Table 2 Patient characteristics and EMS assessment of patients with and without a time-sensitive condition included in the multivariable prediction model
Total | Not time-sensitive condition | Time-sensitive condition | P | |
|---|---|---|---|---|
n = 1536 | n = 1440 | n = 96 | ||
Age – years (25th, 75th percentile) (12,0)1 | ||||
Median | 73 (57,83) | 73 (57,83) | 78 (66,85) | 0.007 |
Gender – n (%) (13,0) | ||||
Female | 877 (57.6) | 830 (58.2) | 47 (49.0) | 0.088 |
Dispatcher priority – n (%) (1,0) | 0.038 | |||
Priority 1 | 523 (34.0) | 481 (33.4) | 42 (43.8) | |
Priority 2 | 945 (61.6) | 894 (62.1) | 51 (53.1) | |
Priority 3 | 67 (4.4) | 64 (4.5) | 3 (3.1) | |
Triage level according to RETTS-A – n (%) | 0.026 | |||
Red | 22 (1.4) | 22 (1.5) | 0 (0.0) | |
Orange | 415 (27.0) | 375 (26.0) | 40 (41.7) | |
Yellow | 878 (57.2) | 835 (58.0) | 43 (44.8) | |
Green | 221 (14.4) | 208 (14.5) | 13 (13.5) | |
Vital signs – median (10th 90th percentile) | ||||
Oxygen saturation, % (49,5)1 | 98 (95,100) | 98 (95,100) | 98 (95,99) | 0.063 |
Systolic blood pressure, mm/hg (51,4) | 150 (110,190) | 145 (110,187) | 160 (130,190) | < 0.001 |
Diastolic blood pressure, mm/hg (142,8) | 80 (70,100) | 80 (70,100) | 90 (70,104) | 0.026 |
Body temperature °C (83,7) | 36.7 (36.0,37.3) | 36.7 (36.0,37.3) | 36.6 (35.6,37.2) | 0.189 |
Blood glucose recorded – n (%) | 739 (48.1) | 685 (47.6) | 54 (56.3) | |
Elevated blood glucose > 9.4 mmol/l | 117 (15.8) | 104 (15.2) | 13 (24.1) | 0.118 |
Medical history – n (%)2 (19,0) | ||||
Stroke | 189 (12.5) | 169 (11.9) | 20 (20.8) | 0.016 |
Transient ischaemic attack | 95 (6.3) | 85 (6.0) | 10 (10.4) | 0.122 |
Hypertension | 618 (40.7) | 568 (40.0) | 50 (52.1) | 0.024 |
Diabetes | 213 (14.0) | 195 (13.7) | 18 (18.8) | 0.172 |
History of presenting complaint – n (%)3 (19,0) | ||||
Sudden onset4 | 1165 (76.8) | 1104 (77.7) | 61 (63.5) | 0.003 |
Nausea, vomiting | 801 (52.8) | 742 (52.2) | 59 (61.5) | 0.091 |
Sudden onset headache4 | 35 (2.3) | 24 (1.7) | 11 (11.5) | < 0.001 |
Head trauma | 86 (5.7) | 70 (4.9) | 16 (16.7) | < 0.001 |
Treatment with anticoagulants | 215 (14.2) | 191 (13.4) | 24 (25.0) | 0.004 |
Types of dizziness – n (%) (402,16) | < 0.001 | |||
Rotatory vertigo | 445 (39.8) | 428 (41.2) | 17 (21.2) | |
Balance disturbance | 85 (7.6) | 81 (7.8) | 4 (5.0) | |
Nautical dizziness | 111 (9.9) | 102 (9.8) | 9 (11.3) | |
Non-specific dizziness | 477 (42.7) | 427 (41.2) | 50 (62.5) | |