Table 3.

Physiological variable values according to sleep quality and sleep duration

	Sleep quality				Sleep duration
	Poor (n=99)	Good (n=189)	P*1)	P**2)	<7 h (n=107)	≥7 h (n=181)	P*	P**
Perceived stress	1.4±0.1	1.4±0.1	0.524	0.722	1.6±0.1	1.3±0.1	0.047	0.001
Depression score	11.9±0.8	12.2±0.7	0.798	0.837	14.3±0.9	10.8±0.6	0.002	0.001
Anxiety score	39.5±1.1	39.5±0.8	0.987	0.799	42.0±1.1	38.0±0.8	0.004	<0.001

Values represent the mean±SD.

¹⁾Values were calculated using the Student’s t-test.

²⁾Values were calculated using a generalized linear model adjusted for age, sex, alcohol consumption status, and smoking status.