Year

Number of pregnant women

Blood lead level, µg/dL (X ± s.e.)

Веfore the bioprophylactic course

After the bioprophylactic course

2008

1119

3.09 ± 0.19

2.16 ± 0.15

2009

81

2.83 ± 0.33

1.32 ± 0.63

2010

461

3.44 ± 0.25

2.06 ± 0.18

2011

558

3.76 ± 0.33

1.91 ± 0.23

2012

593

2.74 ± 0.15

1.53 ± 0.11

2013

515

3.25 ± 0.31

1.74 ± 0.19

Total

3327

3.20 ± 0.11

1.90 ± 0.08*