Hans C. van Houwelingen

Johannes Cornelis "Hans" van Houwelingen (25 March 1945 – 14 May 2026) was a Dutch mathematician and a professor of medical statistics at Leiden University.

Life and career After graduating from Utrecht University in 1968 with a major in mathematics and a minor in theoretical physics and mathematical statistics, Van Houwelingen started working at Utrecht University at the Institute for Mathematical Statistics. In 1969 he joined Philips. A year later he returned to the Institute for Mathematical Statistics. Van Houwelingen earned his PhD at Utrecht University in 1973; his dissertation, entitled On empirical Bayes rules for the continuous one-parameter exponential family, was supervised by Gerard Jan Leppink. He continued to publish as an emeritus, at least until 2024.

Van Houwelingen died in De Bilt on 14 May 2026, at the age of 81.

Dutch Biometry Award for joint paper with R. Elgalta, J.J. Houwing-Duistermaat, C. van Duijn

Books Inleiding tot de medische statistiek (in Dutch), 1993, with Theo Stijnen and Roel van Strik, Dynamic Prediction in Clinical Survival Analysis, 2011, with Hein Putter, published by Taylor & Francis, Handbook of Survival Analysis, 2013, with John P. Klein, Joseph G. Ibrahim, and Thomas H. Scheike, published by Taylor & Francis,