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  Relative Age and Suicide
       
 
Relative Age Classification of Youth
Suicides for Each Grade
One Entry Cutoff Date
Young Old
Mar 1 172 152
Jan 1 117 92
Sept 1 9 5
Nov 1 7 2
Oct 1 6 1
Dec 1 1 0
Total 312 252
  A theoretical explanation for relative age includes the belief that its effects are due, in the end, to negative self-appraisal and diminished self-confidence. These are related to depression and hopelessness, respectively, thought by many to be the essential components of completed suicide. Relative age effects among young children, then, might well be expected to be associated with suicide later in life.

The accompanying Table shows the distribution of youth suicides in Alberta from 1979-92 according to age at entering grade one (data are presented separately for each grade one entry cutoff date used in the various school districts in the Province). The group of children who were younger entering grade one showed the higher rates in each case.

These data indicate that bestowing advantage/disadvantage in a competitive task, albeit inadvertently, can affect emotional development and suicidal behaviour.
  Source: Thompson AH, Barnsley RH, Dyck RJ (1999). A new factor in youth suicide: The relative age effect. Canadian Journal of Psychiatry 44(1), 82-85. Click here for the full text.  
     
 
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