Table 2

Logistic regression analysis of association between variables and positive height gap

	Male				Female
	Univariable analysis		Multivariable analysis		Univariable analysis		Multivariable analysis
	OR (95% CI)	P value	OR (95% CI)	P value	OR (95% CI)	P value	OR (95% CI)	P value
Obesity (%)	1.22 (0.8 to 1.8)	0.33 3			0.89 (0.5 to 1.5)	0.658
Low body weight (%)	0.80 (0.4 to 1.6)	0.52 7			1.02 (0.7~1.6)	0.915
Education (%)	1.79 (1.1 to 3.1)	0.03 2	1.79 (1.1–3.1)	0.032	2.20 (1.2 to 3.9)	0.008	2.49 (1.4 to 4.5)	0.002
Low household income (%)	1.02 (0.5 to 2.2)	0.95 7			1.58 (0.6 to 4.0)	0.340
History of chronic disease (%)	1.04 (0.7 to 1.6)	0.85 1			0.60 (0.4 to 0.9)	0. 013	0.60 (0.4 to 0.9)	0.012
Difference in father’s height and mother’s height (≥2 SD)	0.88 (0.4 to 2.0)	0.75 8			1.74 (0.6 to 4.9)	0.291
Early menarche (≤10 years)					0.58 (0.3 to 1.1)	0.077