Table 2.

Polish 2012 height-for-age (in cm), weight-for-age (in kg), and BMI-for-age (in kg/m²) references for preschool boys

Age (years)	L	S	−2 SD	−1 SD	+1 SD	+2 SD	P3	P10	P25	P50: M (median)	P75	P90	P97
Height (cm)
3.0	1	0.038	90.1	93.8	101.3	105.0	90.5	92.7	95.0	97.5	100.0	102.3	104.5
3.5	1	0.039	93.5	97.4	105.2	109.2	93.9	96.3	98.7	101.3	104.0	106.3	108.7
4.0	1	0.039	96.7	100.8	109.1	113.2	97.2	99.7	102.2	104.9	107.7	110.2	112.7
4.5	1	0.040	99.8	104.1	112.7	117.0	100.3	102.9	105.5	108.4	111.3	113.9	116.5
5.0	1	0.041	102.7	107.3	116.4	120.9	103.3	106.0	108.8	111.8	114.9	117.6	120.4
5.5	1	0.041	105.6	110.4	119.9	124.7	106.2	109.0	111.9	115.2	118.4	121.3	124.1
6.0	1	0.042	108.4	113.4	123.4	128.4	109.0	112.0	115.0	118.4	121.8	124.8	127.8
Weight (kg)
3.0	−1.289	0.131	11.9	13.2	17.2	20.6	12.1	12.8	13.7	14.9	16.4	18.0	20.1
3.5	−1.350	0.131	12.8	14.2	18.5	22.1	12.9	13.8	14.7	16.0	17.6	19.4	21.6
4.0	−1.382	0.130	13.7	15.2	19.8	23.7	13.9	14.7	15.8	17.1	18.8	20.7	23.1
4.5	−1.379	0.134	14.4	16.0	21.0	25.3	14.6	15.5	16.6	18.1	20.0	22.1	24.7
5.0	−1.369	0.142	15.0	16.8	22.4	27.5	15.2	16.3	17.5	19.1	21.2	23.6	26.7
5.5	−1.384	0.152	15.7	17.7	24.0	30.1	15.9	17.1	18.4	20.3	22.6	25.4	29.2
6.0	−1.416	0.163	16.6	18.7	26.0	33.5	16.8	18.0	19.5	21.6	24.4	27.7	32.3
BMI (kg/m2)
3.0	−2.743	0.081	13.7	14.6	17.1	19.4	13.8	14.3	14.9	15.7	16.6	17.7	19.0
3.5	−2.696	0.085	13.6	14.4	17.2	19.6	13.7	14.2	14.8	15.6	16.6	17.8	19.2
4.0	−2.648	0.090	13.4	14.4	17.2	19.8	13.5	14.1	14.7	15.6	16.6	17.8	19.4
4.5	−2.601	0.094	13.3	14.3	17.3	20.1	13.4	14.0	14.6	15.5	16.6	18.0	19.7
5.0	−2.554	0.099	13.2	14.2	17.4	20.5	13.3	13.9	14.6	15.5	16.7	18.1	20.0
5.5	−2.507	0.104	13.1	14.2	17.5	20.9	13.3	13.9	14.6	15.5	16.8	18.3	20.4
6.0	−2.460	0.109	13.1	14.2	17.7	21.4	13.2	13.8	14.6	15.6	16.9	18.5	20.8