期刊
DEVELOPMENTAL PSYCHOBIOLOGY
卷 63, 期 5, 页码 1635-1643出版社
WILEY
DOI: 10.1002/dev.22077
关键词
child; hair cortisol; low‐ income; sleep; stress
资金
- National Institute of Nursing Research [F31NR017103, T32NR014225]
- Eunice Kennedy Shriver National Institute of Child Health and Human Development [P2CHD058484]
- Ohio Nurses Foundation
- Ohio State University College of Nursing
- Jonas Foundation
- Sigma Theta Tau International
- Ohio State University Graduate School
- Crane Center for Early Childhood Research and Policy
The study found that toddler sleeping difficulties are not directly influenced by maternal stress, but higher levels of stress in toddlers predict greater difficulties in sleep later on.
Optimal sleeping behaviors are critical for overall development, yet some evidence suggests stress and living in a low-income environment are associated with disruptions of sleeping behaviors early in life. In this study, we investigated the association of toddler sleeping behaviors, particularly difficulties initiating and/or maintaining sleep (DIMS), and maternal and toddler prolonged stress using hair cortisol from dyads living in low-income homes. Hair cortisol was mainly sampled at the posterior vertex of mothers and toddlers (age 20-24 months) and analyzed with immunoassay (n = 94). Toddler DIMS were assessed at 15-19 and 27-31 months of age through mother-rated reports using the Tayside Children's Sleep Questionnaire. We found no associations between toddler DIMS and maternal stress. Additionally, early DIMS did not predict toddler stress. However, while controlling for early DIMS and sociodemographic factors, we found that higher toddler stress predicted greater DIMS in later toddlerhood (b = -2.28, SE = 0.98, p = .02, d(s) = 0.64). These study findings highlight the importance of understanding the role of early life stress on later sleep patterns.
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