. Author manuscript; available in PMC: 2011 Jul 6.

Published in final edited form as: J Invest Dermatol. 2010 Aug 26;131(1):67–73. doi: 10.1038/jid.2010.251

Table 3.

Eczema prevalence stratified by birthplace variables

Variable	Subgroup	Freq^*	%^**	95% Confidence Interval	p-value^†
Child’s mother born in US	No	912	9.08	(8.09, 10.07)	0.0004
Child’s mother born in US	Yes	8352	11.14	(10.76, 11.52)	0.0004

Child’s father born in US	No	739	9.27	(8.15, 10.39)	0.0297
Child’s father born in US	Yes	6508	10.66	(10.24, 11.07)	0.0297

Child born in US	No	233	6.80	(5.28, 8.32)	<.0001
Child born in US	Yes	9431	10.84	(10.49, 11.19)	<.0001

Raw frequency of surveyed subjects with eczema

^**

Weighted percent of subgroup population with eczema

^†

Rao-Scott chi-square test for equal proportions