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Table 1 Characteristics of older ED patients with influenza in this study

From: Predicting outcomes in older ED patients with influenza in real time using a big data-driven and machine learning approach to the hospital information system

Variable Total patients (n = 5508)
Age (years) 76.61 ± 7.44
Age subgroup (%)
 Young elderly (65–74) 43.06
 Moderately elderly (75–84) 40.56
 Old elderly (≥85) 16.38
Sex, %
 Female 50.67
 Male 49.33
Triage vital signs
 GCS 14.41 ± 1.84
 SBP (mm Hg) 142.88 ± 32.77
 Heart rate (beats/min) 93.38 ± 24.24
 Respiratory rate (breaths/min) 19.16 ± 3.94
 Body temperature (°C) 37.53 ± 6.64
Past histories (%)
 Hypertension 56.05
 Diabetes 32.37
 COPD 12.87
 CAD 19.64
 CVA 18.77
 Malignancy 14.32
 CHF 11.27
 Dementia 10.62
 Bedridden 31.94
Laboratory data
 WBC (cells/mm3) 8670.00 ± 4220.00
 Bandemia (%) 4.10 ± 5.24
 Hemoglobin (mg/dL) 12.42 ± 1.95
 Platelet (103/mm3) 187.36 ± 72.39
 Creatinine (mg/dL) 1.29 ± 1.52
 hs-CRP (mg/dL) 42.06 ± 50.98
 Sodium (mEq/L) 134.68 ± 4.86
 Potassium (mmol/L) 3.76 ± 0.52
 GOT (U/L) 51.55 ± 172.64
 GPT (U/L) 31.79 ± 64.43
Outcomes (%)
 Hospitalization 47.33
 Pneumonia 37.71
 Sepsis or septic shock 5.57
 ICU admission 1.07
 In-hospital mortality 2.20
  1. Data are presented as mean ± SD or percent. ED Emergency department; GCS Glasgow coma scale; SBP Systolic blood pressure; COPD Chronic obstructive pulmonary disease; CAD Coronary artery disease; CVA Cerebrovascular accident; CHF Congestive heart failure; WBC White blood cell count; hs-CRP High sensitivity C-reactive protein; GOT Glutamic oxaloacetic transaminase; GPT Glutamate pyruvate transaminase; ICU Intensive care unit; SD Standard deviation