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Table 1 Factors associated with admission to an intensive care unit among patients with acute poisoning in Oslo during one year 2008–2009: Results of multivariate logistic regression analysis

From: A one-year observational study of all hospitalized acute poisonings in Oslo: complications, treatment and sequelae

    Crude Adjusted   
Total ICU OR 95% CI OR 95% CI
Main agents
Other agents1 277 119 (43) Ref    
Ethanol 194 85 (44) 1.0 0.7–1.5 1.0 0.6–1.5
Opioids 114 66 (58) 1.8* 1.2–2.8 1.2 0.7–2.1
GHB 85 50 (59) 1.9* 1.2–3.1 0.9 0.5–1.7
BZD 159 77 (48) 1.2 0.8–1.8 0.9 0.6–1.4
Paracetamol 117 47 (40) 0.9 0.6–1.4 0.8 0.5–1.3
Neuroleptics 60 39 (65) 2.5* 1.4–4.4 2.1* 1.2–3.9
Antidepressants 59 36 (61) 2.1* 1.2–3.7 1.5 0.8–2.8
Coagent
No 593 320 (54) Ref    
Yes 472 199 (42) 0.6* 0.5–0.8 0.8 0.6–1.0
GCS
Awake (15) 508 194 (38) Ref    
Drowsy (8–14) 356 166 (47) 1.4* 1.1–1.9 1.3 1.0–1.8
Comatose (<8) 201 159 (79) 6.1* 4.2–9.0 6.0** 3.8–9.5
Complications
No 744 322 (43) Ref    
Resp. depression 128 87 (68) 2.8* 1.9–4.1 1.4 0.9–2.2
Other complications 193 110 (57) 1.7* 1.3–2.4 1.4 1.0–1.9
Intention 2
Accidents 170 60 (35) Ref    
AOSA 399 191 (48) 1.7* 1.2–2.4 1.1 0.7–1.7
Suicide attempt 495 267 (54) 2.1** 1.5–3.1 1.8* 1.2–2.7
Total cases 1065 519 (49)     
  1. AOSA accidental overdose with substances of abuse, BZD benzodiazepines, GCS Glasgow Coma Scale, GHB gamma-hydroxybutyric acid.
  2. *Significant, p < 0.05; **significant, p < 0.001.
  3. 1Main agents was unknown in six cases.
  4. 2One patient with unknown intention and one with unknown GCS score were excluded from this analysis.
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