Objective-Family processes have a substantial impact on children's social and emotional wellbeing, but little is known about the effects of family stress on children's physical health. To begin to identify potential links between family stress and health in children, we examined associations between specific aspects of family psychosocial stress and the frequency of illnesses in children, measures of innate and adaptive immune function, and human herpesvirus 6 (HHV-6) reactivation.Study Design-Prospective study of 169 ambulatory school-age children and parents. Parents completed multiple assessments of stress at 7 sequential six-month visits and maintained weekly illness diaries for their children over three years using a thermometer to record fever. Children had blood obtained for HHV-6 and immune function studies at each visit including natural killer (NK) cell function and the percentage of CD4 and CD8 cells associated with immune control of cytomegalovirus (CMV).Results-Parental psychiatric symptoms were associated with a higher frequency of illnesses: for each 1 unit increase in symptom score children had an increased 1-year rate of total illnesses of 40% (rate ratio, 1.40; 95% CI, 1.06-1.85) and febrile illnesses of 77% (rate ratio, 1.77, 95% CI, 1.00-3.13). Parental psychiatric symptom scores were also associated with enhanced NK cell function (estimate, 0.15; 95% CI, 0.05-0.26) and increased percentages of CD8+CD28-CD57+ cells in the Corresponding author: Mary T. Caserta, M.D., Associate Professor of Pediatrics, Box 690, 601 Elmwood Ave., Rochester, NY 14642, Tel: (585) Fax: (585) 273-1104, e-mail: mary_caserta@urmc.rochester.edu. Publisher's Disclaimer: This is a PDF file of an unedited manuscript that has been accepted for publication. As a service to our customers we are providing this early version of the manuscript. The manuscript will undergo copyediting, typesetting, and review of the resulting proof before it is published in its final citable form. Please note that during the production process errors may be discovered which could affect the content, and all legal disclaimers that apply to the journal pertain. CI,). HHV-6 reactivation was not detected.
NIH Public AccessConclusions-There is an association between specific psychosocial stress exposure and rates of illness and immune function in normally developing children.Psychosocial stress adversely affects physical health. This connection has been demonstrated most convincingly in studies with diverse populations of adults, including an association between stress and an increased risk of mortality (Schulz and Beach 1999;Ickovics, Hamburger et al. 2001). Psychosocial stress also has reproducible effects on the human immune system. Chronic stress experiences of adults are associated with decreases in natural killer (NK) cell cytotoxicity, lower antibody titers to influenza vaccine, diminished delayed type hypersensitivity responses, and decreased lymphocyte proliferation (Segerstrom and Miller 2004;Glaser and Kiecolt-Glaser 2005). A...