Results of univariate Cox regression analysis
| Hazard ratio | 95% CI | p Value | |
|---|---|---|---|
| Variables | |||
| Age at blepharospasm onset | 1.06 | 1.02 to 1.1 | 0.004 |
| Sex (female) | 3.8 | 1.3 to 11.3 | 0.018 |
| Ocular diseases | 1.12 | 0.6 to 1.9 | 0.7 |
| Hypertension | 1.3 | 0.8 to 2 | 0.4 |
| Diabetes | 0.96 | 0.4 to 2.5 | 1 |
| Head or face trauma with loss of consciousness | 4.8 | 1.9 to 11.5 | <0.001 |
| Neck or trunk trauma | 0.43 | 0.1 to 2.3 | 0.25 |
| Edentulousness | 2.69 | 1.2 to 5.9 | 0.015 |
| Cigarette smoking (current smokers) | 1.11 | 0.5 to 2.3 | 0.78 |
| Family history of dystonia | 0.81 | 0.3 to 2.3 | 0.69 |
| Family history of tremor | 0.28 | 0.1 to 1.2 | 0.08 |