Morningness-Eveningness Chronotypes, Sleep Quality, and Sleepiness Among Nurses

Table 2: The relation of demographic and job variables with sleep quality and daytime sleepiness of nurses.

Variables	Sleep quality		Statistics	Daytime sleepiness		Statistics
Variables	Good	Poor		No	Yes
Age
Less than 30 yrs	14	41	X²=0.008 *P-value=0.93	34	21	X²=0.04 *P-value=0.83
More than 30 yrs	17	48	X²=0.008 *P-value=0.93	39	26	X²=0.04 *P-value=0.83
Years of employment
Less than 10 yrs	17	56	X²=0.63 *P-value=0.42	44	29	X²=0.02 *P-value=0.87
More than 10 yrs	14	33	X²=0.63 *P-value=0.42	29	18	X²=0.02 *P-value=0.87
Gender
Male	6	17	X²=0.001 *P-value=0.97	15	8	X²=0.23 *P-value=0.63
Female	25	72	X²=0.001 *P-value=0.97	58	39	X²=0.23 *P-value=0.63
Marital status
Single	10	18	X²=1.8 *P-value=0.17	23	5	X²=6.9 *P-value=0.008
Married	21	71	X²=1.8 *P-value=0.17	50	42	X²=6.9 *P-value=0.008
Shift work
Rotating	14	69	X²=11.29 *P-value=0.001	44	39	X²=6.9 *P-value=0.009
Fixed	17	20	X²=11.29 *P-value=0.001	29	8	X²=6.9 *P-value=0.009

Data are presented as absolute numbers. *Chi-squared test