Sleep Quality, Daytime Sleepiness and Insomnia in Patients With Endometriosis: a Case-control Study.

"Pittsburgh Sleep Quality Index is an effective instrument used to measure the quality and patterns of sleep of patients. It allows evaluating poor from good sleep by assessing seven domains. A total score ≤ 5 indicated good sleep quality while a total score \> 5 was indicated poor sleep quality."

Epworth sleepiness scale is an 8-item questionnaire developed to measure average daytime sleepiness. A total score ≥ 10 indicates excessive daytime sleepiness.

Insomnia Severity Index is a 7-item questionnaire developed to measure insomnia. A total score between 0 and 7 correspond to not clinically significant insomnia, between 8 and 14 to subthreshold insomnia, between 15 and 21 to clinical insomnia (moderate), between 22 and 28 to clinical insomnia (severe).

The Endometriosis Health Profile is a patient generated instrument that evaluates disease-specific health-related quality of life in patients with endometriosis. The questionnaire is administrable to all patients with endometriosis and it consists in 30 items divided in 5 domains (pain, control and powerlessness, emotional well-being, social support and self-image). Each scale for each domain is comprised between 0 (indicating the best health status) and 100 (indicating the worst health status).