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The University of Texas Medical Branch at Galveston

Evaluating the Cost-Effectiveness of Tuberculosis Video Directly Observed Therapy Program at Harris County Public Health & Environmental Services

Abstract

dc:description.abstract

Public health professionals are increasingly adopting telehealth to improve the effectiveness of existing services. For example, local health departments in the United States are pilot-testing an alternative approach to Directly Observed Therapy (DOT) among tuberculosis (TB) patients by using video technology. In standard DOT, an individual is required to take medications under the supervision of a healthcare worker in-person. Such a program is in place to increase medication adherence; however, it is labor-intensive, time-consuming, and costly. Alternatively, in the Video Directly Observed Therapy (VDOT), patients record and submit a video clip as evidence of medication adherence through a mobile device, which is then reviewed by the healthcare worker. A few pilot studies have demonstrated the feasibility and effectiveness of VDOT. However, research is limited on the cost-effectiveness of VDOT program. Within the state of Texas, Harris County has the highest number of TB cases and an incidence rate double that of the United States. Harris County Public Health & Environmental Services (HCPHES) is among the first local health departments to implement VDOT at a large-scale. Our study results provide valuable insight into the cost-effectiveness of VDOT at HCPHES. While the adherence rate of standard DOT was higher than that of VDOT (97% vs. 92%, p<0.05), there was less cost associated with VDOT. The use of VDOT instead of DOT saved $61,051.70, which was an 83 percent reduction in total cost. Furthermore, VDOT saved 1,832 driving hours (56,902 driving miles) that would have been spent with standard DOT. While this study demonstrates the value of VDOT, we recommend further research in the cost-effectiveness of VDOT using more refined methods.

Degree

thesis:*
Name thesis:degree_name
Public Health (Masters)
Level thesis:degree_level
Masters
Grantor
The University of Texas Medical Branch at Galveston

Author and committee

dc:creator, dc:contributor.*
Author dc:creator
  • Siddiqui, Sarah Batool
Advisor dc:contributor.advisor
  • Kaul, Sapna
Committee members dc:contributor.committeemember
  • Wiltz-Beckham, Dana
  • Pennel, Cara
  • Boyars, Michael
  • Castleberry, Tarah

Subjects

dc:subject × 4

Identifiers

dc:identifier.*
Handle dc:identifier.uri
https://hdl.handle.net/2152.3/11149
OAI identifier oai:identifier
oai:utmb-ir.tdl.org:2152.3/11149

Chain of custody

source
Harvested from
University of Texas Medical Branch
Base URL
utmb-ir.tdl.org/server/oai/request
Last updated
2026-07-24
Source record
OAI-PMH GetRecord
citation

Siddiqui, Sarah Batool. Evaluating the Cost-Effectiveness of Tuberculosis Video Directly Observed Therapy Program at Harris County Public Health & Environmental Services. Masters thesis, The University of Texas Medical Branch at Galveston, https://hdl.handle.net/2152.3/11149