The prognosis of schizophrenia is varied at the individual level. In general it has great human and economics costs.[1] It results in a decreased life expectancy of 12–15 years primarily due to its association with obesity, little exercise, and smoking, while an increased rate of suicide plays a lesser role.[1] These differences in life expectancy increased between the 1970s and 1990s,[2] and between the 1990s and 2000s. This difference has not substantially changed in Finland for example – where there is a health system with open access to care.[3]
Schizophrenia is a major cause of disability. Approximately three quarters of people with schizophrenia have ongoing disability with relapses.[4] Still some people do recover completely and additional numbers function well in society.[5][6]
Most people with schizophrenia live independently with community support.[1] In people with a first episode of psychosis a good long-term outcome occurs in 42% of cases, an intermediate outcome in 35% of cases, and a poor outcome in 27% of cases.[7] Outcome for schizophrenia appear better in the developing than the developed world.[8] These conclusions however have been questioned.[9][10]
There is a higher than average suicide rate associated with schizophrenia. This has been cited at 10%, but a more recent analysis of studies and statistics places the estimate at 4.9%, most often occurring in the period following onset or first hospital admission.[11] Several times more attempt suicide.[12] There are a variety of reasons and risk factors.[13][14]
^Palmer BA, Pankratz VS, Bostwick JM (March 2005). "The lifetime risk of suicide in schizophrenia: a reexamination". Archives of General Psychiatry. 62 (3): 247–253. doi:10.1001/archpsyc.62.3.247. PMID15753237.
^Radomsky ED, Haas GL, Mann JJ, Sweeney JA (October 1999). "Suicidal behavior in patients with schizophrenia and other psychotic disorders". The American Journal of Psychiatry. 156 (10): 1590–1595. doi:10.1176/ajp.156.10.1590. PMID10518171.