Table 2

Cox proportional hazard model of the Irish ALS population, 1996–2000

Co-variate*†Hazard ratio95% CIp value
*non-significant covariates excluded from model include: gender, follow up time, NIPPV use, and family history of ALS. Riluzole use was not included due to dependence on the type of clinic attended.
†likelihood ratio = 42.8, df = 4, p <0.0001.
General neurology clinic1.471.06–2.060.02
Bulbar onset disease1.411.12–1.950.02
Delay in diagnosis (per month)0.980.96–0.9960.02
Age at diagnosis (per year)1.021.01–1.040.002