Investigation of the Relationship between Sleep Habits and Sleep Structure by Polysomnography in 3-10 Year-Old Children Referring to the Sleep Department of Qazvin Children's Hospital, Iran

Shabnam  Jalilolghadr; Zahra  Soltantooyeh; Aliraza  Razzaghi; Atieyh Alsadat  Moeeni; Khatereh  Khameneh Pour; Zahra  Mohammadi

doi:10.18502/jss.v8i1-2.17868

Shabnam Jalilolghadr Children Growth Research Center, Qazvin University of Medical Sciences, Qazvin, Iran
Zahra Soltantooyeh Children Growth Research Center, Qazvin University of Medical Sciences, Qazvin, Iran
Aliraza Razzaghi Children Growth Research Center, Qazvin University of Medical Sciences, Qazvin, Iran
Atieyh Alsadat Moeeni Children Growth Research Center, Qazvin University of Medical Sciences, Qazvin, Iran
Khatereh Khameneh Pour Children Growth Research Center, Qazvin University of Medical Sciences, Qazvin, Iran
Zahra Mohammadi Children Growth Research Center, Qazvin University of Medical Sciences, Qazvin, Iran

DOI: https://doi.org/10.18502/jss.v8i1-2.17868

Keywords: Sleep habits; Child; Sleep; Polysomnography

Abstract

Background and Objective: Improper sleeping habits can affect children's sleep structure and reduce the quantity and quality of sleep. In this study, we aimed to investigate the relationship between sleep habits and sleep structure in children.

Materials and Methods: The population of this cross-sectional descriptive-analytical study included children aged 3-10 years who were referred to the sleep department of Children's Hospital in Qazvin City, Iran, during 2015-2021 and had undergone standard polysomnography (PSG). The Iranian version of the Children's Sleep Habits Questionnaire (CSHQ) was completed by parents. Sleep structure parameters of PSG were used. Statistical tests included mean, standard deviation (SD), and independent t-test.

Results: Among 163 patients, 102 (62.6%) were boys. The average age of the children was 6.35±3.72 years. According to CSHQ, the average score of "resistance before sleep" was 2.08±0.38 and the highest score was related to "falling asleep in your bed" (2.50±0.81). The highest score of "sleep duration" was related to "sleeping the same amount each day" (2.54±0.75). The comparison of PSG findings showed that the mean score of bedtime resistance had a statistically significant relationship with increased stage N1 and decreased sleep efficiency (SE) (P = 0.01). Moreover, the mean score of "sleep duration" was associated with abnormal Arousal Index (AI) (P = 0.01).

Conclusion: According to the results, children who were reported to be sleep-deprived had a higher percentage of light sleep and frequent night awakenings, and less SE in the PSG. Appropriate health strategies are needed to improve chil- dren's sleep habits