Fig. 3

Association between birth incidence rate of CBDs and its types and SDI in 1990 and 2021. Note: A-H:1990; I-P:2021; A & I: Congenital birth defects, B & J: Congenital heart anomalies, C & K: Congenital musculoskeletal and limb anomalies, D & L: Digestive congenital anomalies, E & M: Neural tube defects, F & N: Orofacial clefts, G & O: Urogenital congenital anomalies, H & P: Total chromosomal congenital birth defects, SDI: Socio-Demographic Index