The Effect of Preoperative Melatonin on Nuclear Erythroid 2-Related Factor 2 Activation in Patients Undergoing Coronary Artery Bypass Grafting Surgery

Table 1

Preoperative clinical data of the patients*.

Variable	Melatonin group (𝑛=15)	Placebo group (𝑛=15)	𝑃
Male/female sex, 𝑛	14/1	12/3	NS
Age, 𝑦	58.1 ± 9.8	60.1 ± 9.2	NS
Hypertension, 𝑛	8	7	NS
Diabetes mellitus type I or II, 𝑛	4	4	NS
Acute myocardial infarction	0	0	NS
Ejection fraction, %	58.5 ± 7.2	56.5 ± 4.6	NS

*Data are presented as the mean ± SD, where indicated. NS: not statistically significant.