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Table 3 Predictors of inappropriateness of plain abdominal radiography according to the French National Authority for Health (HAS) and the American College of Radiology (ACR)

From: Overuse of plain abdominal radiography in emergency departments: a retrospective cohort study

Factors Unadjusted ORs (95%CI) Adjusted OR (95% CI)
Centre
 - HUG Ref Ref
 - HDL 3.71 (1.72–7.99) 3.88 (1.78–8.45)
Age
 - ≤ 65 years Ref Ref
 - > 65 years 2.79 (1.97–3.69) 2.41 (1.74–3.32)
Gender
 - Men Ref Ref
 - Women 2.10 (1.58–2.78) 1.95 (1.46–2.59)
Acuity level
 - 1 Ref Ref
 - 2 0.51 (0.18–1.46) 0.53 (0.18–1.53)
 - 3 0.43 (0.16–1.20) 0.50 (0.18–1.42)
 - 4 0.35 (0.09–13.2) 0.39 (0.10–1.54)
Time of the day
 - Daytime Ref Ref
 - Nighttime 1.28 (0.93–1.77) 1.35 (0.97–1.89)
Weekend
 - Week Ref Ref
 - Weekend 0.84 (0.62–1.13) 0.83 (0.61–1.13)
Ambulatory emergency
 - No Ref  
 - Yes 1.79 (1.19–2.69)  
  1. HUG Geneva University Hospitals, HDL Hôpital de La Tour, OR odds ratio, 95% CI 95% confidence interval, Ref reference