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The prediction of single-frequency BIA variables from individual characteristics

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Abstract.

To define whether reference values for bioimpedance analysis (BIA) can be predicted in healthy individuals, individual characteristics and BIA variables (resistance index=height2/parallel resistance and reactance index= height2/parallel reactance) were evaluated in non-obese healthy individuals: 863 men and 769 women with an age range 20–70 years and body mass index (BMI) 19.0–29.9 kg/m2. The following predictive equations were obtained using multiple regression analysis:

Resistance index (cm2/ohm)

Males 21.06 + 0.087xage + 1.091xweight -1.801xBMI,

Females 20.35 + 0.037xage + 0.878xweight - 1.343xBMI

Reactance index (cm2/ohm)

Males 0.57 + 0.117xweight - 0.096xBMI

Females 1.42 + 0.078xweight - 0.075xBMI

In conclusion, reference BIA values seem to be reasonably predicted based on individual characteristics.

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Authors and Affiliations

  1. Department of Food Science, Federico II University, Via Università 100, I-80055, Portici, Naples, Italy

    L. Scalfi

  2. Nephrology Unit, Lauria Hospital, Naples, Italy

    V. Bellizzi

  3. Department of Food Science, Federico II University, Naples, Italy

    L. Scalfi

  4. Nephrology Unit, Polla Hospital, Naples, Italy

    V. Terracciano

  5. Department of Clinical and Experimental Medicine, Federico II University, Naples, Italy

    M. Marra

  6. Nephrology Unit, Solofra Hospital, Naples, Italy

    B. Di Iorio

Authors
  1. V. Bellizzi
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  2. L. Scalfi
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  3. V. Terracciano
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  4. M. Marra
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  5. B. Di Iorio
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Corresponding author

Correspondence to L. Scalfi.

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Bellizzi, V., Scalfi, L., Terracciano, V. et al. The prediction of single-frequency BIA variables from individual characteristics. Acta Diabetol 40 (Suppl 1), s233–s235 (2003). https://doi.org/10.1007/s00592-003-0073-3

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  • DOI: https://doi.org/10.1007/s00592-003-0073-3

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