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Table 3 Univariable negative binomial regression analyses of days of hospitalization after discharge from ICU

From: Ambulatory and stationary healthcare use in survivors of ARDS during the first year after discharge from ICU: findings from the DACAPO cohort

  IRR SE 95% CI p
Sex male 1.026 0.087 0.87–1.21 0.765
Age at admission to ICU (years) 1.002 0.003 0.99–1.01 0.527
Education scorea 1.049 0.034 0.98–1.12 0.143
Employment situation before onset of ARDS:     
 Full time Reference    
 Part time 0.855 0.137 0.62–1.17 0.327
 Irregular 0.832 0.326 0.38–1.79 0.639
 Not employed/retired 1.096 0.100 0.91–1.31 0.317
Health insurance     
 Statutory Reference    
 Private 1.089 0.138 0.85–1.40 0.498
 Other 0.575 0.219 0.27–1.21 0.147
Living with a partner 1.115 0.110 0.92–1.35 0.273
Nationality: German 1.371 0.310 0.88–2.14 0.164
Transferred from other ICU 1.205 0.100 1.02–1.42 0.024
Severity of ARDS:     
 Mild Reference    
 Moderate 0.874 0.123 0.66–1.15 0.339
 Severe 0.860 0.122 0.65–1.13 0.287
Cause of ARDS: extrapulmonary 1.259 0.153 0.99–1.60 0.059
SAPS-II at admission to ICU (without GCS) 1.007 0.004 1.00–1.01 0.047
SOFA score at admission to ICU (without GCS) 1.026 0.012 1.00–1.05 0.029
Length of ICU stay (10 days)b 1.112 0.024 1.06–1.16 < 0.001
Length of hospital stay (10 days)b 1.113 0.022 1.07–1.16 < 0.001
Mechanical ventilation at discharge 1.376 0.168 1.08–1.75 0.009
  1. IRR incidence rate ratio, SE standard error, 95% CI 95% confidence interval, SAPS-II Simplified Acute Physiology Score-II, SOFA sequential organ failure assessment, GCS Glasgow Coma Scale
  2. aDerived from educational and professional levels [36]
  3. bIncluding stay in transferring hospital