Enumeration of non-communicable disease in rural South Africa by electronic data linkage and capture-recapture techniques

Gill, Geoffrey V., Scott, Bryonnie, Beeching, Nicholas J., Wilkinson, David and Ismail, Aziz A. (2001) Enumeration of non-communicable disease in rural South Africa by electronic data linkage and capture-recapture techniques. Tropical Medicine & International Health, 6 6: 435-441. doi:10.1046/j.1365-3156.2001.00722.x


Author Gill, Geoffrey V.
Scott, Bryonnie
Beeching, Nicholas J.
Wilkinson, David
Ismail, Aziz A.
Title Enumeration of non-communicable disease in rural South Africa by electronic data linkage and capture-recapture techniques
Journal name Tropical Medicine & International Health   Check publisher's open access policy
ISSN 1360-2276
1365-3156
Publication date 2001-06
Sub-type Article (original research)
DOI 10.1046/j.1365-3156.2001.00722.x
Volume 6
Issue 6
Start page 435
End page 441
Total pages 7
Place of publication Oxford, England
Publisher Blackwell Science
Language eng
Subject 1103 Clinical Sciences
1108 Medical Microbiology
1117 Public Health and Health Services
Abstract Non-communicable diseases (NCDs) are becoming increasingly common and important in developing countries, yet their enumeration is problematic. We have attempted to enumerate NCD patients in a rural district of KwazuluNatal, South Africa, using the techniques of electronic data linkage and capture-recapture (CR). We examined four major NCDs (hypertension, diabetes, asthma and epilepsy). Basic patient details were recorded onto EpiInfo software over a 6-week period, from the main hospital clinic at Hlabisa, as well as the 10 outlying peripheral health clinics. Using electronic data linkage of lists from the main hospital, the peripheral clinics, and repeat prescription cards, a district NCD register was produced of 2455 patients. The mean age was 51 ± 16 years (1 SD) and 76% were female. Of the total NCD patients, 62% had hypertension (age 57 ± 12 years, 82% female), 16% epilepsy (age 35 ± 17 years, 49% female), 13% asthma (age 45 ± 19 years, 60% female) and 12% diabetes (age 54 ± 13 years, 61% female). Estimated population crude prevalence rates for known NCD cases on the register were 7.4% for hypertension, epilepsy 0.2%, asthma 0.2% and diabetes 0.2%. We also attempted a CR analysis to assess completeness of data, by comparing overlap between patients attending peripheral clinics, and the central Hlabisa Hospital clinic. Matching by name, age, and diagnosis proved feasible, but there was little overlap, and CR calculations were invalid because of the relative independence of sources. We conclude that NCDs are common in rural Africa, and that a simple NCD district register is a potentially feasible and inexpensive option. Capture-recapture analysis is feasible, but requires suitable lists with acceptable overlap of patients.
Keyword Non-communicable Diseases
Diabetes
Hypertension
Asthma
Epilepsy
Developing Countries
Epidemiology
Capture-recapture
Impaired Glucose-tolerance
Diabetes Prevalence
Blood-pressure
Urban
Tanzania
Children
Niddm
Q-Index Code C1
Q-Index Status Provisional Code
Institutional Status Unknown

Document type: Journal Article
Sub-type: Article (original research)
Collection: School of Medicine Publications
 
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Created: Tue, 07 Sep 2010, 13:02:01 EST