2017, Number 1
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Rev Mex Patol Clin Med Lab 2017; 64 (1)
Prevalence of antinuclear antibodies in apparently healthy individuals. Lima, Peru
La Rosa FCB, Lozano FVS
Language: Spanish
References: 40
Page: 8-13
PDF size: 244.91 Kb.
ABSTRACT
Introduction: Antinuclear antibodies are serologically markers of autoimmunity, however this test is currently facing major challenges, and it seems the most important is the presence of these antibodies in healthy people.
Objective: To determine the prevalence, pattern and titer of antinuclear antibodies in apparently healthy subjects.
Material and methods: A prospective, analytical, cross-sectional study was performed on 150 blood donors for the determination of antinuclear antibodies using the indirect immunofluorescence technique in HEp-2 cells.
Results: The prevalence of antinuclear antibodies was 10.7% (95% CI 5.8-15.6%). The frequency increased with age and was higher in females than in males (12.3% versus 9%, p ‹ 0.001), prevalent patterns were 31.3% fine mottling and 25% dense fine mottling, and the most frequent titers were 1:80 (68.8%) and 1:160 (12.5%). The dense fine speckled pattern was found in low, medium and high titers.
Conclusions: The prevalence found was comparable to what was reported in other countries, it was higher in women and older persons. The titer is a relative value parameter, whereas the fluorescence pattern may have a more decisive impact.
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