Decisão terapêutica na hipertensão: inquérito às atitudes dos médicos de família na região de Lisboa e Vale do Tejo

Abstract

A hipertensão arterial (HTA) é um importante problema de saúde pela sua elevada prevalência e por constituir um importante factor de risco para a morbilidade e mortalidade cardiovasculares. 1 A nível mundial estima-se que, em 2008, cerca de um bilião de pessoas tivesse HTA, correspon

Portuguese Primary Care physicians response rate in surveys: A systematic review

“…We also analyzed the impact of different affiliations on response rate but we found no evidence supporting this influence (interaction test p<0.01). Twenty-one (21) studies were affiliated to healthcare provider, 15,[17][18][19][22][23][24][25][26]28,31,34,35,[37][38][39]41,42,44,46,48 fourteen to academic institutions, 21,27,29,30,32,33,36,40,43,45,47,[49][50][51] one related to regulatory institution 16 and other to the pharmaceutical industry. 20 Heterogeneity could not be explained by this subgroup analysis (I 2 =99% for academic institution affiliation and I 2 =98% for healthcare provider affiliation).…”

Portuguese food retailers – Exploring three classic theories of retail location

“…As formulated by Christaller (1933), Central Place Theory seeks to explain the size, distribution and number of urban centres, and the hierarchical relationship among them, in an economy where consumers are uniformly distributed, with identical buying power and fully informed, and where sellers behave in rational, perfectly competitive and profit maximizing manner in a free entry and equivalent costs market. Transport costs vary linearly with distance and the consumer, in order to minimize costs, acts rationally visiting the nearest centre offering the desired good or service (Brown 1993;Rodrigues, Vala and Monteiro 2002). Central Place Theory predicts that, given the increase in transport cost with increasing distance from the source of supply, i.e.…”

“…The centres at the top of the hierarchy have larger dimensions, namely in terms of population. Therefore, flows between centres occur only in vertical ascending direction, i.e., an urban centre of order n uses a higher order centre to search for a function it does not possess, belonging to the higher order centre trade area (Brown 1993;Mafra and Silva 2004;Rodrigues et al 2002;Scott 1970). Unlike Central Place Theory that assumes that consumers patronize the nearest centre that offers the required good or service, Spatial Interaction Theory is based on the assumption that consumers trade off the attractiveness of alternative shopping areas against the deterrent effect of distance (Brown 1993).…”