Table 1.

Sociodemographic characteristics and body measurements of the participants at the baseline (2010), follow‐ups (2012, 2014), and the dropouts

	Variables	2010 (3‐5 y)		2012 (5‐7 y)		2014 (7‐9 y)		Dropouts (2012 or 2014)		P
		n	%	n	%	n	%	n	%
Sex	Male	594	51.4	405	51.7	230	52.3	364	61.3	.652 a
	Female	561	48.6	379	48.3	210	47.7	351	62.6
Family income	<1 MW	425	42.4	287	37.1	154	39.6	283	64.2	.126 b
	1‐2 MW	307	29.6	247	32.0	111	28.5	216	71.4
	2‐4 MW	152	14.6	129	16.7	68	17.5	104	68.4
	>4 MW	139	13.4	110	14.2	56	14.4	85	61.2
BMI	Underweight	166	14.4	74	9.9	43	10.8	111	66.9	.223 b
	Normal weight	645	55.8	445	59.2	229	57.5	414	64.2
	Overweight	153	13.3	124	16.5	74	18.6	111	72.6
	Obesity	191	16.5	108	14.4	52	13.1	121	63.4

		n	mean (SD)	n	mean (SD)	n	mean (SD)	n	mean (SD)
Age (y)		1555	4.3 (0.8)	783	6.3 (0.8)	440	8.4 (0.8)	715	4.3 (0.8)	.125 c

Abbreviation: MW, minimum wages.

^a P value from the Fisher chi‐square test comparing dropouts and children monitored in 2010.

^b P value from the Exact Fisher chi‐square test comparing dropouts and children monitored in 2010.

^c P value from the dependent t test comparing dropouts and children monitored in 2010.