1 research outputs found
Establishing normal values for pediatric nighttime sleep measured by actigraphy: A systematic review and meta-analysis
Background: Despite the widespread use of actigraphy in pediatric sleep studies, there are currently no age-related normative data.
Objectives: To systematically review the literature, calculate pooled mean estimates of actigraphy-derived pediatric nighttime sleep variables and to examine the magnitude of change with age.
Methods: A systematic search was performed across eight databases of studies that included at least one actigraphy sleep variable from healthy children aged 0β18 years. Data suitable for meta-analysis were confined to ages 3β18 years with seven actigraphy variables analyzed using random effects meta-analysis and meta-regression performed using age as a covariate.
Results: In total, 1334 articles did not meet inclusion criteria; 87 had data suitable for review and 79 were suitable for meta-analysis. Pooled mean estimates for overnight sleep duration declined from 9.68 hours (3β5 years age band) to 8.98, 8.85, 8.05, and 7.4 for age bands 6β8, 9β11, 12β14, and 15β18 years, respectively. For continuous data, the best-fit (R2 = 0.74) equation for hours over the 0β18 years age range was 9.02 β 1.04 Γ [(age/10)^2 β 0.83]. There was a significant curvilinear association between both sleep onset and offset with age (p < .001). Sleep latency was stable at 19.4 min per night. There were significant differences among the older age groups between weekday and weekend/nonschool days (18 studies). Total sleep time in 15β18 years old was 56 min longer, and sleep onset and offset almost 1 and 2 hours later, respectively, on weekend or nonschool days.
Conclusion: These normative values have potential application to assist the interpretation of actigraphy measures from nighttime recordings across the pediatric age range, and aid future research