Dataset Information

Interaction of sleep quality and sleep duration on impaired fasting glucose: a population-based cross-sectional survey in China.

ABSTRACT: To explore the interactions of sleep quality and sleep duration and their effects on impaired fasting glucose (IFG) in Chinese adults.Cross-sectional survey.Community-based investigation in Xuzhou, China.15 145 Chinese men and women aged 18-75 years old who fulfilled the inclusion criteria.The Pittsburgh Sleep Quality Index was used to produce sleep quality categories of good, common and poor. Fasting blood glucose levels were assessed for IFG. Sleep duration was measured by average hours of sleep per night, with categories of <6, 6-8 and >8 h. The products of sleep and family history of diabetes, obesity and age were added to the logistic regression model to evaluate the addictive interaction and relative excess risk of interaction (RERI) on IFG. The attributable proportion (AP) of the interaction and the synergy index (S) were applied to evaluate the additive interaction of two factors. Bootstrap measures were used to calculate 95% CI of RERI, AP and S.The prevalence of IFG was greatest in those with poor sleep quality and short sleep duration (OR 6.37, 95% CI 4.66 to 8.67; p<0.001) compared with those who had good sleep quality and 6-8 h sleep duration, after adjusting for confounders. After adjusting for potential confounders RERI, AP and S values (and their 95% CI) were 1.69 (0.31 to 3.76), 0.42 (0.15 to 0.61) and 2.85 (2.14 to 3.92), respectively, for the interaction between poor sleep quality and short sleep duration, and 0.78 (0.12 to 1.43), 0.61 (0.26 to 0.87) and -65 (-0.94 to -0.27) for the interaction between good sleep quality and long sleep duration.The results suggest that there are additive interactions between poor sleep quality and short sleep duration.

SUBMITTER: Lou P

PROVIDER: S-EPMC3963090 | biostudies-other | 2014

REPOSITORIES: biostudies-other

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Interaction of sleep quality and sleep duration on impaired fasting glucose: a population-based cross-sectional survey in China.

Lou Peian P Chen Peipei P Zhang Lei L Zhang Pan P Chang Guiqiu G Zhang Ning N Li Ting T Qiao Cheng C

BMJ open 20140313 3

<h4>Objectives</h4>To explore the interactions of sleep quality and sleep duration and their effects on impaired fasting glucose (IFG) in Chinese adults.<h4>Design</h4>Cross-sectional survey.<h4>Setting</h4>Community-based investigation in Xuzhou, China.<h4>Participants</h4>15 145 Chinese men and women aged 18-75 years old who fulfilled the inclusion criteria.<h4>Primary and secondary outcome measures</h4>The Pittsburgh Sleep Quality Index was used to produce sleep quality categories of good, co ...[more]

PMID: 24625639

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Project description:In this large perspective cohort among European children and adolescents, we observed that daytime napping was positively associated with bone stiffness, while short or long sleep duration combined with poor sleep quality was associated with less bone stiffness. Our findings are important for obtaining optimal bone stiffness in childhood.IntroductionTo examine the cross-sectional and longitudinal associations between sleep duration, sleep quality, and bone stiffness index (SI) in European children and adolescents.MethodsFour thousand eight hundred seventy-one children aged 2-11 years from the IDEFICS study and 861 children aged 6-15 years from the subsequent I.Family study were included. Sleep duration (i.e., nocturnal sleep and daytime napping) and sleep quality (i.e., irregularly bedtime routine, have difficulty falling asleep and trouble getting up in the morning) were reported by self-administrated questionnaires. Nocturnal sleep duration was converted into age-specific z-scores, and total sleep duration was classified into short, adequate, and long based on the National Sleep Recommendation. Calcaneal SI of both feet were measured using quantitative ultrasound. Linear mixed-effects models with country as a random effect were used, with adjustments for sex, age, pubertal status, family socioeconomic status, physical activity, screen time, body mass index, and daylight duration.ResultsNocturnal sleep duration z-scores were positively associated with SI percentiles among participants with adequate sleep duration at baseline. Moreover, the positive association between daytime napping and SI percentiles was more pronounced in participants with adequate sleep duration at baseline, while at 4-year follow-up was more pronounced in participants with short sleep duration. In addition, extreme sleep duration at baseline predicted lower SI percentiles after 4 years in participants with poor sleep quality.ConclusionThe positive associations between nocturnal sleep, daytime napping and SI depended on total sleep duration. Long-term detrimental effect of extreme sleep duration on SI only existed in individuals with poor sleep quality.

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Dataset Information

Interaction of sleep quality and sleep duration on impaired fasting glucose: a population-based cross-sectional survey in China.

Publications

Interaction of sleep quality and sleep duration on impaired fasting glucose: a population-based cross-sectional survey in China.

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