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|Title:||Infant night sleep trajectory from age 3–24 months: evidence from the Singapore GUSTO study||Authors:||Goh, Kok Yew Shaun
Tham, Kwang Hsia Elaine
Saw, Seang Mei
Yap, Kok Peng Fabian
Goh, Yam Thiam Daniel
Chong, Yap Seng
Broekman, Birit F.P.
Latent growth curves
|Issue Date:||1-May-2017||Publisher:||Elsevier||Citation:||Goh, Kok Yew Shaun, Tham, Kwang Hsia Elaine, Teoh, Oonhoe, Saw, Seang Mei, Yap, Kok Peng Fabian, Goh, Yam Thiam Daniel, Chong, Yap Seng, Qiu, Anqi, Broekman, Birit F.P. (2017-05-01). Infant night sleep trajectory from age 3–24 months: evidence from the Singapore GUSTO study. Sleep Medicine 33 : 82-84. ScholarBank@NUS Repository. https://doi.org/10.1016/j.sleep.2017.01.013||Abstract:||Objective Longitudinal studies on night sleep trajectories throughout infancy are sparse. Moreover, most studies have examined samples in Caucasian individuals, although cultural differences in sleep habits have been described. To expand on the current literature, we aimed to determine night sleep trajectories in an Asian population from age 3–24 months. Methods Night sleep duration from a subset of 893 infants within the Growing Up in Singapore Towards healthy Outcomes (GUSTO) birth cohort study was determined using the caregiver-reported Brief Infant Sleep Questionnaire. Latent growth curves were used to analyze sleep trajectories at 3, 6, 9, 12, 18, and 24 months. Results The overall trajectory was modeled with a piecewise model with two freely estimated curves. In the first phase (age 3–12 months), infants displayed an average curvilinear increase in night sleep trajectories of 0.12 h per month. In the second phase (age 12–24 months), infants continued to display a curvilinear increase, but at a slower average rate of 0.02 h per month. Conclusions The sleep trajectory of Singaporean infants appeared similar to other predominantly Caucasian cohorts for 3–12 months but not for 12–24 months, in which infants from predominantly Caucasian cohorts mostly displayed a decreasing or a stable-plateaued trajectory. This is in concordance with existing studies that suggest that the underlying influences of night sleep shift from predominantly biological influences to increasing environmental influences with age. © 2017 Elsevier B.V.||Source Title:||Sleep Medicine||URI:||http://scholarbank.nus.edu.sg/handle/10635/136889||ISSN:||13899457||DOI:||10.1016/j.sleep.2017.01.013|
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