Oxidative Stress in Women Treated with Atosiban for Impending Preterm Birth

Table 3

Analysis of levels of oxidative stress markers in groups with labor before and after 37 weeks of gestation before and after 48 hours of continuous administration of tocolytic therapy with Atosiban.

Variable		Birth before 37 weeks ()	Birth after 37 weeks ()	value
TOS (μmol/L)	0 h	24.847 ± 19.183	15.839 ± 14.135	0.060
	48 h	42.803 ± 34.683	25.792 ± 27.821	0.031
TAS (mmol/L)	0 h	0.937 ± 0.331	0.934 ± 0.395	0.612
	48 h	0.580 ± 0.336	0.565 ± 0.305	0.636
Carbonyl groups (μmol/L)	0 h	61.670 ± 28.555	68.606 ± 30.386	0.428
	48 h	96.231 ± 37.574	101.104 ± 36.872	0.654

Data are presented as mean value and standard deviation. TOS: total oxidant status; TAS: total antioxidant status. Analysis of variance tests were used to examine the relationship between time of labor and levels of markers of oxidative stress.