. Author manuscript; available in PMC: 2014 Jun 12.

Published in final edited form as: Breast Cancer Res Treat. 2012 Nov 8;137(1):237–246. doi: 10.1007/s10549-012-2313-0

Table 3.

Association between time since last full-term pregnancy and HER2+ status, by country

Country	Subtype	n	OR (95% CI)
USA
	HR+/HER2−	164	1.00
	HER2+	59	1.29 (0.71–2.34)
Mexico
	HR+/HER2−	80	1.00
	HER2+	33	1.61 (0.67–3.82)
Spain
	HR+/HER2−	149	1.00
	HER2+	40	2.50 (1.20–5.21)
Pooled^a
	HR+/HER2−	393	1.00
	HER2+	132	1.68 (1.12–2.52)
Pooled^b
	HR+/HER2−	393	1.00
	HER2+	132	1.78 (1.08–2.93)

Study site included as a random effect in logistic regression model

Adjusted for age at diagnosis (≤ 45 or > 45 y); study site included as a random effect in logistic regression model