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Table 1 Characteristics of the intoxication patients, the ICU population and the general population control patients

From: The healthcare costs of intoxicated patients who survive ICU admission are higher than non-intoxicated ICU patients: a retrospective study combining healthcare insurance data and data from a Dutch national quality registry

Variable Intoxication patients (n = 2591) Other ICU patients (n = 2577) Control population (n = 2591)
Male (n %) 1185 (45.7%) 1179 (45.8%) 1185 (45.7%)
Age (median IQR) 45 (32; 55) 45 (32; 55) 45 (32; 55)
SES (median IQR) 0.1 (−0.8; 0.7) 0.1 (−0.8; 0.7) 0.1 (− 0.8; 0.7)
Died during 2013 (n %) 141 488 17
Died during 2014 (n %) 107 96 11
Characteristics of the first (intoxication related) ICU admission
Admission type    
 • Medical 2563 2563  
 • Planned surgery 6 6  
 • Emergency surgery 8 8  
 • Missing 14  
APACHE IV scorea 38 (24; 62) 49 (31; 76)  
Length of ICU stay (days, median, IQR) 0.8 (0.5; 1.3) 1.7 (0.8; 3.6)  
Length of hospital stay (days, median, IQR) 1 (1; 3) 8 (4; 15)  
Mechanical ventilation 537 1016  
Subgroups of intoxications
 • Alcohol 277  
 • Analgesics 110  
 • Antidepressant 282  
 • Street drug 357  
 • Sedatives 836  
 • Poisoning 11  
 • Other 364  
 • Combination 354  
Acute diagnosis
 • Cardiopulmonary resuscitation 26 218
 • Burns 2 13
 • Cardiac dysrhythmia 97 238
 • GI bleeding 6 79
 • CVA 14 118
 • Intracranial mass effect 8 113
 • Sepsis 8 316
 • OHCA 22 168
 • SAH 0 60
 • Trauma 54 287
  1. aonly calculated for patients which met the APACHE IV inclusion criteria, which was n = 2456 for intoxication patients group and n = 2392 for ICU patients group