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Figure 1 | BMC Musculoskeletal Disorders

Figure 1

From: Sleep quality, the neglected outcome variable in clinical studies focusing on locomotor system; a construct validation study

Figure 1

Final screening tool for evaluation of Sleep (English version not validated yet). The answers of the first two mandatory questions are summed to a score (0 = normal sleep, 12 = fully disturbed sleep resulting in severe daytime tiredness). The facultative question 3 asks for the reason sleep is affected, and the facultative question 4 inquires about sleep medication. Questions 3 and 4 are not part of the summed score.

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