Skip to main content

Advertisement

Table 2 Baseline description of the study population

From: Ketamine for prehospital trauma analgesia in a low-resource rural trauma system: a retrospective comparative study of ketamine and opioid analgesia in a ten-year cohort in Iraq

  No analgesia n = 275 Pentazocine n = 888 Ketamine n = 713 Total Group comparisons
Age (years) 28 (21–39) 30 (22–38) 28 (20–36) 28 (21–37) p = 0.08. No significant differences between groups.
Time from injury to first in-field encounter (hours) 0.5 (0.5–1.0) 0.5 (0.5–0.5) 0.5 (0.5–1) 0.5 (0.5–1) p = 0.02.
Ketamine vs pentazocine group: p = 0.04.
Time from injury to hospital admission (hours) 2 (1.5–3.0) 2 (1.5–3.0) 3 (2.0–4.5) 2.5 (2–3.5) p = <0.0001
Ketamine vs no analgesia p = <0.0001
Ketamine vs pentazocine p = <0.0001
PSS at first in-field encounter 10 (7–11) 10 (4–9) 10 (9–11) 10 (9–11) p = <0.0001
Pentazocine vs no analgesia p = <0.0001
Ketamine vs no analgesia p = <0.0001
Injury severity score (ISS) 5 (4–13) 5 (4–9) 9 (4–9) 5 (4–9) p = <0.0001
Pentazocine vs no analgesia p = <0.0001
Ketamine vs no analgesia p = <0.0001
Males (proportion) 233/275 = 0.85 672/888 = 0.76 602/713 = 0.84 1507/1876 = 0.80 p = <0.0001
All groups significantly different.
Blunt injury (proportion) 196/275 = 0.71 730/888 = 0.82 192/713 = 0.27 1118/1876 = 0.60 p = <0.0001
All groups significantly different.
  1. Continuous values are expressed as median with 25–75 % interquartile range. Proportions are expressed as actual number followed by the calculated proportion