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Applied immuno-epidemiological research: an approach for integrating existing knowledge into the statistical analysis of multiple immune markers.
- Source :
-
BMC immunology [BMC Immunol] 2016 May 20; Vol. 17 (1), pp. 11. Date of Electronic Publication: 2016 May 20. - Publication Year :
- 2016
-
Abstract
- Background: Immunologists often measure several correlated immunological markers, such as concentrations of different cytokines produced by different immune cells and/or measured under different conditions, to draw insights from complex immunological mechanisms. Although there have been recent methodological efforts to improve the statistical analysis of immunological data, a framework is still needed for the simultaneous analysis of multiple, often correlated, immune markers. This framework would allow the immunologists' hypotheses about the underlying biological mechanisms to be integrated.<br />Results: We present an analytical approach for statistical analysis of correlated immune markers, such as those commonly collected in modern immuno-epidemiological studies. We demonstrate i) how to deal with interdependencies among multiple measurements of the same immune marker, ii) how to analyse association patterns among different markers, iii) how to aggregate different measures and/or markers to immunological summary scores, iv) how to model the inter-relationships among these scores, and v) how to use these scores in epidemiological association analyses. We illustrate the application of our approach to multiple cytokine measurements from 818 children enrolled in a large immuno-epidemiological study (SCAALA Salvador), which aimed to quantify the major immunological mechanisms underlying atopic diseases or asthma. We demonstrate how to aggregate systematically the information captured in multiple cytokine measurements to immunological summary scores aimed at reflecting the presumed underlying immunological mechanisms (Th1/Th2 balance and immune regulatory network). We show how these aggregated immune scores can be used as predictors in regression models with outcomes of immunological studies (e.g. specific IgE) and compare the results to those obtained by a traditional multivariate regression approach.<br />Conclusion: The proposed analytical approach may be especially useful to quantify complex immune responses in immuno-epidemiological studies, where investigators examine the relationship among epidemiological patterns, immune response, and disease outcomes.
- Subjects :
- Biomarkers metabolism
Biomedical Research
Brazil epidemiology
Child
Computer Simulation
Cytokines metabolism
Data Interpretation, Statistical
Humans
Immunoglobulin E blood
Integrated Advanced Information Management Systems
Outcome Assessment, Health Care methods
Predictive Value of Tests
Prognosis
Th1-Th2 Balance
Allergy and Immunology
Asthma diagnosis
Epidemiology
Hypersensitivity, Immediate diagnosis
Subjects
Details
- Language :
- English
- ISSN :
- 1471-2172
- Volume :
- 17
- Issue :
- 1
- Database :
- MEDLINE
- Journal :
- BMC immunology
- Publication Type :
- Academic Journal
- Accession number :
- 27206492
- Full Text :
- https://doi.org/10.1186/s12865-016-0149-9