关键词: 婴儿, 睡眠, 奶睡, 夜醒, 队列研究

Abstract: Objective To examine infants sleep patterns in Shunyi District, in order to provide reference for giving early sleep guidance to parents. Methods The prospective cohort study enrolled 220 healthy infants from China Longitudinal Environmental, Genetic and Economic Cohort (CHALLENGE) in Shunyi District of Beijing, and the infants were followed up at the age of 42 days, 3 and 6 months old.The demographic data of infants were collected, and the Brief Infant Sleep Questionnaire (BISQ) was used to evaluate the sleep patterns and sleep disorders of infants. Results 0- to 6-month-old infants changed significantly in sleep duration time of day and night.The daytime sleep duration decreased significantly from (6.0±2.3)h on 42 days old to (3.8±1.5)h on 6 months old.Nocturnal sleep duration increased significantly from (6.9±2.2)h on 42 days old to(8.1±2.3)h on 6 months old.Multiple linear regression analysis showed nighttime awakenings of 42-day and 6-month-old infants were positively correlated with feeding asleep patterns (β=0.69,0.80,P<0.001). Conclusions The sleep patterns of infants changes significantly at 6 months old after birth, and the way of feeding asleep is significantly related to the number of nighttime awakenings.Parents should make appropriate response to reduce the occurrence of infant sleep problems.

Key words: infants, sleep, feeding asleep, nighttime awakening, cohort study