Table 1.

Sociodemographic and clinical characteristics at baseline (n = 774)

Sociodemographic characteristics
Age in years, mean (SD)	51.5 (12.5)
Ethnicity, race
Hispanic, any race	58 (8%)
Non-Hispanic, White	505 (65%)
Non-Hispanic, Black	75 (10%)
Non-Hispanic, Asian	57 (7%)
Unknown/other	79 (10%)
Clinical characteristics
Surgical procedure and tumor laterality
Lumpectomy: Left	153 (20%)
Lumpectomy: Right	76 (10%)
Mastectomy: Left	344 (44%)
Mastectomy: Right	201 (26%)
Zubrod Performance Status
Normal activity (0)	520 (67%)
Symptomatic and ambulatory; cares for self (1)	249 (32%)
Ambulatory >50% of time; occasional assistance (2)	5 (1%)
Cardiovascular risk factors*
0–2	632 (82%)
>2	142 (18%)

Entries in the table represent the number of participants (percentage) unless otherwise specified.

^*Count of the following: history of coronary artery disease or myocardial infarction, atrial fibrillation/flutter, diabetes, hypertension, renal failure, hyperlipidemia, heart failure, cardiomyopathy, smoking (current/former), prior contralateral left breast or chest wall radiation, prior anthracycline therapy, or prior trastuzumab therapy.