Hospital-TTD-Mod: Technical Documentation
A model of tobacco dependence treatment for adult inpatients in acute hospitals in England. Documentation of model version 3.0.0
Front matter
Overview
Hospital-TTD-Mod is a deterministic model of tobacco dependence treatment for adult inpatients in acute hospitals in England. Each year from 2019 to 2045 it puts the year’s patients, from Hospital Episode Statistics, through the care pathway with and without the service, and follows each year’s patients for five years after discharge. Patients who quit have a lower risk of admission for, and of death from, each smoking-related condition, falling with time since quitting.
The results are given from two sides, which value the same quits and are never added together: the trust (Tier 1), the cost of the service against the admissions its patients avoid, and the health system (Tier 2), the cost of the service, support after discharge and ward staff time against the NHS treatment costs avoided and the quality-adjusted life years gained over the lifetimes of the extra people who quit. Results are for England, each integrated care board and each trust.
Address for correspondence
Dr Duncan Gillespie
Sheffield Addictions Research Group
Sheffield Centre for Health and Related Research (SCHARR)
School of Medicine and Population Health (Division of Population Health)
The University of Sheffield
Regent Court, Regent Street, Sheffield, S1 4DA, UK
Email: duncan.gillespie@sheffield.ac.uk
Version information
This is the documentation of Hospital-TTD-Mod version 3.0.0. It is a working version and is subject to review and development.
License and citation
This report is licensed to The University of Sheffield under a Creative Commons CC-BY 4.0 license.
How to cite:
Gillespie, D, et al. (2026). Hospital-TTD-Mod: a model of tobacco dependence treatment for adult inpatients in acute hospitals in England. Technical documentation of model version 3.0.0. The University of Sheffield.
Funding
Initial development of the Hospital-TTD-Mod originated from commissioned work by NHS England to review, consolidate, and improve upon previous modelling of the value for money from hospital tobacco dependence treatment services.
Model development was further supported by commissioned work from Yorkshire Cancer Research to evaluate the acute inpatient component of the QUIT Programme in South Yorkshire.