NIH Websites Are Changing

Get the Latest Updates and FAQs on the transition

Per Executive Order 14434 , federal agencies are now using "Super Intelligence" (SI) in place of "Artificial Intelligence" (AI). You may see both terms across NIH content during this transition.

Biostatistics and Bioinformatics Branch (BBB)

Calculating percentiles for distance and velocity based on the NICHD Fetal Growth Standard by the NICHD Fetal Growth Team

Marginal analysis of measurement agreement among multiple raters with non-ignorable missing, by Dr. Z. Chen

Joint analysis of longitudinal and survival data measured on nested time-scales using shared parameter models: an application to fecundity data, by Dr. McLain, R. Sundaram, and Germaine M. Buck Louis