlation

 Porcalcitonin

0.335

0.0001

Weak correlation

 Positive correlations

  Length of stay in the Intensive Cardiac Care Unit

0.29

 < 0.0001

  NT proBNP

0.283

 < 0.0001

  Number of symptoms per patient

0.243

 < 0.0001

  Norepinephrine

0.226

 < 0.0001

  Fferritin

0.222

0.0011

  Intravenous diuretics

0.208

 < 0.0001

  Peripheral oedema

0.203

 < 0.0001

  Anemia

0.195

 < 0.0001

  Hepatojugular reflux

0.194

 < 0.0001

  Dobutamine

0.189

 < 0.0001

  Dopamine

0.184

 < 0.0001

  LVAD

0.176

 < 0.0001

  Invasive mechanical ventilation

0.174

 < 0.0001

  Weight gain

0.171

 < 0.0001

  Creatinine

0.174

0.0001

  Chronic kidney disease

0.172

 < 0.0001

  Epinephrine

0.16

0.0002

  Oral iron

0.15

0.0004

  Chest X-ray pleural effusion

0.143

0.0007

  IABP

0.142

0.0008

  Laterally displaced apical impulse

0.124

0.0034

  ECMO

0.123

0.0036

  Chest X-ray inflammation

0.118

0.0052

  Iron deficiency

0.109

0.0097

  Levosimendan

0.102

0.0161

  ECG ventricular rhythm

0.136

0.0020

  Dyspnea at rest

0.134

0.0015

  Pleural effusion

0.129

0.0022

 Negative correlations

  KCCQ12

− 0.247

 < 0.0001

  Physical limitation score (KCCQ12-PL)

− 0.201

 < 0.0001

  Quality of life score (KCCQ12-QL)

− 0.225

 < 0.0001

  Social limitation score (KCCQ12-SL)

− 0.203

 < 0.0001

  Symptom frequency score (KCCQ12-SF)

− 0.220

 < 0.0001

  Visual analogy scale

− 0.177

 < 0.0001

  Blood pressure systolic

− 0.172

 < 0.0001

  Hemoglobin

− 0.171

0.0001

  Echo Doppler IVC respiratory variation

− 0.173

 < 0.0001

  Hematocrit

− 0.153

0.0004

  Blood pressure diastolic

− 0.143

0.0007

  Sodium

− 0.111

0.0103

  1. ECG, Electrocardiography; ECMO, ExtraCorporeal Life Supprot; IABP, Intra-Aortic BalloonPump; KCCQ-12, Kansas City Cardiomyopathy Questionnaire-12; LVAD, Left Ventricle Assist Device; NT-proBNP, N-terminal pro b-type natriuretic peptide;
Back to article page