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- Title
Mother-reported sleep, accelerometer-estimated sleep and weight status in Mexican American children: sleep duration is associated with increased adiposity and risk for overweight/obese status.
- Authors
Martinez, Suzanna M.; Greenspan, Louise C.; Butte, Nancy F.; Gregorich, Steven E.; De Groat, Cynthia L.; Deardorff, Julianna; Penilla, Carlos; Pasch, Lauri A.; Flores, Elena; Tschann, Jeanne M.
- Abstract
We know of no studies comparing parent-reported sleep with accelerometer-estimated sleep in their relation to paediatric adiposity. We examined: (i) the reliability of mother-reported sleep compared with accelerometer-estimated sleep; and (ii) the relationship between both sleep measures and child adiposity. The current cross-sectional study included 303 Mexican American mother-child pairs recruited from Kaiser Permanente Northern California. We measured sleep duration using maternal report and accelerometry and child anthropometrics. Concordance between sleep measures was evaluated using the Bland-Altman method. We conducted zero-ordered correlations between mother-reported sleep, accelerometer-estimated sleep and child BMI z-scores ( BMIz). Using linear regression, we examined three models to assess child BMIz with mother-reported sleep (model 1), accelerometer-estimated sleep (model 2) and both sleep measures (model 3). Children had an average age of 8.86 years (SD = 0.82). Mothers reported that their child slept 9.81 ± 0.74 h [95% confidence interval ( CI): 9.72, 9.89], compared to 9.58 ± 0.71 h (95% CI: 9.50, 9.66) based on accelerometry. Mother-reported sleep and accelerometer-estimated sleep were correlated ( r = 0.33, P < 0.001). BMIz outcomes were associated negatively with mother-reported sleep duration (model 1: β = −0.13; P = 0.02) and accelerometer-estimated sleep duration (model 2: β = −0.17; P < 0.01). Accounting for both sleep measures, only accelerometer-measured sleep was related to BMIz (model 3: β = −0.14, P = 0.02). Each sleep measure was related significantly to adiposity, independent of covariates. Accelerometry appeared to be a more reliable measure of children's sleep than maternal report, yet maternal report may be sufficient to examine the sleep-adiposity relationship when resources are limited.
- Subjects
CALIFORNIA; ACCELEROMETERS; OBESITY; OVERWEIGHT children; BODY weight
- Publication
Journal of Sleep Research, 2014, Vol 23, Issue 3, p326
- ISSN
0962-1105
- Publication type
Article
- DOI
10.1111/jsr.12114