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Variations in biochemical values for common laboratory tests: a comparison among multi-ethnic Israeli women cohort

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Abstract

Background

Biochemical laboratory values are an essential tool in medical diagnosis, treatment, and follow-up; however, they are known to vary between populations. Establishment of ethnicity-adjusted reference values is recommended by health organizations.

Aim

To investigate the ethnicity element in biochemical lab values studying women of different ethnic groups.

Methods

Biochemical lab values (n = 27) of 503 adult Israeli women of three ethnicities (Jewish Ashkenazi, Jewish Sephardic, and Bedouin Arab) attending a single medical center were analyzed. Biochemical data were extracted from medical center records. Ethnic differences of laboratory biochemicals were studied using ANCOVA to analyze the center of the distribution as well as quartile regression analysis to analyze the upper and lower limits, both done with an adjustment for age.

Results

Significant ethnic differences were found in almost half (n = 12) of the biochemical laboratory tests. Ashkenazi Jews exhibited significantly higher mean values compared to Bedouins in most of the biochemical tests, including albumin, alkaline phosphatase, calcium, cholesterol, cholesterol LDL and HDL, cholesterol LDL calc., folic acid, globulin, and iron saturation, while the Bedouins exhibited the highest mean values in the creatinine and triglycerides. For most of these tests, Sephardic Jews exhibited biochemical mean levels in between the two other groups. Compared to Ashkenazi Jews, Sephardic Jews had a significant shift to lower values in cholesterol LDL.

Conclusions

Ethnic subpopulations have distinct distributions in biochemical laboratory test values, which should be taken into consideration in medical practice enabling precision medicine.

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Authors and Affiliations

  1. Department of Nutrition, Faculty of Health Sciences, Ariel University, 40700, Ariel, Israel

    Ruth Birk

  2. Faculty of Health Sciences, Jerusalem College of Technology, Jerusalem, Israel

    Eliyahu M. Heifetz

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  1. Ruth Birk
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Correspondence to Ruth Birk.

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All procedures performed in studies involving human participants were in accordance with the ethical standards of the institutional and/or national research committee and with the 1964 Helsinki Declaration and its later amendments or comparable ethical standards.

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The authors declare that they have no conflict of interest.

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This article does not contain any studies with animals performed by any of the authors.

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Birk, R., Heifetz, E.M. Variations in biochemical values for common laboratory tests: a comparison among multi-ethnic Israeli women cohort. Ir J Med Sci 188, 249–258 (2019). https://doi.org/10.1007/s11845-018-1825-y

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  • DOI: https://doi.org/10.1007/s11845-018-1825-y

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