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Table 4 The comparison of patient characteristics and medical care between DNRCC-Arrest and non-DNR patients after matching a,b

From: Two distinct Do-Not-Resuscitate protocols leaving less to the imagination: an observational study using propensity score matching

  DNRCC-Arrest (n = 188) Non-DNR (n = 188) Pvalue SD
Patient characteristics     
 Age 66.83 ± 16.28 66.70 ± 14.92 0.93 0.01
 Sex (male) 96 (51.06%) 97 (51.60%) 0.92 -0.01
 APACHE II minus GCS 21.39 ± 7.27 21.24 ± 6.61 0.79 0.02
 GCS 10.57 ± 4.39 10.91 ± 4.30 0.45 -0.08
 Length of stay in the ICU by hour 120.04 ± 130.75 119.94 ± 151.84 0.99 0.001
 Length of stay in the hospital by hour 256.77 ± 210.98 254.32 ± 225.38 0.91 0.01
 Admission delayc 56 (29.79%) 59 (31.38%) 0.74 -0.04
 Intubated during ICU stay 73 (38.83%) 67 (35.64%) 0.52 0.07
 Prior end-of-life decision documented 7 (3.72%) 8 (4.26%) 0.79 -0.03
 Cared for by only one intensivistd 86 (45.74%) 89 (47.34%) 0.76 -0.03
 Elixhauser comorbidity measurese    0.13 ~ 1.00 -0.14 ~ 0.16
Insurance type    0.90  
 Private 74 (39.36%) 70 (37.23%)   0.04
 Medicare only 38 (20.21%) 41 (21.81%)   -0.04
 Medicaid only 34 (18.09%) 38 (20.21%)   -0.05
 Medicare and Medicaid 29 (15.43%) 24 (12.77%)   0.08
 None 13 (6.91%) 15 (7.98%)   -0.04
Source of admission to ICU    0.85  
 Emergency department 124 (65.96%) 118 (62.77%)   0.07
 Floorf 53 (28.19%) 54 (28.72%)   -0.01
 Other ICU 6 (3.19%) 10 (5.32%)   -0.11
 Outside hospital 2 (1.06%) 3 (1.60%)   -0.05
 Miscellaneous 3 (1.60%) 3 (1.60%)   0
Race/ethnicity    0.81  
 White American 141 (75%) 137 (72.87%)   0.07
 African American 37 (19.68%) 42 (22.34%)   -0.01
 Other 10 (5.32%) 9 (4.79%)   -0.11
ICU admission diagnosis    0.98  
 Medical-respiratory diseases 74 (39.36%) 77 (40.96%)   0.07
 Medical-gastrointestinal diseases 23 (12.23%) 21 (11.17%)   -0.01
 Medical-cardiovascular diseases 50 (26.60%) 53 (28.19%)   -0.11
 Medical-neurological diseases 35 (18.62%) 32 (17.02%)   -0.05
 Other 6 (3.19%) 5 (2.66%)   0
Medical care     
 Daily cost of ICU stay 5302 ± 3546 5915 ± 4358 0.14  
 Daily cost of hospital stay 3878 ± 3452 3605 ± 2505 0.38  
 Daily discretionary cost of ICU stay 1822 ± 2466 2018 ± 2312 0.43  
 Pharmacological/electrical cardioversion 42 (22.34%) 40 (21.28%) 0.80  
 Vasopressor 44 (23.40%) 44 (23.40%) 1.00  
 Intravenous antibiotics 138 (73.40%) 149 (79.26%) 0.18  
 Renal replacement therapy 16 (8.51%) 16 (8.51%) 1.00  
 Blood component transfusion 61 (32.45%) 68 (36.17%) 0.45  
 Central venous line 65 (34.57%) 74 (39.36%) 0.34  
 Pain control using morphine/fentanyl 68 (36.17%) 79 (42.02%) 0.25  
 Pastoral care 54 (28.72%) 61 (32.45%) 0.43  
 Hospice/palliative care consultation 15 (7.98%) 12 (6.38%) 0.55  
  1. APACHE, Acute Physiology and Chronic Health Evaluation; DNR Do-Not-Resuscitate; DNRCC, Do-Not-Resuscitate Comfort Care; DNRCC-Arrest Do-Not-Resuscitate Comfort Care-Arrest; GCS, Glasgow Coma Scale; ICU, medical intensive care unit.
  2. aThe statistical association between two categorical variables was examined using the χ2 test.
  3. bThe statistical association between a categorical variable and a continuous variable was examined using Student's t-test.
  4. c“Admission delay” means that the time between hospital admission and ICU admission was not zero.
  5. d“Cared for by only one intensivist” means that the patient was cared for by only one intensivist during their ICU stay.
  6. eSee Additional file 4: Table S4 for the comparison of Elixhauser comorbidity measures between DNRCC-Arrest and non-DNR after propensity score matching.
  7. f“Floor” means that the patient was admitted to other departments before admitting to ICU.