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Table 1 Patient characteristics by Do-Not-Resuscitate (DNR) status

From: The epidemiology of do-not-resuscitate orders in patients with trauma: a community level one trauma center observational experience

Characteristic, % (n) No DNR (n = 8530) Pre-existing DNR (n = 715) In-house DNR (n = 808) Pre-existing vs. in-house DNR No DNR vs. in-house DNR
Age ≥ 65 43.02 (3670) 95.24 (681) 90.47 (731) < .001 < .001
Female gender 46.07 (3930) 75.24 (538) 63.12 (510) < .001 < .001
CCI, median (IQR) 0 (0–1) 1 (0–2) 1 (0–1) 0.01 < .001
Surgical service admission 55.23 (4711) 15.94 (114) 35.64 (288) < .001 < .001
Transferred-in 34.02 (2902) 13.71 (98) 24.38 (197) < .001 < .001
Trauma activation 23.90 (2039) 2.80 (20) 13.74 (111) < .001 < .001
Fall cause of injury 55.28 (4715) 92.17 (659) 86.01 (695) < .001 < .001
GCS 3-8 4.48 (346) 2.40 (14) 12.76 (92) < .001 < .001
ISS ≥ 16 17.68 (1505) 11.90 (85) 26.49 (214) < .001 < .001
RR <12 or >20 breaths/min 11.06 (774) 9.81 (56) 13.40 (89) 0.05 0.07
Tachycardia1 3.26 (229) 1.58 (9) 5.37 (36) < .001 .004
Hypotension2 2.82 (238) 1.69 (12) 3.63 (29) 0.02 0.19
Head injury3 14.16 (1208) 12.59 (90) 24.26 (196) < .001 < .001
Neck injury3 6.26 (534) 3.92 (28) 8.04 (65) < .001 0.05
Chest injury3 11.52 (983) 4.62 (33) 9.28 (75) < .001 0.05
Abdomen/pelvic injury3 3.09 (264) 0.28 (2) 2.10 (17) < .001 0.12
Limb injury3 22.70 (1937) 40.14 (287) 32.80 (265) 0.003 < .001
  1. Significant p values (< 0.05) are bolded.
  2. DNR, do not resuscitate; CCI, Charlson comorbidity index; IQR, interquartile range; GCS, Glasgow coma score; ISS, injury severity score; RR, respiratory rate.
  3. 1Heart rate >120 beats/min.
  4. 2Systolic blood pressure < 90mmHg.
  5. 3Abbreviated injury scale score ≥ 3.