how long is life expectancy with parkinson
Note also that the average life expectancy after being diagnosed with Parkinson's is about 9 years -- hence, those who participated were already at this point at the beginning of the study.
Then bone and muscle degeneration because parkinson's is a movement disorder and lack of training is a problem. PD itself e.g. would not cause death. Patients can live quite ...ehm well with it for 20 years (seen it myself...). Its just all what comes along with it which tends to kill the patient, I think.