Table 4 Contingency tables featuring degrees of agreement between weight classifications based on the BMIs computed using the Quetelet index popularized by keys (BMIK) and modified formula proposed by Trefethen (BMIT), stratified by sex.
From: Assessment of a proposed BMI formula in predicting body fat percentage among Filipino young adults
BMIK | BMIT | ||||
|---|---|---|---|---|---|
Underweight | Normal | Overweight | Obese | Total | |
Males | |||||
Underweight | 1 | 0 | 0 | 0 | 1 |
Normal | 0 | 19 | 0 | 0 | 19 |
Overweight | 0 | 1 | 10 | 0 | 11 |
Obese | 0 | 0 | 2 | 41 | 43 |
Total | 1 | 20 | 12 | 41 | 74 |
Agreement: 96.0% (95% CI 91.5%, 100.0%); expected agreement: 41.6%; p < 0.001; Cohen’s κ: 0.9306 (95% CI 0.7658, 1.0000) | |||||
Females | |||||
Underweight | 4 | 9 | 0 | 0 | 13 |
Normal | 0 | 47 | 7 | 0 | 54 |
Overweight | 0 | 0 | 13 | 6 | 19 |
Obese | 0 | 0 | 0 | 30 | 30 |
Total | 4 | 56 | 20 | 36 | 116 |
Agreement: 81.0% (95% CI 73.9%, 88.2%); expected agreement: 33.7%; p < 0.001; Cohen’s κ: 0.7139 (95% CI 0.5969, 0.8309) | |||||
