Global Prevalence and Burden of Orofacial Clefts: A Systematic Analysis for the Global Burden of Disease Study 2019

Orofacial clefts, in particular cleft lip and cleft palate, are among the most common congenital anomalies. Despite guidelines recommending early surgical correction, a global backlog of untreated patients persists. This has made orofacial clefts an attractive target for global cleft care initiatives. The most recent global burden of orofacial clefts was estimated to be 529,758.92 disability-adjusted life years (95% uncertainty interval: 362,492.88-798,419.69 disability-adjusted life years), whereas the global prevalence of orofacial clefts was estimated to be 4.6 million (95% uncertainty interval: 3.8-5.7 million). An inverse relationship exists between the Sociodemographic Index and the burden of orofacial clefts. Sub-Saharan Africa, Middle East/North Africa, and South Asia are the regions carrying the most significant burden of orofacial clefts. This manuscript provides updated estimates of the global burden and prevalence of orofacial clefts, acting as a guide to direct future investments, resources, and initiatives from individuals and organizations engaged in global cleft care delivery with the goal of building sustainable cleft care capacity where it is needed the most.