Table 5.

Effect Modification of the Association between Hypertension, Pre-hypertension^* and Ethnicity by Body mass Index, Pediatric Task Force Data

	Boys					Girls
	Normal Weight †		Overweight †			Normal Weight †		Overweight †
Ethnic Group	OR∥ (95% CI)	p-value‡	OR∥ (95% CI)	p-value‡	p, interaction§	OR∥ (95% CI)	p-value‡	OR∥ (95% CI)	p-value‡	p, interaction§
Hypertension
Caucasian	1.0 (ref)		1.0 (ref)			1.0 (ref)		1.0 (ref)
African-American	1.14 (1.03–1.27)	0.01	0.90 (0.78–1.05)	0.20	0.01	1.08 (0.97–1.20)	0.14	0.97 (0.85–1.11)	0.69	0.22
Hispanic	1.18 (1.00–1.39)	0.05	1.23 (1.02–1.48)	0.03	0.74	0.84 (0.70–1.01)	0.06	0.96 (0.79–1.16)	0.67	0.31
Pre-hypertension
Caucasian	1.0 (ref)		1.0 (ref)			1.0 (ref)		1.0 (ref)
African-American	1.28 (1.17–1.39)	<0.001	1.02 (0.83–1.25)	0.83	0.05	1.32 (1.17–1.49)	<0.001	0.99 (0.82–1.21)	0.93	0.01
Hispanic	1.06 (0.92–1.23)	0.41	0.83 (0.64–1.08)	0.17	0.11	0.82 (0.66–1.02)	0.08	0.73 (0.55–0.99)	0.04	0.57

^*Hypertension = ≥ the 95th percentile for either systolic or diastolic BP based on quantile regression methods; pre-hypertension = either systolic or diastolic pre-hypertension and not hypertensive

^†Normal weight = < 85th percentile; overweight = ≥ 85th percentile

^‡Based on PROC GENMOD of SAS

^§P-value for interaction of ethnicity x Normal weight/overweight

^∥Odds ratio for hypertension (pre-hypertension) for overweight vs. normal weight children