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2.  Hidden diabetes in the UK: use of capture–recapture methods to estimate total prevalence of diabetes mellitus in an urban population 
An early requirement of the UK's Diabetes National Service Framework is enumeration of the total affected population. Existing estimates tend to be based on incomplete lists. In a study conducted over one year in North Liverpool, we compared crude prevalence rates for type 1 and type 2 diabetes with estimates obtained by capture–recapture (CR) analysis of multiple incomplete patient lists, to assess the extent of unascertained but diagnosed cases. Patient databases were constructed from six sources—a hospital diabetes centre; general practitioner registers; hospital admissions with a diagnosis of diabetes; a hospital diabetic retinal clinic; a research list of patients with diabetes admitted with stroke; and a local children's hospital. Log linear modelling was used to estimate missing cases, hence total prevalence.
The crude prevalence of diabetes was 1.5% (95% confidence interval [CI] 1.41, 1.52), compared with a CR-adjusted rate of 3.1% (CI 3.03, 3.19). Age-banded CR-adjusted prevalence was always higher in males than in females and the difference became more pronounced with increasing age. Among males, CR-adjusted prevalence rose from 0.4% at age 10–19 years to 18.3% at 80+ years; in females the corresponding figures were 0.4% and 9.3%.
The gap between crude and CR-estimated prevalence points to a rate of 'hidden diabetes' that has substantial implications for future diabetes care.
PMCID: PMC539535  PMID: 12835444
3.  Gitelman's syndrome 
PMCID: PMC1281532  PMID: 11387426
5.  Clinical and radiological features of pseudomyxoma peritonei. 
Pseudomyxoma peritonei is due to diffuse involvement of the peritoneal cavity with mucinous material. Four patients were found in two major general hospitals in Riyadh. All patients were male. Cardinal clinical features were abdominal distension, pain and weight loss. Computed tomography was helpful preoperatively. Laparoscopy or laparotomy were performed to arrive at a correct diagnosis.
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PMCID: PMC1292335  PMID: 2530349

Results 1-5 (5)