Isoniazid preventive therapy completion between July-September 2019: A comparison across HIV differentiated service delivery models in Uganda
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Date
2024-01-02Author
Levicatus, Mugenyi
Proscovia, Mukonzo Namuwenge
Simple, Ouma
Baker, Bakashaba
Mastula, Nanfuka
Jennifer, Zech
Collins, Agaba
Andrew, Mijumbi Ojok
Fedress, Kaliba
John, Bossa Kato
Ronald, Opito
Yunus, Miya
Cordelia, Katureebe
Yael, Hirsch-Moverman
Metadata
Show full item recordAbstract
Background
Tuberculosis (TB) remains the leading cause of death among people living with HIV
(PLHIV). To prevent TB among PLHIV, the Ugandan national guidelines recommend Isoniazid
Preventive Therapy (IPT) across differentiated service delivery (DSD) models, an effective
way of delivering ART. DSD models include Community Drug Distribution Point
(CDDP), Community Client-led ART Delivery (CCLAD), Facility-Based Individual Management
(FBIM), Facility-Based Group (FBG), and Fast Track Drug Refill (FTDR). Little is
known about the impact of delivering IPT through DSD.
Methods
We reviewed medical records of PLHIV who initiated IPT between June-September 2019 at
TASO Soroti (TS), Katakwi Hospital (KH) and Soroti Regional Referral Hospital (SRRH).
We defined IPT completion as completing a course of isoniazid within 6–9 months. We utilized
a modified Poisson regression to compare IPT completion across DSD models and
determine factors associated with IPT completion in each DSD model.
Results
Data from 2968 PLHIV were reviewed (SRRH: 50.2%, TS: 25.8%, KH: 24.0%); females:
60.7%; first-line ART: 91.7%; and Integrase Strand Transfer Inhibitor (INSTI)-based regimen:
61.9%. At IPT initiation, the median age and duration on ART were 41.5 (interquartile
range [IQR]; 32.3–50.2) and 6.0 (IQR: 3.7–8.6) years, respectively. IPT completion overall was 92.8% (95%CI: 91.8–93.7%); highest in CDDP (98.1%, 95%CI: 95.0–99.3%) and lowest
in FBG (85.8%, 95%CI: 79.0–90.7%). Compared to FBIM, IPT completion was significantly
higher in CDDP (adjusted rate ratio [aRR] = 1.15, 95%CI: 1.09–1.22) and CCLAD
(aRR = 1.09, 95% CI 1.02–1.16). In facility-based models, IPT completion differed between
sites (p<0.001). IPT completion increased with age for FBIM and CCLAD and was lower
among female participants in the CCLAD (aRR = 0.82, 95%CI 0.67–0.97).
Conclusion
IPT completion was high overall but highest in community-based models. Our findings provide
evidence that supports integration of IPT within DSD models for ART delivery in
Uganda and similar settings.