Maurits K A van Selms1, Carolina Marpaung1,2, Ani Pogosian1, Frank Lobbezoo1. 1. Department of Oral Kinesiology, Academic Centre for Dentistry Amsterdam (ACTA), University of Amsterdam and Vrije Universiteit, Amsterdam, The Netherlands. 2. Department of Prosthodontics, Faculty of Dentistry, Trisakti University, Jakarta, Indonesia.
Abstract
OBJECTIVE: The aim of this study was to investigate whether geographical variation exists in the prevalence rates and associated factors of parental-reported sleep bruxism (SB) among 7- to 12-year-old children living in three culturally different countries. METHODS: An identical questionnaire was completed by parents or guardians of children in the Netherlands (Europe), Armenia (West Asia) and Indonesia (Southeast Asia). Pearson's chi-square tests were used to investigate geographical variation in occurrence; logistic regression analyses were performed to study associations. RESULTS: In total, data of 2,562 questionnaires were analysed. The overall prevalence of parental-reported SB was significantly higher in Armenia (36.5%) than in the Netherlands and Indonesia (19.5% and 24.2%, respectively; P < 0.001). However, differences between countries seemed to have disappeared in children around the age of 12. Geographical variation in associated factors is reflected in the fact that, depending on the country, a variety of variables were positively related with parental-reported SB (i.e. younger age, and/or having male gender, and/or experiencing pressure or tension from the home situation, and/or being more easily scared and/or having difficulties in falling asleep). CONCLUSIONS: Considerable geographical variation can exist in the epidemiology of parental-reported SB in children. Cultural rules and standards could explain these findings.
OBJECTIVE: The aim of this study was to investigate whether geographical variation exists in the prevalence rates and associated factors of parental-reported sleep bruxism (SB) among 7- to 12-year-old children living in three culturally different countries. METHODS: An identical questionnaire was completed by parents or guardians of children in the Netherlands (Europe), Armenia (West Asia) and Indonesia (Southeast Asia). Pearson's chi-square tests were used to investigate geographical variation in occurrence; logistic regression analyses were performed to study associations. RESULTS: In total, data of 2,562 questionnaires were analysed. The overall prevalence of parental-reported SB was significantly higher in Armenia (36.5%) than in the Netherlands and Indonesia (19.5% and 24.2%, respectively; P < 0.001). However, differences between countries seemed to have disappeared in children around the age of 12. Geographical variation in associated factors is reflected in the fact that, depending on the country, a variety of variables were positively related with parental-reported SB (i.e. younger age, and/or having male gender, and/or experiencing pressure or tension from the home situation, and/or being more easily scared and/or having difficulties in falling asleep). CONCLUSIONS: Considerable geographical variation can exist in the epidemiology of parental-reported SB in children. Cultural rules and standards could explain these findings.
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