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Normal values in adult Zambians: IX. anti-streptolysin-o-titres
Medical Journal of Zambia
|April 1, 1978
Summary
Normal Anti-Streptolysin-O-Titres (ASOT) reference values are established for adults in Zambia. Results show 1:200 is the upper limit of normal, with higher figures indicating abnormality.
Area of Science:
- Medical Laboratory Science
- Immunology
- Public Health
Background:
- Anti-Streptolysin-O-Titres (ASOT) normal reference values are lacking for many African populations, including Zambia.
- Establishing local reference ranges is crucial for accurate diagnosis and management of streptococcal infections.
Purpose of the Study:
- To determine and establish normal adult Anti-Streptolysin-O-Titres (ASOT) reference values specific to Zambia.
- To provide a benchmark for interpreting ASOT results in the Zambian population.
Main Methods:
- Analysis of Anti-Streptolysin-O-Titres (ASOT) from a cohort of adult subjects in Zambia.
- Statistical evaluation of the ASOT distribution to identify normal ranges.
Main Results:
- The distribution of ASOT values is skewed towards lower titres, with 75% of results at or below 1:100.
- Including titres up to 1:200 encompasses 93% of all studied cases, suggesting this as a potential upper limit of normal.
Conclusions:
- The upper limit of normal for Anti-Streptolysin-O-Titres (ASOT) in adults in Zambia is proposed as 1:200.
- ASOT values exceeding 1:200 should be considered abnormal, aiding in the diagnosis of streptococcal diseases.
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