Younger children in the UK school year may be more likely to be diagnosed with depression by the age of 16 than older children in the year, according to a study published in the journal JAMA Pediatrics.

Using the electronic GP records for a sample of one million school-aged children in the UK, the study by the London School of Hygiene & Tropical Medicine, found children born in the last quartile (youngest) of the school 
year were estimated to have a 30% increased risk of depression compared to the first quartile (oldest).