Prevalance of the sleep apnea syndrome in fatigue patients,cross-sectional, observational study

UMIN ID: UMIN000001451

Registered date:22/10/2008

Basic Information

• Recruitment status: Complete: follow-up complete
• Health condition(s) or Problem(s) studied: Sleep apnea syndrome
• Date of first enrollment: 2008/03/01
• Target sample size: 61
• Countries of recruitment: Japan
• Study type: Observational

Outcome(s)

• Primary Outcome: The prevalance of sleep apnea syndrome in fatigue patients. The diagnosis of sleep apnea syndrome is made by portable oxgen saturation monitor.The diagnostic criteria for sleep apnea syndrome is as follows;The number of the event that their oxgen saturation levels are below 3% or less than their baseline saturation levels are 15 times or more in an hour(positive likelihood ratio 5.1,negative likelihood ratio 0.54 to the diagnosis of sleep apnea syndrome by polysomnography). The prevalance of sleep apnea syndrome is defined as the number of included patient diagnosed as sleep apnea syndrome devided by the number of patient those who visited office for the first time with complaint of persistent fatigue .

Key inclusion & exclusion criteria

• Age minimum: 20years-old
• Age maximum: Not applicable
• Gender: Male and Female
• Exclude criteria: We exclude the patients who are not capable of replying and writing to fill inquiry owing to dementia,visual disorder and so on (The office physician is in charge of the decision to exclude).

Related Information

• Primary Sponsor: Department of General Medicine and Primary care Tsukuba University Hospital
• Source(s) of Monetary Support: The Japanese Academy of Family Medicine