Prevalence of Overweight, Obesity, and Thinness in Cameroon Urban Children and Adolescents

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.