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Table 1 Population baseline characteristics

From: Repeated ambulance use is associated with chronic diseases - a population-based historic cohort study of patients’ symptoms and diagnoses

  All patients One-time users Two-time users Frequent users
Patients, n(%) 52 533 (100%) 44 099 (84%) 5 971 (11%) 2 463 (5%)
Male, n(%) 28 087 (53%) 23 378 (53%)1 3 300 (55%) 1 409 (57%)
Age, median (95% CI) 57 (56–58) 55 (54–56) 63 (62–64) 60 (59–61)
1–1-2 ambulance runs, n(%) 65 932 (100%) 44 099 (67%) 11 942 (18%) 9 891 (15%)
  1. Baseline characteristics of the included patients for each user group
  2. 1Significantly different from repeated users: crude OR (95%CI) 1.10 (1.04–1.16) for two-time users and 1.18 (1.09–1.29) for frequent users