Niven /niv-en/ [2 sylls.] as a boys' name. Niven's root is Latin, and the name Niven means holy, sacred; little bone; servant of the saint's disciple. Niven is a variant transcription of Nevin (Latin).
The average life expectancy for someone with MS is 35 years after the symptoms begin. This represents a life expectancy of 95 percent of someone who does not have multiple sclerosis. Most people with the disease can function effectively; however, a rare form of acute MS can be fatal within weeks.
1 2002 A patient with Multiple Sclerosis can expect to live to average population life-expectancy minus seven years (mean life expectancy - 7 years).ife Expectancy with Multiple Sclerosis. Life expectancy for people who have multiple sclerosis is growing longer with every passing year, particularly with the advancement of medical science, new drugs and better care and understanding of the disease.