EVALUATION OF FIVE FORMULAS FOR ESTIMATING BSA OF NIGERIAN CHILDREN:

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EVALUATION OF FIVE FORMULAS FOR ESTIMATING BSA OF NIGERIAN CHILDREN

EVALUATION OF FIVE FORMULAS FOR ESTIMATING BSA OF NIGERIAN CHILDREN

Body surface area is a term which is one of the most important indicators of physical functions in pediatric practice along with an essential indicator of child health. The doctors always require the body surface area value whenever they decide on starting an important medical treatment. Along with that, BSA is also a very potent indicator of the functioning of organs.

Instead of taking the weight to estimate the drug dosage in an individual, BSA is preferred. This is because BSA does not entirely depend upon the amount of adipose tissue which is present in the body and considers other factors such as fitness, which weight does not.

EVALUATION OF FIVE FORMULAS FOR ESTIMATING BSA OF NIGERIAN CHILDREN:

WHY THE FORMULAS ARE REQUIRED?

Many people question why exactly, one needs to use the mathematical equations for the calculation of BSA and especially when it comes to Nigeria. Although, a three-dimensional scanner is an accurate tool used in the clinics for the measurement of BSA. However, its regular use is nothing but impractical especially when it comes down to countries like Nigeria upon which, the scanners puts a load on the economy. This is why some certain formulas have been developed for convenience. But as countless formulas emerged, not every formula was worth depending upon. To find the best formula, a study was carried out and then the best ones out of the five formulas for calculating BSA was considered.

EVALUATION OF FIVE FORMULAS:
The five formulas commonly considered for calculating BSA are:

  • -Dubois-DuBois formula,
  • -Haycock formula,
  • -Gehan and George formula,
  • -Boyd,
  • -Mosteller.

DUBOIS-DUBOIS FORMULA:

To use this formula, a verification of the weight being in KG is required. Without the interconversion of weight from grams to kgs, the correct result cannot be obtained.
The following formula is used for the calculation of BSA as proposed by Dubois:
BSA = 0.007184 * Height0.725 * Weight0.425

HAYCOCK FORMULA:

This is also referred to as Haycock and Schwartz formula. It can be used in the following way.

BSA(m2)=Weight[kg]0.5378xHeight[cm]0.3964×0.024265

GEHAN AND GEORGE FORMULA:

The following formula proposed by Gehan and George can be used to calculate the BSA.

BSA[m2]=Weight[kg]0.51456xHeight[cm]0.42246×0.02350

BOYD FORMULA:

This is the most reliable formula. The formula is mentioned below.

BSA[m2]=Weight[kg]0.4838xHeight[cm]0.3×0.017827

MOSTELLER FORMULA:

This was proposed in 1987.

BSA=(HEIGHT[cm]xWeight[kg]/3600)1/2

COMPARISON OF ALL THE 5 FORMULAS:

The comparison was made by carrying out the study which has been listed below.

  • -2745 Nigerian children were considered and their BSA was calculated using each of the formulas which have been listed above.
  • -The 6th arithmetic means of all these formulas was also taken into consideration.
  • -For each of the method, the result was a linkage/agreement between mean-BSA and BSA for each of the above-mentioned formula.
  • -The result of each BSA value was compared through the use of Bland-Altman plots, RMS error, and bias.
  • -The results indicated that the BSA estimated from the use of Mosteller and Boyd’s formulas had perfect correlations and matched the mean-BSA. However, the deviation from the mean BSA was calculated to be the highest by the use of the Dubois formula. To check standard BSA Calculator visit calculators.tech
  • -From this, the conclusion was made that the methodology of calculation of BSA using Boyd formula was the most accurate and precise. However, the formula was time-consuming and rather complex due to which the health experts were not in favor of the formula. They required a rather simpler formula which will quickly calculate for them, their desired value.
  • In 1987, Mosteller calculated a very accurate method of calculating BSA which along with the accuracy, was a rather simpler one and could be easily referred to. Hence, this formula is the most common one for use. You can check all kinds of health calculators on calculators.tech

EVALUATION OF FIVE FORMULAS FOR ESTIMATING BSA OF NIGERIAN CHILDREN:

EVALUATION OF FIVE FORMULAS FOR ESTIMATING BSA OF NIGERIAN CHILDREN:

EVALUATION OF FIVE FORMULAS FOR ESTIMATING BSA OF NIGERIAN CHILDREN:

EVALUATION OF FIVE FORMULAS FOR ESTIMATING BSA OF NIGERIAN CHILDREN:
EVALUATION OF FIVE FORMULAS FOR ESTIMATING BSA OF NIGERIAN CHILDREN:

EVALUATION OF FIVE FORMULAS FOR ESTIMATING BSA OF NIGERIAN CHILDREN:
EVALUATION OF FIVE FORMULAS FOR ESTIMATING BSA OF NIGERIAN CHILDREN:
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EVALUATION OF FIVE FORMULAS FOR ESTIMATING BSA OF NIGERIAN CHILDREN:


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