Table 1.

The content of 8-hydroxy-2’-deoxyguanosine (8-OHdG, ng/ml) in the blood of women living in the settlements of Kyzylorda and Karaganda regions (M ± m)

Region	Age, number surveyed	8-OHdG (ng/ml) M ± m
Kyzylorda region
Aralsk. n = 150	18-29 years old. n = 50	18.96 ± 0.86
	30-39 years old. n = 50	51.93 ± 0.89*
	40-49 years old. n = 50	32.62 ± 1.25
Ayteke-Bi. n = 150	18-29 years old. n = 50	22.21 ± 0.98
	30-39 years old. n = 50	48.69 ± 0.92*
	40-49 years old. n = 50	32.54 ± 1.12
Karaganda region
Atasu. n = 225	18-29 years old. n = 75	19.05 ± 0.78
	30-39 years old. n = 75	33.51 ± 0.98
	40-49 years old. n = 75	30.06 ± 0.89

Note the statistical significance of differences between the studied region and the comparison region: p < 0.05

^*. Comparison of groups was carried out according to the criterion of Kruskal-Wallis