Our computer program TrenDx detects clinically significant trends in t
ime-ordered patient data by matching data to patterns called trend tem
plates, denoting multivariate temporal and value variation in normalit
y and in disease. Previously a purely constraint-based TrenDx diagnose
d pediatric growth trends and reached the same diagnoses as a panel of
experts, at a time no later than the experts, in most of 30 cases. Im
provement required resolving outstanding representational issues. In t
his paper we describe regression-based trend templates, updated TrenDx
algorithms, and their application to monitoring intensive care unit a
nd pediatric growth data. We focus on new results in diagnosing pediat
ric growth trends, and discuss potential application domains for TrenD
x.