TY  - JOUR
PY  - 2015//
TI  - Sleep duration and school readiness of Chinese preschool children
JO  - Journal of pediatrics
A1  - Tso, Winnie
A1  - Rao, Nirmala
A1  - Jiang, Fan
A1  - Li, Albert Martin
A1  - Lee, So-Lun
A1  - Ho, Frederick Ka-Wing
A1  - Li, Sophia Ling
A1  - Ip, Patrick
SP  - 266
EP  - 271
VL  - 169
IS  - 
N2  - OBJECTIVES: To examine the average sleep duration in Chinese preschoolers and to investigate the association between sleep duration and school readiness. STUDY DESIGN: This is a cross-sectional study that included 553 Chinese children (mean age = 5.46 years) from 20 preschools in 2 districts of Hong Kong. Average daily sleep duration in the last week was reported by parents and school readiness as measured by the teacher-rated Chinese Early Development Instrument (CEDI). <br><br>RESULTS: Most Chinese preschoolers had 9-10 hours of sleep per day. Only 11% of preschoolers had the recommended 11-12 hours of sleep per day. This group was associated with more "very ready" CEDI domains. Sleep deprivation (≤7 hours per day) was associated with a lower CEDI total score, lower scores in the emotional maturity and language/cognitive domain, and prosocial behaviors subdomain but a greater score in the hyperactivity/inattention subdomain. Children with a lower family socioeconomic index, lower maternal education level, infrequent parent-child interactions, and who used electronic devices for more than 3 hours per day had shortened sleep durations. <br><br>CONCLUSIONS: Optimal sleep duration was associated with better school readiness in preschool children, whereas sleep deprivation was associated with lower school readiness, more hyperactivity and inattention, and less prosocial behavior.<p />  <p>Language: en</p>
LA  - en
SN  - 0022-3476
UR  - http://dx.doi.org/10.1016/j.jpeds.2015.10.064
ID  - ref1
ER  -