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During recent years, there have been many attempts to define and measure the "complexity" of a computer program. Maurme Halstead has developed a theory that gives objective measures of software complexity. Various studms and experiments have shown that the theory's predictmns of the number of bugs in programs and of the time required to implement a program(More)
Three software complexity measures (Halstead's E, McCabe's u(G), and the length as measured by number of statements) were compared to programmer performance on two software maintenance tasks. In an experiment on understanding, length and u(G) correlated with the percent of statements correctly recalled. In an experiment on modification, most significant(More)
AIMS The aims of this study were to measure baseline use of Ottawa ankle rules (OAR), validate the OAR and, if appropriate, explore the impact of implementing the Rules on X-ray rates in a primary care, after hours medical centre setting. METHODS General practitioners (GPs) were surveyed to find their awareness of ankle injury guidelines. Data concerning(More)
AIMS To describe patterns of variation in referral among general practitioners, and to establish whether variability among practitioners within a geographic area is associated with high levels of utilisation in an area. METHOD Multilevel analysis of routinely collected primary care data. The four outcome measures were referral to physiotherapy, specialist(More)
AIM To describe the attitudes of general practitioners and specialist clinical teachers toward teaching evidence based medicine (EBM). PARTICIPANTS AND METHODS Questionnaire survey of 114 general practitioner and 162 specialist university teachers teaching EBM. RESULTS Two hundred and six (80%) teachers responded; 196 regularly consulted with patients,(More)
OBJECTIVES To explore the attitudes of clinicians working in New Zealand publicly funded hospitals towards prioritizing patients for elective surgery, and their reported use of clinical priority assessment criteria (CPAC). DESIGN A cross-sectional study using a postal questionnaire. The questionnaire drew on themes identified from an earlier qualitative(More)
The significance of antibiotics as prophylaxis is related to their role in defending against anticipated infection. The critical factor is not only the antibiotic itself, but also the time of administration, which must be within a "decisive period" of three to four hours after the incision. Any inhibitor or enhancer of bacterial growth in a surgical(More)