Table 2 Comparison of prevalence of risk factors for APOs before and after the intervention

No folic acid supplementation

82 (29.1)

−23.4 (−31.0; 15.36)

<0.001

BMI < 18.5

16 (5.7)

−2.48 (−6.84; −1.79)

0.25

BMI ≥ 25

61 (21.6)

3.19 (−3.43; 9.78)

0.34

Need of vaccination against rubella

16 (5.7)

−13.83 (−19.29; 8.46)

<0.001

Need of vaccination against varicella

16 (5.7)

−7.45 (−12.38; 2.64)

0.002

Need of vaccination against hepatitis b

54 (19.1)

−22.34 (−29.5; −14.84)

<0.001

Smoking, any quantity

16 (5.7)

−7.45 (−12.38; 2.64)

0.002

Drinking alcohol, any quantity

71 (25.2)

−46.45 (−53.28; −38.75)

<0.001