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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
1

Latent Tuberculosis Infection Treatment Completion and Predictors of Noncompletion among Visa Holders in the Rural Setting

Hutton, Scott 01 January 2018 (has links)
Latent tuberculosis infection (LTBI), a product of exposure to Mycobacterium tuberculosis (Mtb), can lead to tuberculosis (TB) and further cause death if untreated. Fortunately, TB can be prevented with LTBI treatment. Targeting newly arrived visa holders for LTBI screening and treatment is an effective strategy for decreasing future TB burden. However, LTBI treatment completion rates are low, and researches had primarily focused on the nonrural U.S. setting. This study, using a retrospective cohort design under the epidemiological disease triangle framework evaluated (a) the treatment completion rates for 2 cohorts of visa holders (i.e., immigrants, N = 31 and refugees, N = 109) with LTBI residing in the rural setting using Pearson's chi-square analysis, (b) mean times on LTBI treatment using Kaplan-Meier survival analysis, and (c) predictors of time on treatment using Cox proportional hazard regression. Study findings revealed immigrants had higher treatment noncompletion rates over refugees (25.6% and 19.3%). The potential risk factors for noncompletion were being older than 24 years of age (HR = 0.18, p = 0.01). There were also significant interactions for the time on treatment between (a) being < 25 years old and visa type (HR = 0.23, p = 0.04), (b) being < 25 years and traveling longer (miles) to treatment facility (HR = 0.25, p = 0.03), or (c) being < 25 years and Mtb blood-test positive (HR = 0.35, p = 0.05). These findings suggest interventions targeting visa holders older than 24 years may increase the rate of treatment completion and decrease the future TB cases. Therefore, the study promotes social change by providing actionable, rural-population-specific information for the prioritization of visa holders at increased risk of experiencing LTBI treatment noncompletion.

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