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Table 3 Body mass index (BMI) classification of weights comparing the actual with the estimated weights

From: Estimation of weight in adults from height: a novel option for a quick bedside technique

BMI (kg/m2)

Classification

Actual weight (kg)

Estimated weight

Frequency

Percentage

Frequency

Percentage

< 18.5

Underweight

6

4.9

18.5–24.5

Normal

94

77.1

99

81.1

25.0–29.5

Overweight

22

18.0

23

18.9

30.0–34.5

Obesity class 1

35.0–39.5

Obesity class 2

≥ 40

Obesity class 3

Total

 

122

100.0

122

100.0

  1. Above shows a positive predictive value of 94.7% in eBW for normal weight and 95.5% positive predictive value for overweight while a negative predictive value of 100% for the obesity classes