Learn More
Cardiovascular disease is a major health problem for all Australians and is the leading cause of death in Aboriginal and Torres Strait Islanders. In 2010, more then 50% of all heart attack deaths were due to repeated events. Cardiac rehabilitation programs have been proven to be effective in preventing the recurrence of cardiac events and readmission to(More)
Twenty-one consecutive Black African patients with severe pure mitral stenosis were evaluated hemodynamically. It was found that advanced mitral stenosis presents itself in Kenya at a very young age (22.9 +/- 9.6 years, mean +/- S.D.), with all but three patients under thirty. Left ventricular angiography demonstrated significant impairment of left(More)
OBJECTIVE To classify automatically lung tumor-node-metastases (TNM) cancer stages from free-text pathology reports using symbolic rule-based classification. DESIGN By exploiting report substructure and the symbolic manipulation of systematized nomenclature of medicine-clinical terms (SNOMED CT) concepts in reports, statements in free text can be(More)
76 Kenyan Africans with classical or definite rheumatoid arthritis are described. Their age, sex ratio, and pattern of joint involvement closely resembled that seen in Europe and the USA and differed from that described in West Africa and rural South Africa. However, they showed a marked lack of systemic nonarticular complications, with relatively little(More)
A prospective survey of acute upper gastrointestinal hemorrhage in the major government hospital of Kenya was done using fibre-optic esophagogastroduodenoscopy. Of 66 African patients presenting with hematemesis and melena, a precise visual diagnosis was made in 89%. Duodenal ulcer was most common, accounting for 53%, but esophageal varices occurred in 20%.(More)
Emergency departments around Australia use a range of software to capture data on patients' reason for encounter, presenting problem and diagnosis. The data collected are mainly based on descriptions and codes of the International Classification of Diseases, 10th revision, Australian modification (ICD-10-AM), with each emergency department having a tailored(More)
Sera from 48 Kenyan Africans with rheumatoid arthritis, 43 patients with other diseases, and 98 blood donors were tested for the presence of rheumatoid factor by latex fixation tests using human European, human African, and rabbit immunoglobulin, and a sheep cell haemagglutination test. In the patients with rheumatoid arthritis the frequency of rheumatoid(More)
OBJECTIVE To develop a system for the automatic classification of Cancer Registry notifications data from free-text pathology reports. METHOD The underlying technology used for the extraction of cancer notification items is based on the symbolic rule-based classification methodology, whereby formal semantics are used to reason with the systematised(More)
In this paper, we study the maintenance of role-based access control (RBAC) models in database environments using transitive closure relations. In particular, the algorithms that express and remove redundancy from a component, a RBAC state, and from conflict constraints. The transitive closure relations on a RBAC state specify the reachability among user(More)
AbstrAct In this article we investigate how approximate query processing (AQP) can be used in medical multidatabase systems. We identify two areas where this estimation technique will be of use. First, approximate query processing can be used to preprocess medical record linking in the mul-tidatabase. Second, approximate answers can be given for aggregate(More)