The Global Burden of Disease (GBD) is the most comprehensive global
epidemiological study, and the analyses of the 2015 data have recently
been published (thelancet.com/gbd). This is a rich data-set
including observation on the general increase in global life expectancy,
with the gains due to significant improvement in HIV outcomes balanced
against the significant war-related decreases in male life expectancy in
Syria. Interestingly, the age-standardised mortality rate for mental and
substance use disorders dropped by over 12% between 2005 and 2015, though
with considerable variations between conditions and countries, and the
authors further note the difficulty in accurately attributing and coding
excess deaths – for example, the years of life known to be indirectly lost
to schizophrenia. Total deaths due to self-harm and interpersonal violence
did not change much during this period.