What is the frequency of having cystic fibrosis or being a carrier in a population?

Cystic fibrosis (CF) occurs in approximately 1 in 3,500 live births in individuals of European descent, while the carrier frequency is about 1 in 25. In other populations, such as those of African or Asian descent, the incidence is lower, with carrier rates around 1 in 60 to 1 in 100. Overall, the prevalence of CF and carrier status varies significantly by ethnicity and geographic region.