Depressive symptoms of female nursing staff working in stressful environments and their association with serum creatine kinase and lactate dehydrogenase – a preliminary study

Table 1 Participant characteristics (n = 93)

		Mean (SD)
Demographic data	Age	40.1 (13.4)
	BMI (kg/m²)	22.8 (4.24)
Serum data	Cortisol (μg/dL)	11.5 (5.43)
	CK (U/L)	106 (65.2)
	CK-MM (ppm)	5.08 (4.49)
	LDH (IU/L)	141 (30.2)
	BUN (mg/dL)	13.3 (3.92)
	AST (IU/L)	20.3 (7.31)
	ALT (IU/L)	18.3 (14.6)
		n
Smoking habit	Non smokers	53
	Ex- and present smokers	40
Alcohol consumption	Once or less than once per week	72
	More than twice per week	11
Leisure-time physical activities	Once or less than once per month	62
	More than twice per month	31

ALT, alanine aminotransferase; AST, aspartate aminotransferase; BUN, blood urea nitrogen; CK, creatine kinase; CK-MM, creatine kinase isozyme muscle M chain; LDH, lactate dehydrogenase.

ISSN: 1751-0759