Resumo O objetivo deste trabalho foi analisar os estudos que avaliaram o desempenho dos serviços de Atenção Primária à Saúde (APS) mediante uso do instrumento Primary Care Assessment Tool (PCATool) na perspectiva do usuário, em âmbito mundial. Estudo de revisão sistemática, seguindo o modelo Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA), a partir das seguintes bases: Lilacs, MedLine, SciElo, PubMed e Portal de Periódicos da Capes. Os descritores utilizados foram: Primary Care Assessment Tool e PCATool. Seguindo os critérios de inclusão e exclusão, analisaram-se 22 artigos, publicados entre os anos de 2007 a 2015 na literatura nacional e internacional. Os atributos mais bem avaliados foram competência cultural, acesso de primeiro contato subitem utilização e longitudinalidade. Enquanto os piores desempenhos encontrados foram acesso de primeiro contato, acesso de primeiro contato subitem acessibilidade, orientação familiar, orientação comunitária e integralidade. Grande parte dos serviços avaliados eram brasileiros, aplicados nas Unidades Básicas de Saúde e nas Estratégia de Saúde da Família; os serviços avaliados apresentaram necessidade de fortalecimento dos componentes da estrutura e processo para melhor desempenho da APS.

Abstract This study aims to analyze studies that evaluated the performance of Primary Health Care (PHC) services by using the Primary Care Assessment Tool (PCATool) under a worldwide user perspective. This is a systematic review that implemented the Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) model, from the following databases: Lilacs, Medline, SciELO, PubMed and the Coordination for the Improvement of Higher Education Personnel (CAPES) Journals Website, using descriptors Primary Care Assessment Tool and PCATool. Considering inclusion and exclusion criteria, we analyzed 22 research papers published from 2007 to 2015. The best-evaluated attributes were cultural competence, first contact use and longitudinality. On the other hand, the worst evaluated were first contact accessibility, family orientation, community orientation and comprehensiveness. Most of the health services evaluated were from Brazil, applied to “traditional” primary care clinic (UBS) and the Health Family Strategy (FHS). Services evaluated should strengthen structure and process components to achieve a better performance in PHC.

Resumo O objetivo deste trabalho foi analisar os estudos que avaliaram o desempenho dos serviços de Atenção Primária à Saúde (APS) mediante uso do instrumento Primary Care Assessment Tool (PCATool) na perspectiva do usuário, em âmbito mundial. Estudo de revisão sistemática, seguindo o modelo Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA), a partir das seguintes bases: Lilacs, MedLine, SciElo, PubMed e Portal de Periódicos da Capes. Os descritores utilizados foram: Primary Care Assessment Tool e PCATool. Seguindo os critérios de inclusão e exclusão, analisaram-se 22 artigos, publicados entre os anos de 2007 a 2015 na literatura nacional e internacional. Os atributos mais bem avaliados foram competência cultural, acesso de primeiro contato subitem utilização e longitudinalidade. Enquanto os piores desempenhos encontrados foram acesso de primeiro contato, acesso de primeiro contato subitem acessibilidade, orientação familiar, orientação comunitária e integralidade. Grande parte dos serviços avaliados eram brasileiros, aplicados nas Unidades Básicas de Saúde e nas Estratégia de Saúde da Família; os serviços avaliados apresentaram necessidade de fortalecimento dos componentes da estrutura e processo para melhor desempenho da APS.

Abstract This study aims to analyze studies that evaluated the performance of Primary Health Care (PHC) services by using the Primary Care Assessment Tool (PCATool) under a worldwide user perspective. This is a systematic review that implemented the Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) model, from the following databases: Lilacs, Medline, SciELO, PubMed and the Coordination for the Improvement of Higher Education Personnel (CAPES) Journals Website, using descriptors Primary Care Assessment Tool and PCATool. Considering inclusion and exclusion criteria, we analyzed 22 research papers published from 2007 to 2015. The best-evaluated attributes were cultural competence, first contact use and longitudinality. On the other hand, the worst evaluated were first contact accessibility, family orientation, community orientation and comprehensiveness. Most of the health services evaluated were from Brazil, applied to “traditional” primary care clinic (UBS) and the Health Family Strategy (FHS). Services evaluated should strengthen structure and process components to achieve a better performance in PHC.

The objectives of this experiment were to estimate the endogenous excretion of purine derivatives (PD), the intake and digestibility of nutrients, the urinary excretion of PD from the intake of total digestible nutrients (TDN) and digestible organic matter (DOM) in Nellore heifers. Eight heifers, 267±17 kg body weight (BW), were assigned to two 4 × 4 latin squares. The planned treatments were four dry matter intake (DMI) levels: 10, 14, 18 and 22 g/kg BW. The diet contained 70% corn silage and 30% concentrate. The endogenous losses were obtained by regression between excretion of PD (mmol/BW0.75) and DMI (g/BW0.75). When PD excretion (mmol/d) was related to the intake of DOM and TDN (kg/d), the following equations were obtained: ŶPD= 32.98 + 21.94*DOM and ŶPD= 32.47 + 20.40*TDN, respectively. The excretion of PD (mmol/d) was a function of DMI (kg/d): ŶPD = 0.605 + 0.014 x (r² = 0.46), and 0.60 mmol/BW0.75 was the endogenous fraction of PD. The endogenous losses of PD and nitrogen compounds obtained when the animals were fasted for 5 d, with free access to water, were 0.332 mmol/BW0.75 and 0.384 gN/BW0.75, respectively. The net protein requirement for maintenance was estimated at 2.4 g/BW0.75. Creatinine excretion is not affected by feed restriction.