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Table 1 Alcohol breath test analysis results, characteristics of patients and emergency types

From: Alcohol use in the prehospital setting: a diagnostic challenge in patients treated by a physician staffed mobile intensive care unit

Patients by test result or performance n = 258 Positive result 35 (100 %) Negative result 47 (100 %) No breath test 176 (100 %)
Alcohol concentration in the breath test (‰)a    Reason for failed testing Impaired consciousness 56 (22 %)
 <1 1 (3 %) NA Cardiac arrest 38 (15 %)
 1–2 14 (40 %) NA Shortness of breath 26 (10 %)
 2–3 14 (40 %) NA Pediatric 16 (6 %)
 3–4 5 (14 %) NA Refused 5 (2 %)
 >4 1 (3 %) NA Unknown 35 (14 %)
Patient characteristics    
 Male 24 (69 %) 27 (57 %) 108 (61 %)
 Female 11 (31 %) 20 (43 %) 68 (39 %)
Age (years)    
 <15 NA NA 16 (9 %)
 15–20 2 (6 %) 5 (11 %) 6 (3 %)
 21–30 9 (27 %) 8 (17 %) 13 (7 %)
 31–40 7 (20 %) 4 (9 %) 11 (6 %)
 41–50 8 (24 %) 7 (15 %) 24 (14 %)
 51–60 6 (17 %) 6 (13 %) 25 (14 %)
 >60 3 (6 %) 17 (36 %) 81 (46 %)
Type of emergency    
 Blunt trauma 11 (31 %) 8 (17 %) 29 (16 %)
 Intoxication incl. substance abuse 11 (31 %) 5 (11 %) 15 (9 %)
 Penetrating trauma 5 (14 %) 3 (6 %) 2 (1 %)
 Neurological (excluding ischaemic stroke) 4 (11 %) 8 (17 %) 31 (18 %)
 Respiratory 2 (6 %) 1 (2 %) 19 (11 %)
 Other 2 (6 %) 22 (47 %) 80 (45 %)
  1. NA not applicapble
  2. a = 1 ‰ equals 1000 mg/l or 21.7 mmol/l of ethyl alcohol in blood