Food security in the context of HIV: towards harmonized definitions and indicators

"Food engages people, as we know": health care and service providers' experiences of using food as an incentive in HIV care and support in British Columbia, Canada

Food insecurity is widely documented among people living with HIV (PLWH) worldwide, and it presents significant challenges across the spectrum of HIV care and support. In North America, the prevalence of food insecurity among PLWH exceeds 50%. In the province of British Columbia (BC), it exceeds 65%. It comes as no surprise that food has become an essential tool in supporting and engaging with PLWH. Over the past decade, however, a shift has taken place, and food has become an incentive to boost uptake and outcomes of prevention, testing, treatment, and support. To explore this practice, we drew on a qualitative case study of incentives in the care and support of PLWH. This paper presents the findings of a targeted analysis of interviews (N = 25) that discuss food incentives and explores two main themes that shed light on this practice: (1) Using food to engage versus to incentivize and (2) Food is more beneficial and more ethical. Providers perceived food more positively than other incentives, despite the goal remaining somewhat the same. Incentives, such as cash or gift cards, were considered ethically problematic and less helpful (and potentially harmful), whereas food addressed a basic need and felt more ethical.

Characteristics and impacts ofSystematic review nutritional programmes to address undernutrition of adults living with HIV in sub-Saharan Africa: a systematic review of evidence

OBJECTIVES

Although some studies have identified various challenges affecting nutritional programmes to effectively tackle undernutrition among people living with HIV, evidence about the characteristics and impacts of these programmes on weight-related nutritional outcomes varies based on country contexts, specific programme goals and the implementation processes. This systematic review sought to synthesise evidence on the characteristics and impact of nutritional programmes on weight-related nutritional outcomes of people living with HIV in sub-Saharan Africa.

DESIGN

Systematic review.

DATA SOURCES

We searched for primary studies published in the following databases: Web of Science, Medline, Scopus, ScienceDirect, ProQuest and Google Scholar, supplemented by checking reference lists of included papers.

ELIGIBILITY CRITERIA

Studies published from 2005 to 10 July 2020 and reporting on the weight-related nutritional outcomes of undernourished people enrolled in nutritional programmes in HIV care in sub-Saharan Africa were included.

DATA EXTRACTION AND SYNTHESIS

Data were extracted using a data extraction proforma. Weight-related nutritional outcomes of people living with HIV before and after enrolment in a nutritional programme were compared and narratively synthesised.

RESULTS

Sixteen studies assessing the impact of nutritional programmes in HIV care on weight-related nutritional outcomes were included. Of these, 13 examined nutritional programmes implemented in health facilities and the remaining three were delivered outside of health facilities. Nutritional recovery (defined differently in the studies) ranged from 13.1% to 67.9%. Overall programme failure rate, which included default after enrolment in a nutritional programme or non-response, ranged from 37.6% to 48.0%. More specifically, non-response to a nutritional programme ranged from 21.0% to 67.4% and default from the programme ranged from 19.0% to 70.6%. Key sociodemographic, clinical and nutritional characteristics that affect nutritional recovery, non-response and default were also identified.

CONCLUSIONS AND RECOMMENDATIONS

Nutritional programmes in HIV care have led to some improvements in weight-related nutritional outcomes among people living with HIV. However, the programmes were characterised by a high magnitude of default and non-response. To improve desired weight-related nutritional outcomes of people living with HIV, a holistic approach that addresses longer-term determinants of undernutrition is needed.

PROSPERO REGISTRATION NUMBER

CRD42020196827.

Impact of maternal nutrition in viral infections during pregnancy

Other than being a physiological process, pregnancy is a condition characterized by major adaptations of maternal endocrine and metabolic homeostasis that are necessary to accommodate the fetoplacental unit. Unfortunately, all these systemic, cellular, and molecular changes in maternal physiology also make the mother and the fetus more prone to adverse outcomes, including numerous alterations arising from viral infections. Common infections during pregnancy that have long been recognized as congenitally and perinatally transmissible to newborns include toxoplasmosis, rubella, cytomegalovirus, and herpes simplex viruses (originally coined as ToRCH infections). In addition, enterovirus, parvovirus B19, hepatitis virus, varicella-zoster virus, human immunodeficiency virus, Zika and Dengue virus, and, more recently, coronavirus infections including Middle Eastern respiratory syndrome (MERS) and severe acute respiratory syndrome (SARS) infections (especially the novel SARS-CoV-2 responsible for the ongoing COVID-19 pandemic), constitute relevant targets for current research on maternal-fetal interactions in viral infections during pregnancy. Appropriate maternal education from preconception to the early postnatal period is crucial to promote healthy pregnancies in general and to prevent and/or reduce the impact of viral infections in particular. Specifically, an adequate lifestyle based on proper nutrition plans and feeding interventions, whenever possible, might be crucial to reduce the risk of virus-related gestational diseases and accompanying complications in later life. Here we aim to provide an overview of the emerging literature addressing the impact of nutrition in the context of potentially harmful viral infections during pregnancy.

Methodologies for assessing the household food availability in the context of food (in)security: a systematic review

This article aims to identify the methods used to assess household food availability in studies on food and nutritional security and to discuss its methodological aspects. Systematic review elaborated according to the PRISMA method. We searched at PubMed; Scielo and Lilacs databases, and studies that used methods of assessing the availability of food at home were included. In the end, 19 papers composed the review. Food availability was predominantly assessed for a seven days period and from a single data measurement. Other variables were also observed in the studies, such as socio-demographic data and expenditure on food. Among the limitations to assess the food availability at home, we can highlight the difficulty in measuring the food distribution among family members and the lack of information on the variability of this availability. Such assessment can be improved by investigating the strengths and weaknesses of the instruments for greater detail and accuracy of the information. We recommend the development and validation of specific instruments capable of effectively measure the food availability at the household level.

Food Insecurity and Water Insecurity in Rural Zimbabwe: Development of Multidimensional Household Measures

Background: With millions of people experiencing malnutrition and inadequate water access, FI and WI remain topics of vital importance to global health. Existing unidimensional FI and WI metrics do not all capture similar multidimensional aspects, thus restricting our ability to assess and address food- and water-related issues. Methods: Using the Sanitation, Hygiene and Infant Nutrition Efficacy (SHINE) trial data, our study conceptualizes household FI (N = 3551) and WI (N = 3311) separately in a way that captures their key dimensions. We developed measures of FI and WI for rural Zimbabwean households based on multiple correspondence analysis (MCA) for categorical data. Results: Three FI dimensions were retained: 'poor food access', 'household shocks' and 'low food quality and availability', as were three WI dimensions: 'poor water access', 'poor water quality', and 'low water reliability'. Internal validity of the multidimensional models was assessed using confirmatory factor analysis (CFA) with test samples at baseline and 18 months. The dimension scores were associated with a group of exogenous variables (SES, HIV-status, season, depression, perceived health, food aid, water collection), additionally indicating predictive, convergent and discriminant validities. Conclusions: FI and WI dimensions are sufficiently distinct to be characterized via separate indicators. These indicators are critical for identifying specific problematic insecurity aspects and for finding new targets to improve health and nutrition interventions.

Validation of a six-item dietary calcium screening tool among HIV patients in China

OBJECTIVE

Individuals with HIV are at increased risk for osteoporosis. A healthy diet with adequate Ca is recommended to promote bone health. However, lengthy nutritional assessments pose barriers to routine screenings in clinical practice. This study aimed to examine the validity and reproducibility of a six-item dietary Ca screening tool among Chinese individuals with HIV.

DESIGN

We conducted a two time-point study in an outpatient setting. Volunteers self-administered the six-item tool upon enrolment and again at 1-month follow-up. At baseline, participants also completed a validated FFQ and surveys regarding demographic and clinical risk factors.

SETTING

Beijing, China; Shenzhen, Guangdong, China.

PARTICIPANTS

Upon enrolment, 127 individuals with HIV participated in the study, of whom 83 completed the follow-up screening.

RESULTS

Mean age of participants was 35·2 (sd 9·3) years, average BMI was 22·8 (sd 3·8) kg/m2 and 89 % were men. Among the participants, 54·7 % reported Ca intake less than 800 mg/d. The six-item tool demonstrated fair-to-moderate relative validity with a correlation of 0·39 and 75·7 % of subjects classified in same/adjacent quartiles as the reference, and moderate-to-good reproducibility with a correlation of 0·60 and 83·1 % of subjects classified in same/adjacent quartiles. Finally, receiver operating characteristic analyses yielded a sensitivity of 87·0 % and a specificity of 39·4 % with optimised cut-off level.

CONCLUSIONS

The six-item tool presented adequate validity and reproducibility to identify individuals with low Ca intake among the target population, providing a convenient instrument for categorising Ca intake in clinical practice, prompting referrals for further assessment, and raising awareness of dietary Ca in bone disease prevention.

Comparison of pregnancy incidence among African women in a randomized trial of intramuscular depot medroxyprogesterone acetate (DMPA-IM), a copper intrauterine device (IUDs) or a levonorgestrel (LNG) implant for contraception

OBJECTIVE

The objective was to address bias in contraception efficacy studies through a randomized study trial of intramuscular depot medroxyprogesterone acetate (DMPA-IM), a copper intrauterine device (IUDs) and a levonorgestrel (LNG) implant.

STUDY DESIGN

We analyzed data from the Evidence for Contraceptive Options and HIV Outcomes Trial, which assessed HIV incidence among 7829 women from 12 sites in eSwatini, Kenya, South Africa and Zambia seeking effective contraception and who consented to be randomized to DMPA-IM, copper IUD or LNG implant. We used Cox proportional hazards regression adjusted for condom use to compare pregnancy incidence during both perfect and typical (i.e., allowing temporary interruptions) use.

RESULTS

A total of 7710 women contributed to this analysis. Seventy pregnancies occurred during perfect and 85 during typical use. There was no statistically significant difference in perfect use pregnancy incidence among the methods: 0.61 per 100 woman-years for DMPA-IM [95% confidence interval (CI) 0.36-0.96], 1.06 for copper IUD (95% CI 0.72-1.50) and 0.63 for LNG implants (95% CI 0.39-0.96). Typical use pregnancy rates were also largely similar: 0.87 per 100 woman-years for DMPA-IM (95% CI 0.58-1.25), 1.11 for copper IUD (95% CI 0.77-1.54) and 0.63 for LNG implants (95% CI 0.39-0.96).

CONCLUSIONS

In this randomized trial of highly effective contraceptive methods among African women, both perfect and typical use resulted in low pregnancy rates. Our findings provide strong justification for improving access to a broader range of longer-acting contraceptive options including LNG implants and copper IUD for African women.

IMPLICATIONS STATEMENT

Data from this study support recommendations to providers, policy makers and patients that all of these methods provide safe and highly effective contraception for African women.

'When you take pills you must eat': Food (in)security and ART adherence among older people living with HIV

South Africa has increasing numbers of persons living with HIV on antiretroviral treatment (ART). There is evidence for a relationship between food, food security and HIV. Despite increasing rates of people older than 50 living with HIV coinciding with greater levels of co-morbidity, the existing research is largely limited to those aged 15-49 years. In this paper, we therefore explore how older people living with HIV (OPLWH) in two urban communities within South Africa negotiate and ensure they have sufficient access to food and how food insecurity may affect their retention in care and ART adherence. This study used exploratory qualitative semi-structured in-depth interviews with 23 OPLWH to collect data in isiXhosa. Data were analysed using thematic content analysis. Factors at the community, household and individual levels influence (a) access to sufficient and quality food, and (b) beliefs about ART and food based on (mis)understandings of messaging from health care providers. The results demonstrate the need to explore further and clarify the nutritional guidelines that OPLWH receive from providers to ensure this does not result in reduced adherence or retention in care. They also demonstrate the role that social welfare and family or kin obligations plays in ensuring the food security of OPLWH.

Place-based predictors of HIV viral suppression and durable suppression among heterosexuals in New York city

Scant research has explored place-based correlates of achieving and maintaining HIV viral load suppression among heterosexuals living with HIV. We conducted multilevel analyses to examine associations between United Hospital Fund (UHF)-level characteristics and individual-level viral suppression and durable viral suppression among individuals with newly diagnosed HIV in New York City (NYC) who have heterosexual HIV transmission risk. Individual-level independent and dependent variables came from NYC's HIV surveillance registry for individuals diagnosed with HIV in 2009-2013 (N = 3,159; 57% virally suppressed; 36% durably virally suppressed). UHF-level covariates included measures of food distress, demographic composition, neighborhood disadvantage and affluence, healthcare access, alcohol outlet density, residential vacancy, and police stop and frisk rates. We found that living in neighborhoods where a larger percent of residents were food distressed was associated with not maintaining viral suppression. If future research should confirm this is a causal association, community-level interventions targeting food distress may improve the health of people living with HIV and reduce the risk of forward transmission.

Infant and Young Child Feeding Decision Making and Practices: Malawian Mothers' and Fathers' Roles in the Context of HIV

BACKGROUND

Few studies in low- and middle-income countries have examined the roles of couples in infant and young child feeding decision making and practices, and there is no corresponding data in the context of human immunodeficiency virus (HIV). Research aim: This study aimed to explore mothers' and fathers' perceptions of their roles in feeding decision making and practices.

METHODS

The authors conducted in-depth interviews with 15 mothers and their male partners, recruited from the catchment areas of two urban and two rural government clinics in Lilongwe District, Malawi. The mothers were ≥ 18 years of age, were HIV positive, and had a child < 24 months of age. Twelve of the 15 fathers were also HIV positive. The interviews were analyzed using content analysis.

RESULTS

Mothers were responsible for child care, including breastfeeding and complementary feeding. Fathers provided monetary support for purchasing food and offered verbal support to encourage mothers to implement recommended feeding practices. Many fathers found it difficult to support adequate complementary feeding because of household food insecurity. Mothers were advised on child feeding during prevention of mother-to-child transmission clinic visits. No fathers in this study accompanied women to clinic appointments, so they were less well-informed about feeding than mothers. Fathers usually deferred to mothers in feeding decision making. One-third of mothers wanted fathers to be more involved in child feeding.

CONCLUSION

Malawian mothers' and fathers' roles in feeding decision making in the context of HIV align with local gender norms. Strategies are needed to improve fathers' knowledge of and involvement in child feeding, as desired by mothers.

Food Insecurity, HIV Disease Progression and Access to Care Among HIV-Infected Russians not on ART

Food insecurity (FI) has been associated with HIV disease progression among people on antiretroviral therapy (ART), presumably a consequence of poor medication adherence. We assessed whether there is a longitudinal association between FI and two primary outcomes reflecting on HIV disease progression (i.e., CD4 count and time to ART initiation) among people not on ART. Analyses used linear mixed effects and Cox models controlling for confounders. In this cohort (n = 310) FI was common (53%). Most (71.3%) reported past month heavy alcohol use and 37.1% reported past month injection drug use. Only 50 participants initiated ART during the study and mean time to ART was 128 days (SD 120). There were no significant differences in CD4 cell count between the groups with mild/moderate FI or severe FI versus those with no FI [adjusted mean difference, mild/moderate insecurity versus no FI -32.5 (95% CI -94.3, 29.3); severe versus no FI -45.5 (95% CI -124.1, 33.0); global p = 0.42]. We found no significant association between FI and longer time to ART initiation (p = 0.36). Food security is a desirable goal for overall health and shown beneficial for those on ART, however it does not appear to be associated with HIV disease progression among those with high prevalence of substance use and not yet on ART.

The association between food insecurity and depressive symptoms severity among pregnant women differs by social support category: a cross-sectional study

Common mental disorders, such as depression and anxiety, affect approximately 16% of pregnant women in low- and middle-income countries. Food insecurity (FI) has been shown to be associated with depressive symptoms. It has also been suggested that the association between FI and depressive symptoms is moderated by social support (SS); however, there is limited evidence of these associations among pregnant women living in low-income and middle-income countries. We studied the association between FI and depressive symptoms severity and assessed whether such an association varied among Ugandan pregnant women with low vs. high SS. Cross-sectional data were collected among 403 pregnant women in northern Uganda. SS was assessed using an eight-item version of the Duke-UNC functional SS scale. FI and depressive symptoms were assessed by, respectively, the individually focused FI scale and the Center for Epidemiologic Studies-Depression scale. Women were categorized into two SS groups, based on scoring < or ≥ to the median SS value. Multivariate linear regression models indicated an independent association between FI and depressive symptoms severity. The association between FI and depressive symptoms severity was moderated by SS i.e. was stronger among women in the low SS category (adjusted beta (95%CI): 0.91 (0.55; 1.27)) than for women belonging to the high SS group (0.53 (0.28; 0.78)) (adjusted p value for interaction = 0.026). There is need for longitudinal or interventional studies among pregnant women living in northern Uganda or similar contexts to examine the temporal sequence of the associations among food insecurity, depressive symptoms severity and social support. © 2016 John Wiley & Sons Ltd.

Food Insecurity in HIV-Hepatitis C Virus Co-infected Individuals in Canada: The Importance of Co-morbidities

While research has begun addressing food insecurity (FI) in HIV-positive populations, knowledge regarding FI among individuals living with HIV-hepatitis C virus (HCV) co-infection is limited. This exploratory study examines sociodemographic, socioeconomic, behavioral, and clinical factors associated with FI in a cohort of HIV-HCV co-infected individuals in Canada. We analyzed longitudinal data from the Food Security and HIV-HCV Co-infection Study of the Canadian Co-infection Cohort collected between November 2012-June 2014 at 15 health centres. FI was measured using the Household Food Security Survey Module and classified using Health Canada criteria. Generalized estimating equations were used to assess factors associated with FI. Among 525 participants, 59 % experienced FI at their first study visit (baseline). Protective factors associated with FI (p < 0.05) included: enrolment at a Quebec study site (aOR: 0.42, 95 % CI: 0.27, 0.67), employment (aOR: 0.55, 95 % CI: 0.35, 0.87), and average personal monthly income (aOR per $100 CAD increase: 0.98, 95 % CI: 0.97, 0.99). Risk factors for FI included: recent injection drug use (aOR: 1.98, 95 % CI: 1.33, 2.96), trading away food (aOR: 5.23, 95 % CI: 2.53, 10.81), and recent experiences of depressive symptoms (aOR: 2.11, 95 % CI: 1.48, 3.01). FI is common in this co-infected population. Engagement of co-infected individuals in substance use treatments, harm reduction programs, and mental health services may mitigate FI in this vulnerable subset of the HIV-positive population.

Association between Food Insecurity and Procurement Methods among People Living with HIV in a High Resource Setting

OBJECTIVE

People living with HIV in high-resource settings suffer severe levels of food insecurity; however, limited evidence exists regarding dietary intake and sub-components that characterize food insecurity (i.e. food quantity, quality, safety or procurement) in this population. We examined the prevalence and characteristics of food insecurity among people living with HIV across British Columbia, Canada.

DESIGN

This cross-sectional analysis was conducted within a national community-based research initiative.

METHODS

Food security was measured using the Health Canada Household Food Security Scale Module. Logistic regression was used to determine key independent predictors of food insecurity, controlling for potential confounders.

RESULTS

Of 262 participants, 192 (73%) reported food insecurity. Sub-components associated with food insecurity in bivariate analysis included: < RDI consumption of protein (p = 0.046); being sick from spoiled/unsafe food in the past six months (p = 0.010); and procurement of food using non-traditional methods (p <0.05). In multivariable analyses, factors significantly associated with food insecurity included: procurement of food using non-traditional methods [AOR = 11.11, 95% CI: 4.79-25.68, p = <0.001]; younger age [AOR = 0.92, 95% CI: 0.86-0.96, p = <0.001]; unstable housing [AOR = 4.46, 95% CI: 1.15-17.36, p = 0.031]; household gross annual income [AOR = 4.49, 95% CI: 1.74-11.60, p = 0.002]; and symptoms of depression [AOR = 2.73, 95% CI: 1.25-5.96, p = 0.012].

CONCLUSIONS

Food insecurity among people living with HIV in British Columbia is characterized by poor dietary quality and food procurement methods. Notably, participants who reported procuring in non-traditional manners were over 10 times more likely to be food insecure. These findings suggest a need for tailored food security and social support interventions in this setting.

Brief Report: Food Insufficiency Is Associated With Lack of Sustained Viral Suppression Among HIV-Infected Pregnant and Breastfeeding Ugandan Women

Supplemental Digital Content is Available in the Text.

Food insecurity is associated with poor virologic outcomes, but this has not been studied during pregnancy and breastfeeding. We assessed sustained viral suppression from 8 weeks on antiretroviral therapy to 48 weeks postpartum among 171 pregnant and breastfeeding Ugandan women; 74.9% experienced food insufficiency. In multivariable analysis, food insufficiency [adjusted odds ratio (aOR) 0.38, 95% confidence interval (CI): 0.16 to 0.91], higher pretreatment HIV-1 RNA (aOR 0.55 per 10-fold increase, 95% CI: 0.37 to 0.82), and lopinavir/ritonavir versus efavirenz (aOR 0.49, 95% CI: 0.24 to 0.96) were associated with lower odds of sustained viral suppression. Interventions to address food security may improve virologic outcomes among HIV-infected women.

The Association Between Food Insufficiency and HIV Treatment Outcomes in a Longitudinal Analysis of HIV-Infected Individuals in New York City

BACKGROUND

To date, there have been few longitudinal studies of food insecurity among people living with HIV (PLWH). Food insufficiency (FI) is one dimension of the food insecurity construct that refers to periods of time during which individuals have an inadequate amount of food intake because of limited resources. The aim of this analysis was to examine the relationship between FI and HIV treatment outcomes among HIV-infected individuals in New York City (NYC).

METHODS

Associations between FI ("consistent"--food insufficient on both of the last 2 assessments, "inconsistent"--food insufficient on 1 of the last 2 assessments, or neither) and clinical indicators of HIV disease progression (viral load > 200 copies per milliliter, CD4 count < 200 cells per cubic millimeter) were analyzed for NYC Ryan White Part A food and nutrition program clients who were matched to the NYC HIV Surveillance Registry and completed 2 FI assessments between November 2011 and June 2013.

RESULTS

Among 2,118 PLWH in food and nutrition programs, 61% experienced consistent FI and 25% experienced inconsistent FI. In multivariate analyses controlling for sociodemographic characteristics, consistent FI was independently associated with unsuppressed viral load (adjusted odds ratio = 1.6, confidence interval: 1.1 to 2.5). Consistent FI was only associated with low CD4 counts at the bivariate level.

CONCLUSIONS

Future studies should examine biological, structural, and psychosocial factors that may explain the relationship between FI and HIV treatment outcomes to inform intervention development. Persistent FI among food and nutrition program clients suggests that services are needed to address underlying needs for financial stability (eg, vocational counseling) for PLWH.

Food Insecurity is Longitudinally Associated with Depressive Symptoms Among Homeless and Marginally-Housed Individuals Living with HIV

Depression and food insecurity are prevalent among people with HIV (PLHIV) and contribute to poor HIV outcomes. Longitudinal data can help clarify the effect of food insecurity on depression among PLHIV in the United States. We assessed the longitudinal association of food insecurity with symptoms of depression using validated measures among participants living with HIV from the Research on Access to Care in the Homeless cohort in San Francisco. We followed 346 participants for a median of 28 months. Over half of participants (55.0 %) were food insecure and 35.8 % had symptoms of depression. In adjusted models, severe food insecurity in the previous period was associated with increased depressive symptom severity (b = 1.22; p < 0.001). The association remained statistically significant in models including participant fixed effects. Severe food insecurity was also longitudinally associated with a binary variable indicating probable depression. Efforts to increase access to and participation in food security safety net programs for PLHIV could improve depression.

Food insecurity is a barrier to prevention of mother-to-child HIV transmission services in Zimbabwe: a cross-sectional study

BACKGROUND

Food insecurity (FI) is the lack of physical, social, and economic access to sufficient food for dietary needs and food preferences. We examined the association between FI and women's uptake of services to prevent mother-to-child HIV transmission (MTCT) in Zimbabwe.

METHODS

We analyzed cross-sectional data collected in 2012 from women living in five of ten provinces. Eligible women were ≥16 years old, biological mothers of infants born 9-18 months before the interview, and were randomly selected using multi-stage cluster sampling. Women and infants were tested for HIV and interviewed about health service utilization during pregnancy, delivery, and post-partum. We assessed FI in the past four weeks using a subset of questions from the Household Food Insecurity Access Scale and classified women as living in food secure, moderately food insecure, or severely food insecure households.

RESULTS

The weighted population included 8,790 women. Completion of all key steps in the PMTCT cascade was reported by 49%, 45%, and 38% of women in food secure, moderately food insecure, and severely food insecure households, respectively (adjusted prevalence ratio (PRa) = 0.95, 95% confidence interval (CI): 0.90, 1.00 (moderate FI vs. food secure), PRa = 0.86, 95% CI: 0.79, 0.94 (severe FI vs. food secure)). Food insecurity was not associated with maternal or infant receipt of ART/ARV prophylaxis. However, in the unadjusted analysis, among HIV-exposed infants, 13.3% of those born to women who reported severe household food insecurity were HIV-infected compared to 8.2% of infants whose mothers reported food secure households (PR = 1.62, 95% CI: 1.04, 2.52). After adjustment for covariates, this association was attenuated (PRa = 1.42, 95% CI: 0.89, 2.26). There was no association between moderate food insecurity and MTCT in unadjusted or adjusted analyses (PRa = 0.68, 95% CI: 0.43, 1.08).

CONCLUSIONS

Among women with a recent birth, food insecurity is inversely associated with service utilization in the PMTCT cascade and severe household food insecurity may be positively associated with MTCT. These preliminary findings support the assessment of FI in antenatal care and integrated food and nutrition programs for pregnant women to improve maternal and child health.

Measuring food and nutrition security: tools and considerations for use among people living with HIV

As an increasing number of countries implement integrated food and nutrition security (FNS) and HIV programs, global stakeholders need clarity on how to best measure FNS at the individual and household level. This paper reviews prominent FNS measurement tools, and describes considerations for interpretation in the context of HIV. There exist a range of FNS measurement tools and many have been adapted for use in HIV-endemic settings. Considerations in selecting appropriate tools include sub-types (food sufficiency, dietary diversity and food safety); scope/level of application; and available resources. Tools need to reflect both the needs of PLHIV and affected households and FNS program objectives. Generalized food sufficiency and dietary diversity tools may provide adequate measures of FNS in PLHIV for programmatic applications. Food consumption measurement tools provide further data for clinical or research applications. Measurement of food safety is an important, but underdeveloped aspect of assessment, especially for PLHIV.

Adherence to HIV and TB care and treatment, the role of food security and nutrition

Food security and nutrition play an important role in HIV and TB care and treatment, including for improving treatment outcomes, adherence and uptake of HIV and TB care. This AIDS and behaviour supplement on "Adherence to HIV and TB care and treatment, the role of food security and nutrition" provides an overview of the current evidence and knowledge about the barriers to uptake and retention in HIV and TB treatment and care and on whether and how food and nutrition assistance can help overcome these barriers. It contains nine papers on three topic areas discussing: (a) adherence and food and nutrition security in context of HIV and TB, their definitions, measurement tools and the current situation; (b) food and nutrition insecurity as barriers to uptake and retention; and (c) food and nutrition assistance to increase uptake and retention in care and treatment. Future interventions in the areas of food security, nutrition and social protection for increasing access and adherence should be from an HIV sensitive lens, linking the continuum of care with health systems, food systems and the community, complementing existing platforms through partnerships and integrated services.

Relationship between hunger, adherence to antiretroviral therapy and plasma HIV RNA suppression among HIV-positive illicit drug users in a Canadian setting

Food insecurity may be a barrier to achieving optimal HIV treatment-related outcomes among illicit drug users. This study therefore, aimed to assess the impact of severe food insecurity, or hunger, on plasma HIV RNA suppression among illicit drug users receiving antiretroviral therapy (ART). A cross-sectional Multivariate logistic regression model was used to assess the potential relationship between hunger and plasma HIV RNA suppression. A sample of n = 406 adults was derived from a community-recruited open prospective cohort of HIV-positive illicit drug users, in Vancouver, British Columbia (BC), Canada. A total of 235 (63.7%) reported "being hungry and unable to afford enough food," and 241 (59.4%) had plasma HIV RNA < 50 copies/ml. In unadjusted analyses, self-reported hunger was associated with lower odds of plasma HIV RNA suppression (Odds Ratio = 0.59, 95% confidence interval [CI]: 0.39-0.90, p = 0.015). In multivariate analyses, this association was no longer significant after controlling for socio-demographic, behavioral, and clinical characteristics, including 95% adherence (Adjusted Odds Ratio [AOR] = 0.65, 95% CI: 0.37-1.10, p = 0.105). Multivariate models stratified by 95% adherence found that the direction and magnitude of this association was not significantly altered by the adherence level. Hunger was common among illicit drug users in this setting. Although, there was an association between hunger and lower likelihood of plasma HIV RNA suppression, this did not persist in adjusted analyses. Further research is warranted to understand the social-structural, policy, and physical factors shaping the HIV outcomes of illicit drug users.

Relationship between food insecurity and mortality among HIV-positive injection drug users receiving antiretroviral therapy in British Columbia, Canada

Objectives

Little is known about the potential impact of food insecurity on mortality among people living with HIV/AIDS. We examined the potential relationship between food insecurity and all-cause mortality among HIV-positive injection drug users (IDU) initiating antiretroviral therapy (ART) across British Columbia (BC).

Methods

Cross-sectional measurement of food security status was taken at participant ART initiation. Participants were prospectively followed from June 1998 to September 2011 within the fully subsidized ART program. Cox proportional hazard models were used to ascertain the association between food insecurity and mortality, controlling for potential confounders.

Results

Among 254 IDU, 181 (71.3%) were food insecure and 108 (42.5%) were hungry. After 13.3 years of median follow-up, 105 (41.3%) participants died. In multivariate analyses, food insecurity remained significantly associated with mortality (adjusted hazard ratio [AHR] = 1.95, 95% CI: 1.07–3.53), after adjusting for potential confounders.

Conclusions

HIV-positive IDU reporting food insecurity were almost twice as likely to die, compared to food secure IDU. Further research is required to understand how and why food insecurity is associated with excess mortality in this population. Public health organizations should evaluate the possible role of food supplementation and socio-structural supports for IDU within harm reduction and HIV treatment programs.