Table 2.
Age specific L, M, S, and z-scores values for BMI (kg/m2) from Cameroon study population using LMS method, with additional z-scores and percentiles: Boys.
| Age (years) | n | L | M | S | z-scores | 85th | 95th | 97th | |||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| −2 | −1.33 | −0.67 | 0.67 | 1.33 | 2 | 1.03 | 1.64 | 1.88 | |||||
| 8 | 106 | 2.31 | 15.8 | 0.13 | 10.5 | 12.6 | 14.3 | 17.1 | 18.3 | 19.4 | 17.8 | 18.9 | 19.2 |
| 9 | 125 | 1.71 | 15.8 | 0.14 | 10.8 | 12.6 | 14.3 | 17.3 | 18.6 | 19.9 | 18.0 | 19.2 | 19.7 |
| 10 | 130 | 2.08 | 16.4 | 0.14 | 10.5 | 12.8 | 14.7 | 17.9 | 19.3 | 20.5 | 18.7 | 19.9 | 20.3 |
| 11 | 163 | 1.25 | 17.3 | 0.12 | 12.7 | 14.3 | 15.8 | 18.8 | 20.2 | 21.6 | 19.5 | 20.8 | 21.3 |
| 12 | 194 | 1.26 | 18 | 0.13 | 13.0 | 14.7 | 16.4 | 19.6 | 21.1 | 22.6 | 20.4 | 21.8 | 22.3 |
| 13 | 224 | 2.43 | 18.3 | 0.16 | 9.14 | 13.2 | 16.0 | 20.2 | 21.9 | 23.4 | 21.1 | 22.6 | 23.1 |
| 14 | 203 | 1.98 | 18.9 | 0.12 | 13.1 | 15.3 | 17.1 | 20.4 | 21.9 | 23.2 | 21.2 | 22.5 | 23.0 |
| 15 | 140 | 0.49 | 19.5 | 0.12 | 14.9 | 16.4 | 17.9 | 21.1 | 22.9 | 24.7 | 22.1 | 23.7 | 24.3 |
n: sample size, L: skewness, M: mean, and S: coefficient of variation. −2, −1.33, −0.67, 0.67, 1.33, and 2 are z-scores used to calculate 2nd, 9th, 25th, 75th, 91st, and 98th BMI percentiles, respectively.