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Table 1 Distribution of Danish Index criteria in numbers (n) and percentages (%), proportion of women in n and % and mean age with standard deviation (SD)

From: Which symptoms pose the highest risk in patients calling for an ambulance? A population-based cohort study from Denmark

Danish index criteria Number n(%) Women% Age mean (SD)
Chest pain 13,586(15.9) 43.4 62.0(18.2)
Unclear problem 10,171(11.9) 46.3 60.8(22.2)
Accidents 9549(11.2) 45.3 52.4(26.6)
Possible stroke 9345(10.9) 47.8 66.4(18.5)
Breathing difficulties 7111(8.3) 50.1 64.8(21.7)
Pain in the extremities – wounds – fractures – small injuries 5716(6.7) 51.9 57.7(25.5)
Abdominal pain - back pain 4930(5.8) 49.5 50.5(21.3)
Traffic accident 4181(4.9) 42.6 39.5(20.8)
Seizures 3677(4.3) 44.2 31.7(25.5)
Alcohol - poisoning – overdose 3236(3.8) 43.2 35.4(17.4)
Unconscious adult/ possible cardiac arrest 2813(3.3) 43.0 66.1(20.2)
Bleeding - not traumatic 1674(1.9) 40.9 63.8(20.9)
Diabetes 1506(1.8) 49.9 53.3(19.1)
Psychiatry – suicidal 1223(1.4) 50.5 39.5(17.1)
Allergic reaction 853(1.0) 54.9 45.6(22.4)
Sick child 820(1.0) 44.9 3.1(9.1)
Headache 787(0.9) 54.0 48.1(21.7)
Violence – abuse 544(0.6) 23.4 34.4(13.5)
Ear - nose – throat 496(0.6) 45.8 60.7(23.6)
Burns - electric injury 490(0.6) 38.6 37 (23)
Fever 485(0.6) 38.9 52.2(27.6)
Gynaecology – pregnancy 461(0.5) 99.8 30.2(9.4)
Urinary system 379(0.4) 16.6 65.8(21.5)
Foreign body in airways 229(0.3) 50.2 39.9(34.6)
Birth 126(0.2) 100.0 29.0(5.6)
Eye 112(0.1) 32.1 41.7(23.5)
Unconscious child (before puberty) 94(0.1) 52.1 6.6(15.3)
Animal bite - insect bite 86(0.1) 38.4 42.3(23.0)
Hypothermia – Hyperthermia 59(0.1) 42.4 61.8(26.7)
Drowning 51(0.1) 41.2 44.2(22.2)
Poisoning in children 37(0.0) 37.8 6.9(13.9)
Chemicals – gasses 36(0.0) 22.2 30.2(22.7)
Catastrophe - big accidents 16(0.0) 64.3 57.6(19.9)
Skin and rash 12(0.0) 41.7 58.8(17.3)
Diving accident 7(0.0) 28.6 38.3(23.1)
All 84,898(100.0) 46.3 55.3(24,5)