From: Water disinfection by-products and the risk of specific birth defects: a population-based cross-sectional study in Taiwan
Water region
No. of birth
No. with any birth defects
Prevalence (%)
Region I
111372
717
0.6
Region II
106435
513
0.5
Region III
49503
255
Region IV
53211
293
Region V
75528
378