RESUMO
Publicado originalmente en American Journal of Public Health: Anderson RK, Calvo J, Serrano G, Payne GC. A study of the nutritional status and food habits of Otomi Indians in the Mezquital Valley of Mexico. Am J Public Health 1946;36:883-903.
Assuntos
Comportamento Alimentar , Indígenas Norte-Americanos , Estado Nutricional , História do Século XX , Humanos , MéxicoRESUMO
Se presentan los resultados de un estudio nutriológico en grupos de indígenas otomíes del Valle del Mezquital de México. La región es árida, estéril y económica y culturalmente una de las más deprimidas del país. Los habitantes comían muy pocos de los alimentos considerados comúnmente como esenciales para lograr una buena nutrición. Su consumo de carne, leche y sus derivados, frutas y verduras es extremadamente bajo. Sin embargo, por el consumo de tortillas, pulque y todas las plantas disponibles que se pueden considerar comestibles, se logra una dieta suficientemente adecuada.
Assuntos
História do Século XX , Humanos , Comportamento Alimentar , Indígenas Norte-Americanos , Estado Nutricional , MéxicoRESUMO
OBJECTIVE: To evaluate the performance of a point-of-care (POC) syphilis test when used in urban Bolivian maternity hospitals. METHODS: We tested 8892 pregnant women for syphilis using the Abbott Determine Syphilis TP rapid POC test and rapid plasma reagin (RPR) in the laboratory of four large urban maternity hospitals where national statistics reported a syphilis prevalence of at least 3%. Sera were stored and transferred to the national reference laboratory (INLASA) where RPR testing was repeated. When the reference laboratory staff observed a positive RPR result, a Treponema pallidum particle agglutination assay (TPPA) was performed to confirm these findings. We calculated test performance characteristics for the POC test and hospital RPR using RPR performed at the reference laboratory confirmed by TPPA as the reference standard. Participants received treatment during their initial visit based on the POC test results. RESULTS: The sensitivity, specificity, negative predictive value and positive predictive values of the POC syphilis test were: 91.8% (95% confidence intervals 88.4% to 94.5%), 98.5% (98.2% to 98.8%), 71.0% (66.6% to 75.2%), and 99.7% (99.5% to 99.8%), respectively. The RPR values were 75.7% (70.8% to 80.2%), 99.0% (98.9% to 99.3%), 76.9% (72.0% to 81.3%), and 99.0% (98.8% to 99.2%), respectively. CONCLUSION: The Abbott Determine Syphilis TP test proved to be more sensitive than routine RPR and had comparable specificity. POC testing may be a simple way to expand syphilis screening to clinics with no laboratory facilities, improve case detection, and facilitate treatment delivery.