Rates of Down syndrome at livebirth by one-year maternal age intervals in studies with apparent close to complete ascertainment
in populations of European origin: a proposed revised rate schedule for use in genetic and prenatal screening.
This cohort has complete ascertainment
and follow-up at 15-29 years of age until 31st December 2011.
More complete ascertainment
is needed globally to better understand pertussis epidemiology and transmission, thereby facilitating the development of improved vaccines and vaccination strategies to improve future disease control.
Studies with complete ascertainment
of prenatally diagnosed NTD cases indicate that fortification has prevented up to 50% of NTDs (1).