4.6 Article

Early-phase scale-up of isoniazid preventive therapy for people living with HIV in two districts in Malawi (2017)

Journal

PLOS ONE
Volume 16, Issue 4, Pages -

Publisher

PUBLIC LIBRARY SCIENCE
DOI: 10.1371/journal.pone.0248115

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Funding

  1. U.S. President's Emergency Plan for AIDS Relief (PEPFAR) through the Centers for Disease Control and Prevention (CDC)

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This study found that early-phase IPT uptake among adults at ART centers in Malawi was high, but child uptake needed improvement. National programs could adapt this framework to evaluate their ICF-IPT care cascades.
Background Isoniazid preventive therapy (IPT) against tuberculosis (TB) is a life-saving intervention for people living with HIV (PLHIV). In September 2017, Malawi began programmatic scale-up of IPT to eligible PLHIV in five districts with high HIV and TB burden. We measured the frequency and timeliness of early-phase IPT implementation to inform quality-improvement processes. Methods and findings We applied a two-stage cluster design with systematic, probability-proportional-to-size sampling of six U.S. Centers for Disease Control and Prevention (CDC)-affiliated antiretroviral therapy (ART) centers operating in the urban areas of Lilongwe and Blantyre, Malawi (November 2017). ART clinic patient volume determined cluster size. Within each cluster, we sequentially sampled approximately 50 PLHIV newly enrolled in ART care. We described a quality-of-care cascade for intensive TB case finding (ICF) and IPT in PLHIV. PLHIV newly enrolled in ART care were eligibility-screened for hepatitis and peripheral neuropathy, as well as for TB disease using a standardized four-symptom screening tool. Among eligible PLHIV, the overall weighted IPT initiation rate was 70% (95% CI: 46%-86%). Weighted IPT initiation among persons aged <15 years (30% [95% CI: 12%-55%]) was significantly lower than among persons aged >= 15 years (72% [95% CI: 47%-89%]; Rao-Scott chi-square P = 0.03). HIV-positive children aged <5 years had a weighted initiation rate of only 13% (95% CI: 1%-79%). For pregnant women, the weighted initiation rate was 67% (95% CI: 32%-90%), similar to non-pregnant women aged >= 15 years (72% [95% CI: 49%-87%]). Lastly, 95% (95% CI: 92%-97%) of eligible PLHIV started ART within one week of HIV diagnosis, and 92% (95% CI: 73%-98%) of patients receiving IPT began on the same day as ART. Conclusions Early-phase IPT uptake among adults at ART centers in Malawi was high. Child uptake needed improvement. National programs could adapt this framework to evaluate their ICF-IPT care cascades.

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