Table 1 Baseline characteristics, prevalence of chest pain, incidence of AMI and other diagnoses among all GP- and 1–1-2 triaged patients
From: Chest pain in the ambulance; prevalence, causes and outcome - a retrospective cohort study
All transports | Chest pain | p-value | ||
|---|---|---|---|---|
No | Yes | |||
Acute ambulance transports, n(%) | 61,088 (100.0%) | 51,055 (83.6%) | 10,033 (16.4%) | |
Registrations, N per 1000 inhabitants per year | 47.5 | 39.7 | 7.8 | |
Way of ambulance request, n(%) | ||||
GP | 32,036 (52.4%) | 25,743 (50.4%) | 6293 (62.7%) | < 0.001 |
112 | 29,052 (47.6%) | 25,312 (49.6%) | 3740 (37.3%) | |
Pre-hospital triage, n(%) | ||||
A | 28,230 (46.3%) | 19,420 (38.1%) | 8810 (87.8%) | < 0.001 |
B | 24,754 (40.6%) | 23,813 (46.7%) | 941 (9.4%) | |
C | 8046 (13.2%) | 7766 (15.2%) | 280 (2.8%) | |
Male gender, n(%) | 31,563 (51.7%) | 26,005 (50.9%) | 5558 (55.4%) | < 0.001 |
Age, median (IQR) | 65 (45, 78) | 65 (42, 78) | 66 (52, 77) | < 0.001 |
Diabetes, n(%) | 7080 (11.6%) | 5754 (11.3%) | 1326 (13.2%) | < 0.001 |
Prior AMI, n(%) | 4273 (7.0%) | 2718 (5.3%) | 1555 (15.5%) | < 0.001 |
Charlson comorbidity index, n(%) | ||||
0 | 14,736 (24.2%) | 13,158 (25.8%) | 1578 (15.7%) | < 0.001 |
1–2 | 12,285 (20.2%) | 9586 (18.8%) | 2699 (26.9%) | |
3–4 | 14,698 (24.1%) | 11,994 (23.6%) | 2704 (27.0%) | |
> =5 | 19,224 (31.5%) | 16,173 (31.8%) | 3051 (30.4%) | |
Length of stay, hours, median(IQR) | 5.8 (2.0, 37.3) | 4.8 (1.9, 36.0) | 11.2 (3.6, 42.7) | < 0.001 |
Place of first admittance (Non-cardiac/CCU/Invasive centre)a | 52,981/5267/2840 | 47,613/2357/1085 | 5368/2910/1755 | |
Final diagnosis | ||||
Acute cardiac conditions, n(%): | 2333 (3.8%) | 1015 (2.0%) | 1318 (13.1%) | < 0.001 |
Acute myocardial infarction: | 1482 (2.4%) | 428 (0.8%) | 1054 (10.5%) | |
STEMI | 453 (0.7%) | 113 (0.2%) | 340 (3.4%) | |
NSTEMI | 1029 (1.7%) | 315 (0.6%) | 714 (7.1%) | |
Other acute cardiovascular conditions: | 851 (1.4%) | 587 (1.1%) | 264 (2.6%) | |
UAP | 181 (0.3%) | 41 (0.1%) | 140 (1.4%) | |
Cardiac arrest | 204 (0.3%) | 193 (0.4%) | 11 (0.1%) | |
Ventricular tachycardia | 53 (0.1%) | 38 (0.1%) | 15 (0.1%) | |
Aortic dissection | 114 (0.2%) | 93 (0.2%) | 21 (0.2%) | |
Pulmonary Embolism | 299 (0.5%) | 222 (0.4%) | 77 (0.8%) | |
Other cardiovascular and non-cardiovascular conditions, n(%): | 44,125 (72.2%) | 40,478 (79.3%) | 3647 (36.4%) | < 0.001 |
Certain infectious and parasitic diseases | 1928 (3.2%) | 1822 (3.6%) | 106 (1.1%) | |
Neoplasms | 580 (0.9%) | 559 (1.1%) | 21 (0.2%) | |
Endocrine, nutritional and metabolic diseases | 1373 (2.2%) | 1306 (2.6%) | 67 (0.7%) | |
Mental and behavioral disorders | 1959 (3.2%) | 1851 (3.6%) | 108 (1.1%) | |
Diseases of the nervous system | 2004 (3.3%) | 1962 (3.8%) | 42 (0.4%) | |
Diseases of the circulatory system (other than acute) | 6332 (10.4%) | 4598 (9.0%) | 1734 (17.3%) | |
Diseases of the respiratory system | 6453 (10.6%) | 5854 (11.5%) | 599 (6.0%) | |
Diseases of the digestive system | 3405 (5.6%) | 3097 (6.1%) | 308 (3.1%) | |
Diseases of the musculoskeletal system and connective tissue | 1239 (2.0%) | 1126 (2.2%) | 113 (1.1%) | |
Diseases of the genitourinary system | 1853 (3.0%) | 1760 (3.4%) | 93 (0.9%) | |
Injury, poisoning and certain other consequences of external causes | 12,739 (20.9%) | 12,587 (24.7%) | 152 (1.5%) | |
Other diagnosesb | 4260 (7.0%) | 3956 (7.7%) | 304 (3.0%) | |
No final diagnosis, n(%): | 14,630 (23.9%) | 9562 (18.7%) | 5068 (50.5%) | < 0.001 |
Symptoms, signs and abnormal clinical and laboratory findings | 8571 (14.0%) | 6177 (12.1%) | 2394 (23.9%) | |
Medical observation and evaluation for suspected diseases and conditions or other reasons | 6059 (9.9%) | 3385 (6.6%) | 2674 (26.7%) | |