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Published on: July 10, 2017
Parents' psychological stress over time may affect children's cortisol at age 8
Felix-Sebastian Koch1, Johnny Ludvigsson, Anneli Sepa
1Division of Pediatrics, Department of Clinical and Experimental Medicine, Linköping University, Linköping, Sweden. felix.koch@liu.se
Objective:
To examine possible relations between parents' psychological stress and children's saliva cortisol levels in connection with a mild stressor (drawing a blood sample).
Method:
Parenting stress and serious life events at birth, age 1, age 2, age 5, and age 8 were assessed. Eighty-two paired saliva samples collected from their 8-year-old children just before and 30 min after blood was drawn were analyzed.
Results:
Instead of increasing, cortisol levels significantly decreased. Repeated measures GLM indicated a significant relation between higher parenting stress at child age 1 and at age 8, and elevated cortisol levels. A t-test indicated that cortisol levels after the blood draw were significantly higher in children whose parents reported a serious life event at age 8.
Conclusion:
Parenting stress could be a relevant factor for children's adjustment of the HPA axis with long-term effects and leave children more vulnerable to experiences of stress.
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