Table 1.
Demographic and clinical characteristics of the studied population
| Mean | SD | |
| Age (years) | 62,3 | 14,6 |
| Frequency | % | |
| Sex/Female | 36 | 55.4 |
| Male | 29 | 44.6 |
| Education/Illiterate | 6 | 9.4 |
| Elementary | 36 | 56.3 |
| High school | 8 | 12.5 |
| Lyceum | 7 | 10.9 |
| Higher ed. | 5 | 7.8 |
| University | 2 | 3.1 |
| Duration of last episode/Acute (1–7 days) | 42 | 65.6 |
| Sub-acute (7 days-7 weeks) | 11 | 17.2 |
| Chronic (>7 weeks) | 11 | 17.2 |
| Previous episodes/None | 5 | 12.5 |
| 1–10 | 14 | 35.0 |
| >10 | 21 | 52.5 |
| Trauma/Yes | 4 | 6.3 |
| No | 60 | 93.8 |
| Neck surgery/Yes | 1 | 1.5 |
| No | 64 | 98.5 |
| Co-morbidity/Yes | 53 | 82.8 |
| No | 11 | 17.2 |