Skip to main content

Advertisement

Table 2 Kruskal-Wallis test results of the average NTDs rates of the buffer regions before and after folic acid supplementation

From: Identifying environmental risk factors for human neural tube defects before and after folic acid supplementation

period Chi-Square Degrees of Freedom P
1998-2001 4.497 5 0.480
2002-2005 14.224 5 0.014