Seasonal trends in suicide - a retrospective study

Suicide is the second commonest manner of unnatural death flanked by accident and homicide. Suicide patterns and rates differ in various populations and cultures. It is known that in most countries that have been studied, more than 90 percent of those who commit suicide have a mental disorder. This behavior is often triggered by external & internal factors. In present study, we try to find out the seasonal variation in incidence of suicide. There are a lot of meteorological factors like ambient temperature, relative humidity, atmospheric pressure, rainfall, cloudiness and daily sunshine hours which may be the influencing agents causing difference in rates of suicide in different seasons of the year.