From: Validity and risk factor analysis for helicopter emergency medical services in Japan: a pilot study
Analysis of all emergency calls | Analysis of calls after the first assesment by an EMT | ||||||||
---|---|---|---|---|---|---|---|---|---|
Emergency intervention | Emergency intervention | ||||||||
Variable keyword | OR | 95%CI(L) | 95%CI(H) | p-value | Variable keyword | OR 95% | 95%CI(L) 95% | 95%CI(H) | p-value |
Age | 1.105 | 1.002 | 1.028 | 0.024* | Age | 1.106 | 1.001 | 1.031 | 0.04* |
Male | 1.528 | 0.994 | 2.351 | 0.054 | Male | 1.674 | 1.029 | 2.721 | 0.038* |
Situation; under sports | 2.32 | 1.278 | 4.211 | 0.006* | situation; under sports | 3.387 | 1.535 | 7.472 | 0.003* |
Situation; under work | 1.356 | 0.56 | 3.281 | 0.5 | situation; under work | 1.14 | 0.427 | 3.309 | 0.794 |
Chest pain | 0.646 | 0.377 | 1.017 | 0.112 | chest pain | 0.732 | 0.406 | 1.321 | 0.3 |
Stroke symptoms | 1.131 | 0.63 | 2.029 | 0.68 | Stroke symptoms | 1.742 | 0.862 | 3.521 | 0.122 |
Dyspnea | 1.071 | 0.545 | 2.102 | 0.843 | Dyspnea | 1.144 | 0.533 | 2.459 | 0.73 |
Shock | 1.401 | 0.616 | 3.186 | 0.421 | Shock | 1.149 | 0.47 | 2.806 | 0.761 |
Gasping for air | 3.159 | 1.083 | 9.128 | 0.035* | Gasping for air | 8.015 | 1.009 | 63.7 | 0.049* |
DOC | 1.063 | 0.62 | 1.824 | 0.824 | DOC | 1.655 | 0.861 | 3.183 | 0.131 |
Convulsion | 0.436 | 0.103 | 1.847 | 0.26 | Convulsion | 0.634 | 0.114 | 3.542 | 0.604 |
Emergency call from a healthcare provider | 3.099 | 0.603 | 15.922 | 0.176 | Emergency call from a healthcare provider | 4.188 | 0.481 | 36.47 | 0.195 |
Emergency call from a family member | 0.562 | 0.128 | 2.468 | 0.446 | Emergency call from a family member | 0.664 | 0.106 | 4.154 | 0.662 |
Needs hospital admission | Needs hospital admission | ||||||||
Variable keyword | OR | 95%CI(L) | 95%CI(H) | p-value | Variable keyword | OR | 95%CI(L) | 95%CI(H) | p-value |
Age | 1.025 | 1.012 | 1.039 | <0.001* | Age | 1.036 | 1.108 | 1.055 | <0.001* |
Male | 1.502 | 0.961 | 2.347 | 0.074 | Male | 1.892 | 1.056 | 3.387 | 0.032* |
Situation; under sports | 1.642 | 0.864 | 3.121 | 0.13 | situation; under sports | 0.917 | 0.917 | 7.206 | 0.073 |
Situation; under work | 1.242 | 0.491 | 3.139 | 0.467 | situation; under work | 0.877 | 0.279 | 2.756 | 0.923 |
Chest pain | 0.661 | 0.372 | 1.173 | 0.157 | Chest pain | 0.855 | 0.416 | 1.754 | 0.668 |
Stroke symptoms | 1.107 | 0.582 | 2.105 | 0.757 | Stroke symptoms | 3.209 | 1.167 | 8.822 | 0.024* |
Dyspnea | 0.923 | 0.455 | 1.872 | 0.823 | Dyspnea | 0.994 | 0.405 | 2.439 | 0.99 |
Shock | 1.502 | 0.615 | 3.67 | 0.372 | Shock | 1.276 | 0.444 | 3.665 | 0.651 |
Gasping for air | 2.16 | 0.675 | 6.906 | 0.194 | Gasping for air | > 100 | < 0.001 | ||
DOC | 1.152 | 0.642 | 2.067 | 0.635 | DOC | 4.19 | 1.157 | 11.577 | 0.006 |
Convulsion | 0.954 | 0.251 | 3.626 | 0.945 | Convulsion | 6.92 | 0.538 | 89.048 | 0.138 |
Emergency call from a healthcare provider | 3.555 | 0.417 | 30.318 | 0.246 | Emergency call from a healthcare provider | > 100 | < 0.001 | 0.999 | |
Emergency call from a family member | 0.442 | 0.097 | 2.023 | 0.293 | Emergency call from a family member | 0.305 | 0.029 | 3.194 | 0.322 |
Validity of the suggested diagnoses | Validity of the suggested diagnoses | ||||||||
Variable keyword | OR | 95%CI(L) | 95%CI(H) | p-value | Variable keyword | OR | 95%CI(L) | 95%CI(H) | p-value |
Age | 1.004 | 0.992 | 1.016 | 506 | Age | 1 | 0.985 | 1.055 | 0.978 |
Male | 1.134 | 0.745 | 1.728 | 0.558 | Male | 0.985 | 0.602 | 1.16 | 0.95 |
Situation; under sports | 2.852 | 1.398 | 4.468 | 0.002* | Situation; under sports | 4.548 | 1.842 | 11.232 | 0.001* |
Situation; under work | 1.51 | 0.623 | 3.661 | 0.361 | Situation; under work | 1.347 | 0.49 | 3.7 | 0.564 |
Chest pain | 0.705 | 0.411 | 1.209 | 0.204 | Chest pain | 0.752 | 0.41 | 0.138 | 0.358 |
Stroke symptoms | 0.786 | 0.44 | 1.406 | 0.417 | Stroke symptoms | 0.971 | 0.485 | 1.943 | 0.934 |
Dyspnea | 1.099 | 0.555 | 2.178 | 0.787 | Dyspnea | 1.135 | 0.508 | 2.534 | 0 |
Shock | 1.331 | 0.58 | 3.055 | 0.5 | Shock | 1.005 | 0.406 | 2.489 | 0.757 |
Gasping for air | 1.607 | 0.627 | 4.119 | 0.323 | Gasping for air | 1.603 | 0.476 | 5.399 | 0.991 |
DOC | 0.759 | 0.444 | 1.299 | 0.315 | DOC | 1.022 | 5.399 | 1.692 | 0.941 |
Convulsion | 0.77 | 0.215 | 2.754 | 0.688 | Convulsion | 2.615 | 0.284 | 24.107 | 0.366 |
Emergency call from a healthcare provider | 2.74 | 0.539 | 13.921 | 0.224 | Emergency call from a healthcare provider | 3.308 | 0.39 | 28.095 | 0.273 |
Emergency call from a family member | 0.735 | 0.173 | 3.118 | 0.677 | Emergency call from a family member | 0.925 | 0.158 | 5.433 | 0.931 |