Associations of Early Life Risk Factors With Infant Sleep Duration

作者：Nevarez Michael D; Rifas Shiman Sheryl L; Kleinman Ken P; Gillman Matthew W; Taveras Elsie M^*

来源：Academic Pediatrics, 2010, 10(3): 187-193.

DOI：10.1016/j.acap.2010.01.007

• infants
• postnatal determinants
• prenatal
• sleep

Objective.-Insufficient sleep in children is associated with adverse health effects. We examined the associations of early life risk factors with infant sleep duration.
Methods.-We studied 1676 mother-infant pairs in a prebirth cohort study. Main outcomes were mothers' report of their infants' average 24-hour sleep duration at ages 6 months, 1 year, and 2 years.
Results.-Infants slept mean standard deviation [SD] durations of 12.2 (2.0) hours/day at age 6 months, 12.8 (1.6) hours/day at age 1 year, and 11.9 (1.3) hours/day at age 2 years. In multivariable regression models, maternal antenatal depression, introduction of solids at age <4 months, and infant TV/video viewing were associated with shorter sleep durations at both 1 and 2 years of age. Estimates were 0.36 fewer hours/day of sleep for maternal antenatal depression, 0.39 fewer hours/day of sleep if infant was introduced to solids at age <4 months, and 0.11 fewer hours/day of sleep for each 1 hour of TV viewed per week. Attendance at child care outside the home was associated with 0.18 fewer hours/day of sleep at age 2 years. At age 2 years, black, Hispanic, and Asian infants slept 0.40, 0.82, and 0.95, respectively, fewer hours per day than white infants.
Conclusions.-Maternal depression during pregnancy, early introduction of solid foods, infant TV viewing, and attendance of child care were associated with shorter infant sleep duration. Racial/ethnic minority children slept fewer hours in the first 2 years of life than white children. Our results suggest that various risk factors, some potentially modifiable, are worthy of clinical consideration when addressing infant sleep duration.

• 出版日期2010-6