Nonparametric estimation of waiting time distributions in a Markov model based on current status data.

Datta, Lan and Sundaram have a paper available online for the Journal of Statistical Planning and Inference. This further develops approaches to estimating multi-state processes which have a tree structure (i.e. the process is progressive and there is only one possible path to a particular state) under current status observation, first proposed by Datta and Sundaram (Biometrics, 2006). In this paper a method for estimation of the (marginal) waiting time distributions in each state is developed.