Viraj B. Wijesuriya

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One hundred and fifty-five patients aged 75 years and over with gastrointestinal haemorrhage were studied and compared with a series of patients aged under 75 years. The mortality in patients with gastric ulcer or gastric carcinoma was not affected by age. However, the mortality in patients with duodenal ulcer was greater in the over-75s (8/31 deaths in the(More)
This study was carried out to find out how many patients aged 75 and over admitted to hospital as medical emergencies had features appropriate to care by physicians in geriatric medicine and to examine the extent of use of specialist facilities by these patients. The purpose was to examine criticisms of age-related admission policies which have focused on(More)
We present a new method for statistical verification of quantitative properties over a partially unknown system with actions, utilising a parameterised model (in this work, a parametric Markov decision process) and data collected from experiments performed on the underlying system. We obtain the confidence that the underlying system satisfies a given(More)
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