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1.
J Nutr ; 147(6): 1183-1193, 2017 06.
Article in English | MEDLINE | ID: mdl-28404832

ABSTRACT

Background: Folate deficiency, vitamin B-12 deficiency, and anemia can have adverse effects on birth outcomes. Also, low vitamin B-12 reduces the formation of metabolically active folate.Objectives: We sought to establish the baseline prevalence of and factors associated with folate deficiency and insufficiency, vitamin B-12 deficiency, and anemia among women of childbearing age (WCBA) in Belize.Methods: In 2011, a national probability-based survey was completed among Belizean nonpregnant WCBA aged 15-49 y. Blood samples for determination of hemoglobin, folate (RBC and serum), and vitamin B-12 (plasma) and sociodemographic and health information were collected from 937 women. RBC and serum folate concentrations were measured by microbiologic assay (MBA). Folate status was defined based on both the WHO-recommended radioproteinbinding assay and the assay adjusted for the MBA.Results: The national prevalence estimates for folate deficiency in WCBA, based on serum and RBC folate concentrations by using the assay-matched cutoffs, were 11.0% (95% CI: 8.6%, 14.0%) and 35.1% (95% CI: 31.3%, 39.2%), respectively. By using the assay-matched compared with the WHO-recommended cutoffs, a substantially higher prevalence of folate deficiency was observed based on serum (6.9% absolute difference) and RBC folate (28.9% absolute difference) concentrations. The prevalence for RBC folate insufficiency was 48.9% (95% CI: 44.8%, 53.1%). Prevalence estimates for vitamin B-12 deficiency and marginal deficiency and anemia were 17.2% (95% CI: 14.2%, 20.6%), 33.2% (95% CI: 29.6%, 37.1%), and 22.7% (95% CI: 19.5%, 26.2%), respectively. The adjusted geometric means of the RBC folate concentration increased significantly (P-trend < 0.001) in WCBA who had normal vitamin B-12 status relative to WCBA who were vitamin B-12 deficient.Conclusions: In Belize, the prevalence of folate and vitamin B-12 deficiencies continues to be a public health concern among WCBA. Furthermore, low folate status co-occurred with low vitamin B-12 status, underlining the importance of providing adequate vitamin B-12 and folic acid intake through approaches such as mandatory food fortification.


Subject(s)
Folic Acid Deficiency/epidemiology , Folic Acid/blood , Nutritional Status , Vitamin B 12 Deficiency/epidemiology , Vitamin B 12/blood , Vitamin B Complex/blood , Adolescent , Adult , Anemia/blood , Anemia/epidemiology , Belize/epidemiology , Erythrocytes/metabolism , Female , Folic Acid Deficiency/blood , Folic Acid Deficiency/complications , Hemoglobins/metabolism , Humans , Middle Aged , Nutrition Surveys , Prevalence , Risk Factors , Vitamin B 12 Deficiency/blood , Vitamin B 12 Deficiency/complications , Young Adult
2.
Vaccine ; 33 Suppl 1: A174-81, 2015 May 07.
Article in English | MEDLINE | ID: mdl-25919158

ABSTRACT

OBJECTIVE: Among women in Belize, cervical cancer is both the leading cancer and the leading cause of cancer deaths. Both the quadrivalent and bivalent human papillomavirus (HPV) vaccines are licensed in Belize. The Ministry of Health of Belize convened a multidisciplinary team to estimate the costs, health benefits, and cost-effectiveness of adding an HPV vaccine to the national immunization schedule. METHODOLOGY: The CERVIVAC cost-effectiveness model (Version 1.123) was used to assess the lifetime health and economic outcomes of vaccinating one cohort of girls aged 10 years against HPV. The comparator was no HPV vaccination. The PAHO Revolving Fund negotiated price of US$ 13.79 per dose was used (for the quadrivalent vaccine) and national data sources were used to define demography, cervical cancer incidence and mortality, cervical cancer treatment costs, and vaccine delivery costs. Estimates from international agencies were used in scenario analysis. RESULTS: In a cohort of ∼4000 Belizean girls tracked over a lifetime, HPV vaccination is estimated to prevent 69 new cases of cervical cancer (undiscounted), and 51 cervical cancer deaths (undiscounted). Considering the potential cervical cancer treatment costs and lost wages avoided by households (societal perspective), the cost per disability-adjusted life year (DALY) averted was estimated to be US$ 429. This increased to US$ 1320 when cervical cancer treatment costs and lost wages were excluded from the analysis. Both estimates are far below the gross domestic product (GDP) per capita of Belize (US$ 4795). The lifetime health care costs saved by the women and their families represent more than 60% of the investment cost needed by the Government for the vaccine. CONCLUSION: Routine HPV vaccination would be highly cost-effective in Belize. If affordable, efforts should be made to expedite the introduction of this vaccine into the Belizean national immunization program.


Subject(s)
Human Papillomavirus Recombinant Vaccine Quadrivalent, Types 6, 11, 16, 18/economics , Human Papillomavirus Recombinant Vaccine Quadrivalent, Types 6, 11, 16, 18/immunology , Papillomavirus Infections/economics , Papillomavirus Infections/prevention & control , Uterine Cervical Neoplasms/economics , Uterine Cervical Neoplasms/prevention & control , Vaccination/economics , Adolescent , Adult , Aged , Aged, 80 and over , Belize/epidemiology , Child , Cost-Benefit Analysis , Female , Human Papillomavirus Recombinant Vaccine Quadrivalent, Types 6, 11, 16, 18/administration & dosage , Humans , Middle Aged , Models, Statistical , Papillomavirus Infections/complications , Papillomavirus Infections/epidemiology , Uterine Cervical Neoplasms/epidemiology , Uterine Cervical Neoplasms/etiology , Vaccination/methods , Young Adult
3.
AIDS Res Hum Retroviruses ; 27(10): 1055-9, 2011 Oct.
Article in English | MEDLINE | ID: mdl-21417948

ABSTRACT

Antiretroviral therapy has had a great impact on the prevention of mother-to-child transmission (MTCT) of HIV-1. However, development of drug resistance, which could be subsequently transmitted to the child, is a major concern. In Honduras and Belize the prevalence of drug resistance among HIV-1-infected children remains unknown. A total of 95 dried blood spot samples was obtained from HIV-1-infected, untreated children in Honduras and Belize born during 2001 to 2004, when preventive antiretroviral therapy was often suboptimal and consisted of monotherapy with nevirapine or zidovudine. Partial HIV-1 pol gene sequences were successfully obtained from 66 children (Honduras n=55; Belize n=11). Mutations associated with drug resistance were detected in 13% of the Honduran and 27% of the Belizean children. Most of the mutations detected in Honduras (43%) and all mutations detected in Belize were associated with resistance to nonnucleoside reverse transcriptase inhibitors, which was expected from the wide use of nevirapine to prevent MTCT during the study period. In addition, although several mothers reported that they had not received antiretroviral therapy, mutations associated with resistance to nucleoside reverse transcriptase inhibitors and protease inhibitors were found in Honduras. This suggests prior and unreported use of these drugs, or that these women had been infected with resistant virus. The present study demonstrates, for the first time, the presence of drug resistance-associated mutations in HIV-1-infected Honduran and Belizean children.


Subject(s)
Drug Resistance, Multiple, Viral , HIV Infections/drug therapy , HIV-1/drug effects , Mutation , RNA, Viral/blood , Anti-HIV Agents/pharmacology , Base Sequence , Belize/epidemiology , Cohort Studies , Female , HIV Infections/blood , HIV Infections/epidemiology , HIV Infections/transmission , HIV Infections/virology , HIV-1/classification , HIV-1/genetics , HIV-1/pathogenicity , Honduras/epidemiology , Humans , Infant , Infant, Newborn , Male , Molecular Sequence Data , Nevirapine/pharmacology , Phylogeny , Pregnancy , Prevalence , RNA, Viral/genetics , Reverse Transcriptase Inhibitors/pharmacology , Zidovudine/pharmacology , pol Gene Products, Human Immunodeficiency Virus/genetics
4.
Salud Publica Mex ; 53 Suppl 3: S312-22, 2011.
Article in Spanish | MEDLINE | ID: mdl-22344376

ABSTRACT

To present the main results of the regional situation diagnosis and intervention plan developed in 2010 as part of the planning activities of the Mesoamerican Health System by the Working Group on Maternal, Reproductive and Neonatal Health. A group of experts and representatives from countries in the region (Central America and nine southern Mexican states) conducted an exhaustive review of available data to construct a situational analysis and a review of effective practices for improving maternal, reproductive and neonatal health. Finally, the group proposed a regional action plan, defining regional goals and specific interventions. The situational diagnosis suggests that, although there has been progress in the last 10 years, maternal and neonatal mortality rates are still unnaceptably high in the region, with a substantial variability across countries. The group proposed as a regional goal the reduction of maternal and neonatal mortality in accordance with the Millenium Development Goals. The regional plan recommends specific maternal and neonatal health interventions emphasizing obstetric and neonatal emergency care, skilled birth attendance and family planning. The plan also includes a five year implementation strategy, along with training and evaluation strategies. The regional plan for maternal, neonatal and reproductive health has the potential to be successful, provided it is effectively implemented.


Subject(s)
Health Promotion/organization & administration , Infant Welfare , Maternal Welfare , Reproductive Health , Adolescent , Adult , Central America , Child , Child Health Services/organization & administration , Child Health Services/supply & distribution , Developing Countries , Family Planning Services , Female , Goals , Health Plan Implementation , Health Services Needs and Demand , Humans , Infant Mortality/trends , Infant, Newborn , International Cooperation , Maternal Health Services/organization & administration , Maternal Health Services/supply & distribution , Maternal Mortality/trends , Mexico , Middle Aged , Pregnancy , Regional Health Planning , Young Adult
5.
Salud pública Méx ; 53(supl.3): s312-s322, 2011. graf, tab
Article in Spanish | LILACS | ID: lil-625711

ABSTRACT

Presentar los principales resultados del diagnóstico situacional y plan regional de intervenciones en salud materna, reproductiva y neonatal elaborado como parte de los trabajos del Sistema Mesoamericano de Salud por el grupo de salud materna, reproductiva y neonatal (SMRN) en 2010. Se conformó un grupo de expertos y de representantes de los países de la región (que incluye Centroamérica y nueve estados del sur de México). Se hizo una revisión documental para conformar un diagnóstico situacional, una revisión de prácticas efectivas y se conformó un plan regional de acción. El diagnóstico situacional indica que las tasas de mortalidad materna y neonatal se mantienen inaceptablemente altas en la región. Se propuso como meta regional reducir la mortalidad materna y neonatal de acuerdo a los Objetivos de Desarrollo del Milenio. Se conformó un plan regional que identifica intervenciones específicas en SMRN con énfasis en la atención adecuada a las emergencias obstétricas y neonatales, atención calificada al nacimiento, y en planificación familiar. Se sugiere asimismo un plan de implementación a cinco años y una estrategia de evaluación y de capacitación. El plan regional en SMRN puede tener éxito siempre y cuando los aspectos de implementación sean atendidos debidamente.


To present the main results of the regional situation diagnosis and intervention plan developed in 2010 as part of the planning activities of the Mesoamerican Health System by the Working Group on Maternal, Reproductive and Neonatal Health. A group of experts and representatives from countries in the region (Central America and nine southern Mexican states) conducted an exhaustive review of available data to construct a situational analysis and a review of effective practices for improving maternal, reproductive and neonatal health. Finally, the group proposed a regional action plan, defining regional goals and specific interventions. The situational diagnosis suggests that, although there has been progress in the last 10 years, maternal and neonatal mortality rates are still unnaceptably high in the region, with a substantial variability across countries. The group proposed as a regional goal the reduction of maternal and neonatal mortality in accordance with the Millenium Development Goals. The regional plan recommends specific maternal and neonatal health interventions emphasizing obstetric and neonatal emergency care, skilled birth attendance and family planning. The plan also includes a five year implementation strategy, along with training and evaluation strategies. The regional plan for maternal, neonatal and reproductive health has the potential to be successful, provided it is effectively implemented.


Subject(s)
Adolescent , Adult , Child , Female , Humans , Infant, Newborn , Middle Aged , Pregnancy , Young Adult , Health Promotion/organization & administration , Infant Welfare , Maternal Welfare , Reproductive Health , Central America , Child Health Services/organization & administration , Child Health Services/supply & distribution , Developing Countries , Family Planning Services , Goals , Health Plan Implementation , Health Services Needs and Demand , Infant Mortality/trends , International Cooperation , Maternal Health Services/organization & administration , Maternal Health Services/supply & distribution , Maternal Mortality/trends , Mexico , Regional Health Planning
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