Table 1.

Univariate and multivariate hazard proportional regression analyses of variables related to ALS survival.

Variables	HR	95% CI	p-Value
Univariate Analysis
Age	1.047	0.997–1.099	NS
Gender	0.743	0.33–1.67	NS
∆ Body fat percentage/duration (months)	0.418	0.188–0.929	0.0323 *
Availability of oral food intake	0.228	0.053–0.975	0.0461 *
∆ Phase angle/duration (months)	0.429	0.194–0.952	0.0374 *
∆ ECW/TBW/duration (months)	2.871	1.261–6.535	0.012 *
∆ Skeletal muscle index/duration (months)	1.31	0.601–2.855	NS
∆ Muscle mass/duration (months)	1.763	0.808–3.846	NS
∆ Fat-free mass/duration (months)	1.448	0.667–3.146	NS
∆ Skeletal muscle mass/duration (months)	2.042	0.925–4.509	NS
∆ Basal metabolism rate/duration (months)	1.679	0.771–3.659	NS
∆ Weight/duration (months)	1.635	0.686–3.896	NS
∆ BMI/duration (months)	1.635	0.686–3.896	NS
Presence of tracheostomy	1.133	0.464–2.764	NS
Multivariate Analysis
∆ Body fat percentage/duration (months)	0.374	0.158–0.882	0.0247 *
Availability of oral food intake	0.167	0.037–0.755	0.02 *
∆ Phase angle/duration (months)	1.215	0.177–8.344	NS
∆ ECW/TBW/duration (months)	3.03	0.429–21.384	NS

HR—hazard ratio; CI—confidence interval. HRs were adjusted for the listed variables. * p < 0.05.