Table 7.

BMI-for-age z scores relative to the international growth references for Pakistani primary school children aged five to twelve years

Reference	BMI-for-age z scores
	Mean	95% CI	SD	P valuea
Boys (n = 977)
WHO 2007	-0.30	-0.41 to -0.20	1.60	< 0.001
USCDC 2000	-0.51	-0.61 to -0.42	2.00	< 0.001
Present study	0.00	-0.05 to 0.07	1.00	0.803
Girls (n = 883)
WHO 2007	-0.34	-0.43 to -0.25	1.40	< 0.001
USCDC 2000	-0.54	-0.63 to -0.44	1.44	< 0.001
Present study	0.00	-0.07 to 0.07	1.00	0.999
Total (n = 1860)
WHO 2007	-0.32	-0.39 to -0.25	1.51	< 0.001
USCDC 2000	-0.53	-0.59 to -0.46	1.48	< 0.001
Present study	0.00	-0.04 to 0.04	0.99	0.859

^a P values are for mean difference from zero for BMI-for-age z scores (obtained from the study data) relative to the WHO 2007 and USCDC 2000 references, and present study