Distribution of Key Variables

The following table provides links to the distributions of key variables by year collected in the BCSC.

Table	Statistic
Table	Based on BCSC data as of 2011		Based on BCSC data as of 2009		Based on BCSC data as of 2008
Women	N	Percent	N	Percent	N	Percent
Breast cancers	N	Percent	N	Percent	N	Percent
Exams	N	Percent	N	Percent	N	Percent
Indication for exam	N	Percent	N	Percent	N	Percent
Symptoms (self-reported)	N	Percent	N	Percent	N	Percent
Time since last mammogram	N	Percent	N	Percent	N	Percent
Time since last clinical breast exam	N	Percent	N	Percent	N	Percent
Any mammogram performed	N	Percent	N	Percent	N	Percent
Digital mammograms	N	Percent	N	Percent	N	Percent
Ultrasounds	N	Percent	N	Percent	N	Percent
Breast density	N	Percent	N	Percent	N	Percent
Radiologists	N	Percent	N	Percent	N	Percent
Facilities where mammograms were taken	N	Percent	N	Percent	N	Percent
Facilities where mammograms were read	N	Percent	N	Percent	N	Percent
Age	N	Percent	N	Percent	N	Percent
Race	N	Percent	N	Percent	N	Percent
Body mass index	N	Percent	N	Percent	N	Percent
Highest level of education completed	N	Percent	N	Percent	N	Percent
Menopause	N	Percent	N	Percent	N	Percent
Current hormone therapy use	N	Percent	N	Percent	N	Percent
Previous breast cancer	N	Percent	N	Percent	N	Percent
Family history of breast cancer	N	Percent	N	Percent	N	Percent
Ever given birth	N	Percent	N	Percent	N	Percent
Age at first birth	N	Percent	N	Percent	N	Percent
Age at menarche	N	Percent	N	Percent	N	Percent
Covered by Medicare	N	Percent	N	Percent	N	Percent
Covered by Medicaid	N	Percent	N	Percent	N	Percent
Covered by private insurance	N	Percent	N	Percent	N	Percent
Covered by managed care insurance	N	Percent	N	Percent	N	Percent




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