A Comparison of Fatigue, Level of Physical Activity, and Sleep Quality in Pregnant and Non-Pregnant Nurses Working 16-Hour Shifts in Japan : Table 1

Table 1: Characteristics of the participants.
^aunpaired t test
^bFisher's exact test.

Variable		n	Mean	SD	p-value
Age	Pregnant	11	29.5	3.8	0.029^a
Age	Non- Pregnant	15	34.1	5.6	0.029^a
Years of experience	Pregnant	11	7.2	4.0	0.081^a
Years of experience	Non- Pregnant	15	10.6	5.2	0.081^a
Numbers of month of night shift experience	Pregnant	11	75.9	48.2	0.118^a
Numbers of month of night shift experience	Non- Pregnant	15	114.7	67.7	0.118^a
Numbers of night shifts/months	Pregnant	11	4.5	1.6	0.326^a
Numbers of night shifts/months	Non- Pregnant	15	5.1	1.4	0.326^a
Bed time after day shifts	Pregnant	11	22:06	40	0.545^a
Bed time after day shifts	Non- Pregnant	15	23:05	55	0.545^a
Wake-up time after night shifts	Pregnant	11	6:33	1.53	0.361^a
Wake-up time after night shifts	Non- Pregnant	15	7:05	1.01	0.361^a
Nap start time during night shifts	Pregnant	11	1:40	2.24	0.793^a
Nap start time during night shifts	Non- Pregnant	15	1:53	1.44	0.793^a
End time of nap during night shifts	Pregnant	11	3:10	2.13	0.432^a
End time of nap during night shifts	Non-Pregnant	14	3:48	1.42	0.432^a
Nap time	Pregnant	11	109	20	0.246^a
Nap time	Non-Pregnant	15	100	19	0.246^a
PSQI-J	Pregnant	11	6.9	2.8	0.664^a
PSQI-J	Non-Pregnant	15	7.5	4.0	0.664^a
Daily shift steps	Pregnant	11	9635	2128	0.093^a
Daily shift steps	Non-Pregnant	15	12770	5638	0.093^a
Night shift steps	Pregnant	11	16334	3703	0.223^a
Night shift steps	Non-Pregnant	15	22047	14734	0.223^a
Day of steps	Pregnant	11	4707	2771	0.122^a
Day of steps	Non-Pregnant	15	8069	6475	0.122^a
	Pregnant (n=11)		Non- Pregnant (n=15)		P-value
	n	%	n	%	P-value
Prenatal	8	53.3	7	46.7	0.184^b
Multipara	3	27.3	8	72.7	0.184^b
Family living together	11	52.4	10	47.6	0.033^b
Non-family living together	0	0	5	100.0	0.033^b
Children living together	3	23.1	7	72.7	0.315^b
Non-Children living together	8	61.5	8	46.7	0.315^b