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01 August 2021: Clinical Research

Factors Associated with Emergency Department Length of Stay in Critically Ill Patients: A Single-Center Retrospective Study

Zhiwei Yang AE , Kun Song B , Hang Lin F , Changluo Li D* , Ning Ding CD*

DOI: 10.12659/MSM.931286

Med Sci Monit 2021; 27:e931286

Table 3 Univariate and multivariate analyses for factors associated with LOS.

VariableUnadjusted resultsMultivariate results
OR (95% CI)P valueOR (95% CI)P value
1.109 (1.044–1.178)0.0010.991 (0.924–1.063)0.802
0.002*
RefRef
 18–452.164 (1.453–3.221)1.678 (1.066–2.641)0.025*
 46–592.545 (1.711–3.786)1.798 (1.143–2.829)0.011*
 60–693.159 (2.123–4.700)1.955 (1.241–3.079)0.004*
 70–793.593 (2.414–5.348)1.880 (1.192–2.964)0.007*
 80–893.562 (2.390–5.309)1.963 (1.243–3.099)0.004*
 ≥904.463 (2.912–6.839)2.320 (1.426–3.776)0.001*
 Winter (Dec–Feb)1.551 (1.430–1.6821.602 (1.459–1.759)
 Spring (Mar–May)1.452 (1.312–1.548)1.412 (1.283–1.553)
 Summer (Jun–Aug)1.035 (0.951–1.127)0.4210.998 (0.906–1.099)0.964
 Fall (Sep–Nov)RefRef
 Midnight–8: 00 AM1.461 (1.347–1.585)1.642 (1.493–1.806)
 8: 00 AM–4: 00 PM0.972 (0.911–1.036)0.3810.850 (0.789–0.915)
 4: 00 PM–MidnightRefRef
 Respiratory and cardiac arrestRefRef
 Nervous system diseases0.753 (0.677–0.838)0.612 (0.544–0.689)
 Respiratory diseases3.484 (3.142–3.864)2.647 (2.356–2.975)
 Digestive system diseases2.071 (1.841–2.328)1.746 (1.531–1.991)
 Trauma0.557 (0.480–0.646)0.541 (0.456–0.640)
 Cardiovascular diseases0.214 (0.129–0.353)0.188 (0.104–0.341)
 Endocrine system diseases2.462 (1.928–3.145)2.325 (1.770–3.053)
 Blood system diseases4.480 (3.222–6.230)4.080 (2.825–5.894)
 Acute poisoning1.011 (0.833–1.227)0.9121.358 (1.082–1.704)0.008*
 Tumor diseases5.777 (4.305–7.753)4.840 (3.505–6.684)
 Tuberculosis7.040 (5.860–8.459)4.986 (4.102–6.061)
 Other1.692 (1.458–1.964)1.786 (1.508–2.115)
 Tracheal intubation0.436 (0.374–0.508)0.564 (0.329–0.967)0.038*
 Mechanical ventilation
  Invasive ventilator0.467 (0.398–0.548)1.015 (0.566–1.820)0.960
  Noninvasive ventilator1.853 (1.215–2.826)0.0040.818 (0.523–1.279)0.379
 NoneRefRef
 CPR0.350 (0.275–0.446)0.874 (0.578–1.323)0.525
 Surgery0.054 (0.031–0.097)0.097 (0.054–0.174)
 Interventional therapy
  PCI0.044 (0.027–0.072)0.046 (0.028–0.077)
  Other2.111 (1.598–2.788)1.912 (1.359–2.690)
 NoneRefRef
 Thrombolysis0.111 (0.068–0.181)0.170 (0.103–0.281)
LOS – length of stay; OR – odds ratio; CI – confidential interval; CPR – cardiopulmonary resuscitation; PCI – percutaneous coronary intervention (*

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Medical Science Monitor eISSN: 1643-3750
Medical Science Monitor eISSN: 1643-3750