“…10,11 NIV is noninvasive, easy to introduce, prolongs survival, and improves quality of life (QOL). 12,13 This study investigated the frequency of NIV use and the rate of transition from NIV to TIV, a survival analysis with NIV use, and factors related to post-NIV survival in ALS patients at a Japanese institute. In addition, we examined the factors influencing the change from NIV to TIV.…”