Table 1

Patient characteristics

Alcohol-positiveAlcohol-negative
Patients
(n=2088)
Patients
(n=8111)
Age (years)
 <25538 (26)1698 (21)
 25–44968 (46)2716 (33)
 45–64453 (22)2244 (28)
 ≥65129 (6)1453 (18)
Male1707 (82)5191 (64)
Medical comorbidity*732 (35)2684 (33)
Protective device active†772 (37)4201 (52)
Abnormal vital signs‡482 (23)1465 (18)
Decreased Glasgow Coma Score§549 (26)1475 (18)
Position
 Driver1362 (65)5249 (65)
 Passenger294 (14)1047 (13)
 Pedestrian432 (21)1815 (22)
Night-time¶1395 (67)2599 (32)
Spring and summer1184 (57)4639 (57)
Weekend944 (45)2433 (30)
First decade**1214 (58)3642 (45)
Exact crash location1341 (64)4774 (59)
Injury Severity Score
 <15644 (31)2598 (32)
 15–24565 (27)2318 (29)
 25–34441 (21)1694 (21)
 ≥35438 (21)1501 (19)
  • Primary analysis based on alcohol-positive patients (alcohol-negative shown for context).

  • *Hypertension or diabetes most commonly.

  • †Denotes seatbelts or helmets.

  • ‡Denotes hypotension (blood pressure <100), tachycardia (heart rate >120) or tachypnea (respiratory rate >25).

  • §Denotes decreased consciousness (value <15).

  • ¶Night-time is 19:00 to 07:00 hours, daytime is 07:00 to 19:00 hours.

  • **First decade is 1995 to 2004, second decade is 2005 to 2014.