Troy D. Moon

Prof. Dr. Troy D. Moon

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Research Focus & Metrics

Academic Career Length

30Years (1997-Present)

(Calculated once Scilit publication data is synced: current year − year of first publication + 1)

Representative Publications

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1 April 2012 in Journal of the International AIDS Society
Verified
Journal Article
Open access
PDF file
TMTroy D. Moon
Troy D. Moon
CSCarla Silva‐Matos
Carla Silva‐Matos
ACAventina Cordoso
Aventina Cordoso
ABAlberto J Baptista
Alberto J Baptista
MSMohsin Sidat
Mohsin Sidat
Sten H. VermundSten H. Vermund
Sten H. Vermund
Background: In order to maximize the benefits of HIV care and treatment investments in sub‐Saharan Africa, programs can broaden to target other diseases amenable to screening and efficient management. We nested cervical cancer screening into family planning clinics at select sites also receiving PEPFAR support for antiretroviral therapy (ART) rollout. This was done using visual inspection with acetic acid (VIA) by maternal child health nurses. We report on achievements and obstacles in the first year of the program in rural Mozambique.Methods: VIA was taught to clinic nurses and hospital physicians, with a regular clinical feedback loop for quality evaluation and retraining. Cryotherapy using carbon dioxide as the refrigerant was provided at clinics; loop electrosurgical excision procedure (LEEP) and surgery were provided at the provincial hospital for serious cases. No pathology services were available.Results: Nurses screened 4651 women using VIA in Zambézia Province in year one of the program, more than double the Ministry of Health service target. VIA was judged positive for squamous intraepithelial lesions in 8% (n=380) of the women (9% if age ≥30 years (n=3154) and 7% if age <30 years (n=1497); p=0.02). Of the 380 VIA‐positive women, 4% (n=16) had lesions (0.3% of 4651 total screened) requiring referral to Quelimane Provincial Hospital. Fourteen (88%) of these 16 women were seen at the hospital, but records were inadequate to judge outcomes. Of women screened, 2714 (58%) either had knowledge of their HIV status prior to VIA or were subsequently sent for HIV testing, of which 583 (21%) were HIV positive.Conclusions: Screening and clinical services were successfully provided on a large scale for the first time ever in these rural clinics. However, health manpower shortages, equipment problems, poor paper record systems and a limited ability to follow‐up patients inhibited the quality of the cervical cancer screening services. Using prior HIV investments, chronic disease screening and management for cervical cancer is feasible even in severely resource‐constrained rural Africa.

1 April 2011 in JAIDS Journal of Acquired Immune Deficiency Syndromes
Verified
Journal Article
Closed access
RCRebecca E Cook
Rebecca E Cook
PCPhilip J Ciampa
Philip J Ciampa
MSMohsin Sidat
Mohsin Sidat
MBMeridith Blevins
Meridith Blevins
JBJaneen Mph Burlison
Janeen Mph Burlison
TMTroy D. Moon
Troy D. Moon
Background: A key challenge inhibiting the timely initiation of pediatric antiretroviral treatment is the loss to follow-up of mothers and their infants between the time of mothers' HIV diagnoses in pregnancy and return after delivery for early infant diagnosis of HIV. We sought to identify barriers to follow-up of HIV-exposed infants in rural Zambézia Province, Mozambique. Methods: We determined follow-up rates for early infant diagnosis and age at first test in a retrospective cohort of 443 HIV-infected mothers and their infants. Multivariable logistic regression models were used to identify factors associated with successful follow-up. Results: Of the 443 mother-infant pairs, 217 (49%) mothers enrolled in the adult HIV care clinic, and only 110 (25%) infants were brought for early infant diagnosis. The predictors of follow-up for early infant diagnosis were larger household size (odds ratio [OR], 1.29; 95% confidence interval [CI], 1.09-1.53), independent maternal source of income (OR, 10.8; 95% CI, 3.42-34.0), greater distance from the hospital (OR, 2.14; 95% CI, 1.01-4.51), and maternal receipt of antiretroviral therapy (OR, 3.15; 95% CI, 1.02-9.73). The median age at first test among 105 infants was 5 months (interquartile range, 2-7); 16% of the tested infants were infected. Conclusions: Three of four HIV-infected women in rural Mozambique did not bring their children for early infant HIV diagnosis. Maternal receipt of antiretroviral therapy has favorable implications for maternal health that will increase the likelihood of early infant diagnosis. We are working with local health authorities to improve the linkage of HIV-infected women to HIV care to maximize early infant diagnosis and care.

8 June 2010 in BMC International Health and Human Rights
Verified
Journal Article
Open access
PDF file
CACarolyn M Audet
Carolyn M Audet
JBJaneen Burlison
Janeen Burlison
TMTroy D. Moon
Troy D. Moon
MSMohsin Male Sidat
Mohsin Male Sidat
AVAlfredo E Vergara
Alfredo E Vergara
Sten H. VermundSten H. Vermund
Sten H. Vermund
A legacy of colonial rule coupled with a devastating 16-year civil war through 1992 left Mozambique economically impoverished just as the human immunodeficiency virus (HIV) epidemic swept over southern Africa in the late 1980s. The crumbling Mozambican health care system was wholly inadequate to support the need for new chronic disease services for people with the acquired immunodeficiency syndrome (AIDS). To review the unique challenges faced by Mozambique as they have attempted to stem the HIV epidemic, we undertook a systematic literature review through multiple search engines (PubMed, Google Scholar™, SSRN, AnthropologyPlus, AnthroSource) using Mozambique as a required keyword. We searched for any articles that included the required keyword as well as the terms 'HIV' and/or 'AIDS', 'prevalence', 'behaviors', 'knowledge', 'attitudes', 'perceptions', 'prevention', 'gender', drugs, alcohol, and/or 'health care infrastructure'. UNAIDS 2008 prevalence estimates ranked Mozambique as the 8th most HIV-afflicted nation globally. In 2007, measured HIV prevalence in 36 antenatal clinic sites ranged from 3% to 35%; the national estimate of was 16%. Evidence suggests that the Mozambican HIV epidemic is characterized by a preponderance of heterosexual infections, among the world's most severe health worker shortages, relatively poor knowledge of HIV/AIDS in the general population, and lagging access to HIV preventive and therapeutic services compared to counterpart nations in southern Africa. Poor education systems, high levels of poverty and gender inequality further exacerbate HIV incidence. Recommendations to reduce HIV incidence and AIDS mortality rates in Mozambique include: health system strengthening, rural outreach to increase testing and linkage to care, education about risk reduction and drug adherence, and partnerships with traditional healers and midwives to effect a lessening of stigma.

16 August 2011 in BMC Public Health
Verified
Journal Article
Open access
PDF file
KGKate Groh
Kate Groh
CACarolyn M Audet
Carolyn M Audet
ABAlberto Baptista
Alberto Baptista
MSMohsin Male Sidat
Mohsin Male Sidat
AVAlfredo Vergara
Alfredo Vergara
TMTroy D. Moon
Troy D. Moon
Background: HIV is treated as a chronic disease, but high lost-to-follow-up rates and poor adherence to medication result in higher mortality, morbidity, and viral mutation. Within 18 clinical sites in rural Zambézia Province, Mozambique, patient adherence to antiretroviral therapy has been sub-optimal. Methods: To better understand barriers to adherence, we conducted 18 community and clinic focus groups in six rural districts. We interviewed 76 women and 88 men, of whom 124 were community participants (CP; 60 women, 64 men) and 40 were health care workers (HCW; 16 women, 24 men) who provide care for those living with HIV. Results: While there was some consensus, both CP and HCW provided complementary insights. CP focus groups noted a lack of confidentiality and poor treatment by hospital staff (42% CP vs. 0% HCW), doubt as to the benefits of antiretroviral therapy (75% CP vs. 0% HCW), and sharing medications with family members (66% CP vs. 0%HCW). Men expressed a greater concern about poor treatment by HCW than women (83% men vs. 0% women). Health care workers blamed patient preference for traditional medicine (42% CP vs. 100% HCW) and the side effects of medication for poor adherence (8% CP vs. 83% CHW). Conclusions: Perspectives of CP and HCW likely reflect differing sociocultural and educational backgrounds. Health care workers must understand community perspectives on causes of suboptimal adherence as a first step toward effective intervention.

1 February 2018 in Journal of Affective Disorders
Verified
Journal Article
Closed access
CACarolyn M. Audet
Carolyn M. Audet
MWMilton L. Wainberg
Milton L. Wainberg
MOMaria A. Oquendo
Maria A. Oquendo
QYQiongru Yu
Qiongru Yu
MPMeridith Blevins Peratikos
Meridith Blevins Peratikos
TMTroy D. Moon
Troy D. Moon

19 June 2013 in American Journal of Epidemiology
Verified
Journal Article
Open access
PDF file
BSBryan E. Shepherd
Bryan E. Shepherd
MBMeridith Blevins
Meridith Blevins
LVLara M. E. Vaz
Lara M. E. Vaz
TMTroy D. Moon
Troy D. Moon
AKAaron M. Kipp
Aaron M. Kipp
Sten H. VermundSten H. Vermund
Sten H. Vermund
Patient retention is critical to the management of chronic diseases such as human immunodeficiency virus (HIV); hence, accurate measures of loss to follow-up (LTF) are important. Many different LTF definitions have been proposed. In a cohort of 9,692 HIV-infected patients initiating antiretroviral therapy in Mozambique from 2006 to 2011, we investigated the impact of the definition of LTF on estimated rates of LTF, acquired immunodeficiency syndrome (AIDS)-defining events, and death by applying 17 different definitions of LTF gleaned from HIV literature. We further investigated the impact of 4 specific components of the LTF definitions. Cumulative incidences of LTF and AIDS-defining events were estimated by treating death as a competing risk; Kaplan-Meier techniques and variations to account for informative censoring were used to estimate rates of mortality. Estimates of LTF 2 years after treatment initiation were high and varied substantially, from 22% to 84% depending on the LTF definition used. Estimates of 2-year mortality varied from 11% to 16%, and estimates of 2-year AIDS-defining events varied from 6% to 8%. As seen here, the choice of LTF definition can greatly affect study conclusions and program evaluations. Selection of LTF definitions should be based on the study outcome, available data on clinical encounters, and the patients' visit schedules; we suggest some general guidelines.