Table 3.
Clinical characteristics of subjects of OHCA - WACAR.
| Characteristic | Group | Frequency | Percent | 95% C.I (Wilson) | |
|---|---|---|---|---|---|
| 1. Risk factors (n = 589) | Yes | 414 | 70.29% | 66.48% | 73.84% |
| No | 175 | 29.71% | 26.16% | 33.52% | |
| 2. Number of Risk factors (n = 412)∗ | One risk factor | 201 | 48.79% | 43.99% | 53.60% |
| Two risk factors | 170 | 41.26% | 36.61% | 46.07% | |
| Three risk factors | 40 | 9.71% | 7.21% | 12.95% | |
| Four risk factors | 1 | 0.24% | 0.04% | 1.36% | |
| 3. Any past history of Heart Disease (n = 547) | Yes | 138 | 25.23% | 21.77% | 29.03% |
| No | 409 | 74.77% | 70.97% | 78.32% | |
| 4. If yes, Condition (n = 106)∗∗ | IHD and Heart Failure- Ischemic | 81 | 76.41% | 67.50% | 83.48% |
| Heart failure and Non-Ischemic Heart Failure | 18 | 16.98% | 11.02% | 25.25% | |
| Other | 7 | 6.61% | 3.24% | 13.01% | |
| ∗∗ | 32 | ||||
| 5. Any other comorbid illness (n = 375) | Yes | 174 | 46.40% | 41.41% | 51.46% |
| No | 199 | 53.06% | 48.01% | 58.06% | |
| Unknown | 2 | 0.54% | 0.15% | 1.92% | |
| 6. Comorbid illness (n = 173) | Cancer | 14 | 8.09% | 4.88% | 13.12% |
| Respiratory disease | 49 | 28.27% | 22.14% | 35.45% | |
| Renal disease | 35 | 20.17% | 14.92% | 26.83% | |
| Thyroid disease | 7 | 4.16% | 1.97% | 8.12% | |
| Stroke | 30 | 17.29% | 12.43% | 23.68% | |
| Liver disease | 9 | 5.26% | 2.76% | 9.59% | |
| Others | 29 | 16.76% | 11.93% | 23.04% | |
| 7. Preceding symptoms present (n = 764) | Yes | 460 | 60.21% | 56.7% | 63.6% |
| No | 304 | 39.79% | 36.38% | 43.30% | |
| 8. Duration of Symptoms (n = 352)∗∗∗ | <1hr | 282 | 80.11% | 75.63% | 83.95% |
| 1–24 h s | 51 | 14.49% | 11.19% | 18.55% | |
| >24 h s | 19 | 5.40% | 3.48% | 8.28% | |
| 9. Did victim Tell about the symptoms? (n = 252) ∗∗∗∗ | Yes | 218 | 86.51% | 81.74% | 90.18% |
| No | 34 | 13.49% | 9.82% | 18.26% | |
| 10. Any physician contacted? (n = 159) ∗∗∗∗∗ | Yes | 38 | 24.00% | 17.94% | 31.09% |
| No | 121 | 76.00% | 68.91% | 82.06% | |
Missing data: ∗ In 2(0.48%) patients definitive information on risk factors was not available. - ∗∗In 32(23.18%) there is no data on nature and type of heart disease. - ∗∗∗ In 108(23.47%) duration of onset of preceding symptoms in pts was not available. - ∗∗∗∗In 208(45.20%) There was no data on “did victim tell about the symptoms?” - ∗∗∗∗∗ In 301(65.43%) There was missing data on whether any physician was contacted.
OHCA,Out-of-Hospital Cardiac Arrest WACAR, Warangal Area Out-of-Hospital Cardiac Arrest Registry IHD, Ischaemic Heart Disease.