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. Author manuscript; available in PMC: 2011 Sep 1.

Published in final edited form as: Int J Cancer. 2010 Sep 1;127(5):1115–1123. doi: 10.1002/ijc.25142

Table 1.

Baseline characteristics of the study population, N=819

	Native Hawaiian (N=202)		Caucasian (N=259)		Japanese American (N=358)
Characteristic	N (%)	Mean (SD)	N (%)	Mean (SD)	N (%)	Mean (SD)
Age (y)		54.5 (9.0)		56.9 (9.4)		58.7 (9.2)
BMI (kg/m²)		28.1 (6.5)		25.1 (5.6)		23.6 (4.1)
Menopausal status
Premenopausal	66 (33)		62 (24)		81 (23)
Postmenopausal	136 (67)		197 (76)		277 (77)
Case status
Case	54 (27)		122 (47)		180 (50)
Control	148 (73)		137 (53)		178 (50)
Percent density		29.1 (22.2)		33.6 (25.2)		37.0 (21.7)
Dense area (cm²)		33.5 (27.1)		36.3 (32.2)		29.0 (19.0)
Total breast area (cm²)		136.8 (64.9)		131.8 (71.0)		85.1 (32.6)

SD=standard deviation; BMI=body mass index