OBJECTIVES: There is no up-to-date literature review of physiologically based, aggregate
weighted 'track and trigger'systems (AWTTS) and few data on their predictive ability for
serious adverse outcomes. The aim of this study was to describe the AWTTS in clinical use
and assess their ability to discriminate between survivors and non-survivors of hospital
admission, based on an initial set of vital signs. MATERIALS AND METHODS: A systematic
review of the literature was performed, to describe the AWTTS, their components and their …

OBJECTIVES: There is no up-to-date literature review of physiologically-based, single-
parameter weighted “track and trigger” systems (SPTTS) and little data on their sensitivity
and specificity to predict adverse outcomes. The aim of this study was to describe the SPTTS
in clinical use and measure their sensitivity and specificity when using admission vital signs
data for predicting in-hospital mortality. MATERIALS AND METHODS: We performed a
systematic review of the literature to describe the SPTTS, their components and their …