Table 3. Role of weight status and demographic factors on parents’ perception of their child’s weight status (logistic regression analyses).

	2009 Model 1b			Model 2. Fully adjustedc			2013 Model 1b			Model 2. Fully adjustedc
	n	OR (95% CI)	P-value	n	OR (95% CI)#	P-value	n	OR (95% CI)	P-value	n	OR (95% CI)#	P-value
Weight status childa:	7431			6795			7799			7325
not overweight		ref			ref			ref			ref
overweight/obese		22.8* (17.5–29.6)	<0.001		27.8* (20.5–37.5)	<0.001		31.0* (24.5–39.2)	<0.001		40.0* (30.6–52.4)	<0.001
Child’s age:	7431			6795			7799			7325
8–12 years		ref			ref			ref			ref
2–7 years		0.19* (0.14–0.26)	<0.001		0.21* (0.15–0.29)	<0.001		0.22* (0.17–0.29)	<0.001		0.21* (0.16–0.28)	<0.001
Child’s gender:	7431			6795			7799			7325
female		ref			ref			ref			ref
male		0.61* (0.47–0.80)	<0.001		0.63* (0.47–0.84)	0.002		0.76* (0.60–0.96)	0.018		0.70* (0.54–0.90)	0.005
Child’s ethnicity:	7290			6795			7582			7325
Non-Caucasian		ref			ref			ref			ref
Caucasian		0.81 (0.53–1.22)	0.308		0.73 (0.43–1.25)	0.249		1.33 (0.88–2.01)	0.175		1.59 (0.97–2.60)	0.069
Education level of parents:	6799			6795			7327			7325
low		ref	<0.001		ref	0.011		ref	0.366		ref	0.609
middle		0.58* (0.42–0.79)			0.67* (0.48–0.93)			0.96 (0.73–1.27)			1.13 (0.84–1.53)
high		0.47* (0.32–0.68)			0.59* (0.40–0.88)			0.79 (0.57–1.11)			0.98 (0.69–1.39)

The dependent variable parental perception of their child’s weight status, 0 = not heavy, 1 = heavy or extremely heavy.

OR, odds ratio; CI, confidence interval

^a The child’s BMI was calculated using the child’s weight and height as reported by the parents

^b In model 1: the effect of each demographic variable was corrected for the child’s weight status based on BMI

^c Model 2 was adjusted for the child’s weight status based on BMI and all demographic variables simultaneously

*p<0.05.