200 patients with ALS were collected. 1) sleep disorders were assessed by Pittsburgh sleep quality index (PSQI) and Epworth Sleepiness Scale (epworth) at baseline Sleeping Scale，ESS）； 2) Name, age, gender and onset site were collected to explore whether sleep disorders were associated with earlier onset age; 3) The patients' function (ALSFRS-R) at baseline and every 3 months within 2 years were collected, and the end-point time (death and invasive breathing) was recorded to evaluate whether sleep disturbance accelerated the decline of patients' function and shortened their short-term survival.
200 cases of ALS patients were collected to explore whether sleep disorders are related to earlier onset age, and whether sleep disorders accelerate the progress of ALS and shorten the survival time of ALS patients.