Child body mass index in four cities of East China compared to Western references

Figures & data

Table I.  Sample size of BMI by age.

Age group	Jinan	Xuzhou	Hefei	Shanghai 2000	Shanghai 1986
0–	3941	4025	4216	13 454	861
1–	474	1353	2433	4051	454
2–	372	1451	1593	4063	224
3–	949	1467	1673	3776	215
4–	1081	1217	1416	5371	215
5–	1223	877	1375	5224	212
6–	2669	1250	1165	3970
7–	1036	1409	992	3733
8–	1025	1020	1036	4390
9–	2263	1592	1098	5927
10–	1232	1311	1084	5962
11–	710	835	1218	6006
12–	871	1349	1635	3986
13–	1176	2337	1718	3952
14–	1204	2593	1629	4245
15–	2267	1650	2281	4666
16–	1430	1153	2130	4227
17–	1640	1614	1437	3634
18–19	1681	1404	934	5467
Total	27 244	30 007	31 063	96 104	2181

Table II.  Distribution of z-scores of BMI for the cities compared to expectation assuming normality – area between adjacent centiles (%).

	Expected	Jinan		Xuzhou		Hefei		Shanghai 2000		Shanghai 1986
Centile	(%)	Boys	Girls	Boys	Girls	Boys	Girls	Boys	Girls	Boys	Girls
3	3	2.6	2.8	2.7	3.1	2.8	3.1	2.6	2.8	2.7	2.8
5	2	1.8	2.0	1.6	1.7	1.7	1.8	1.8	1.8	0.5	1.7
10	5	4.6	4.4	4.9	4.7	4.7	4.7	5.0	4.7	5.1	3.4
25	15	16.5	14.8	15.9	14.8	15.8	14.6	16.1	15.4	15.5	15.7
50	25	26.0	27.2	26.0	26.3	25.8	25.6	25.7	25.8	27.1	26.8
75	25	23.1	24.4	23.6	25.1	24.4	25.8	23.5	24.8	25.9	26.5
90	15	14.0	13.9	14.3	14.2	14.1	14.8	14.7	14.6	15.0	13.3
95	5	5.7	4.9	5.3	5.0	5.4	4.3	5.5	4.8	3.8	5.2
97	2	2.6	2.3	2.6	1.7	2.1	1.9	2.3	2.0	1.2	1.9
100	3	3.1	3.5	3.1	3.4	3.2	3.3	3.0	3.3	3.2	2.8

Figure 1.  Median BMI in boys and girls by age. Jinan, Xuzhou, Shanghai 2000; Hefei, Shanghai 1986 (solid lines), US CDC 2000 and British 1990 (dashed lines). To help distinguish between the curves, the ordering of the legend matches the ordering of the curves at age 18 (age 6 for Shanghai 1986), so that for example Jinan is both the highest curve at age 18 and the top entry in the legend.

Figure 2.  The 91st centiles of BMI in boys and girls by age. Jinan, Xuzhou, Shanghai 2000; Hefei, Shanghai 1986 (solid lines), US CDC 2000 and British 1990 (dashed lines). To help distinguish between the curves, the ordering of the legend matches the ordering of the curves at age 18 (age 6 for Shanghai 1986).

Figure 3.  The 2nd centiles of BMI in boys and girls by age. Jinan, Xuzhou, Shanghai 2000; Hefei, Shanghai 1986 (solid lines), US CDC 2000 and British 1990 (dashed lines). To help distinguish between the curves, the ordering of the legend matches the ordering of the curves at age 18 (age 6 for Shanghai 1986).

Figure 4.  Rates of overweight and obesity in boys and girls by age based on the IOTF cut-offs (Cole et al. 2000) in Jinan, Xuzhou, Shanghai 2000 and Hefei, and the Health Survey for England 2001–2002 (Sproston and Primatesta 2003).

Figure 5.  Per capita annual purchases of cereals, vegetables, meat, eggs, fish, milk and poultry of urban households in China by year.

Figure 6.  Per capita annual purchases of meat and milk of urban households in China by income level by year.

Sproston K and Primatesta P. 2003. Health Survey for England 2002. Summary of Key Findings. London: The Stationery Office.

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