Table 1.

The clinical characteristics of the patients, based on questionnaire responses.

	All (n=90)
Do you have problems in fall asleep?	Yes 59.0%
Do you awake up during night?	Yes 98.8%
How many times do you wake up during night?	3.35±1.457
How long do you stay awake?	3.99±2.471
Have you been sleepy?	Yes 54.2%
Have you been tiredness?	Yes 75%
Do you have sleep or tired problems in your work?	Yes 48.2%
How often do sleep problems arise?	Continuously 52.2 %, Sporadically 6.7%; Often 36.7%; Periodically 4.4%