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Sleep-related breathing disturbances, especially obstructive sleep apnoea syndrome (OSAS), are commonly encountered. Epidemiological studies from different countries have shown that poor sleep and complaints about insufficient sleep or poor sleep are often related to poor health. Different studies are, however, difficult to compare with each other. One of(More)
Previous studies have reported a great difference in snoring prevalence in different populations. In a recent study on men and women 20-45 y old, living in Sweden (Uppsala, Gothenbourg), Iceland (Reykjavík) and Belgium (Antwerp), data concerning snoring, etc., were collected using the same questions and scales in all the countries. In all four areas the(More)