About the ACROSS study

Sleep problems are common in adolescents. Studies have consistently demonstrated that sleep disturbances are prevalent, affecting up to 50% of this population. The situation is worrying as an expanding body of evidence has demonstrated the close relationship between inadequate sleep and daytime impairment, obesity, diabetes, cardiovascular complications, disruptive behaviors, mental health and poor academic performance. There are multiple factors that contribute to sleep problems in adolescents including biological, social and cultural factors. Although we understand that geographical and cultural factors play a significant role in sleep-wake pattern differences, there are limited cross-cultural studies exploring how risk factors and barriers to sleep in adolescents differ across different cultures. Most existing studies are country specific which limit adequate cross-cultural comparisons as they utilize different inventories, age groups, and measurement methods. The variability in methodology makes it difficult to make accurate comparisons across different cultures. Identifying similarities and differences in sleep patterns/problems as well as associated factors across various regions will allow us to have more thorough understanding of adolescent sleep, which is important step in sharpening strategies to remedy this concerning situation.