Under-4s top stress.
KIDS aged under four stress their parents out more than any other age group, a study found.
Some 46 per cent of parents with under-fours say they caused them stress over the past year.
This compared with 39 per cent with children aged five to 11 and 36% per cent with 12 to 15s.
Consumer analyst Mintel said just 28% of parents with kids of 16 to 18 report child-related stress.
Mintel's Hera Crossan said: "Raising children in today's economic climate is a battle for many parents, but particularly those with younger offspring."
Meanwhile, 91% of 16 to 24-year-olds experienced stress in the past year.