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| Characteristics | N= 168 (%) |
| Age in years, mean ± SD | 51.5 ± 12.7 |
| Male | 73 (42.9) |
| Female | 95 (57.1) |
| Saudi nationality | 112 (66.7) |
| Non-Saudi nationality | 56 (33.3) |
| Non-smoker | 94 (55.9) |
| Smoker | 74 (44.1) |
| Health | 57 (33.9) |
| Hypertension | 46 (27.3) |
| Diabetes | 40 (23.8) |
| Heart Failure | 27 (16.1) |
| Coronary artery disease | 25 (14.9) |
