Table 2.
Demographic and Tumor Characteristics by Use of Breast-conserving Surgery
| AAPI | ||||
|---|---|---|---|---|
| White Americans % BCS | U.S.-born % BCS | Foreign-born % BCS | Unknown % BCS | |
| Overall | 59 | 56 | 43 | 45 |
| Demographic characteristics | ||||
| Age at diagnosis, y | ||||
| <40 | 55 | 54 | 44 | 46 |
| 40–49 | 60 | 57 | 44 | 48 |
| 50–59 | 63 | 56 | 43 | 47 |
| 60–69 | 60 | 55 | 43 | 42 |
| ≥70 | 57 | 55 | 39 | 40 |
| Marital status (P=.99) | ||||
| Married | 60 | 56 | 43 | 45 |
| Not married | 59 | 56 | 43 | 45 |
| Tumor registry* | ||||
| Hawaii | 60 | 56 | 46 | 48 |
| Los Angeles | 61 | 53 | 39 | 38 |
| SF/Oakland | 61 | 57 | 51 | 49 |
| San Jose/Monterey | 52 | 38 | 35 | 34 |
| Seattle/Puget Sound | 60 | 60 | 52 | 53 |
| Tumor characteristics | ||||
| Stage* | ||||
| I | 69 | 63 | 54 | 53 |
| II | 46 | 43 | 32 | 34 |
| Lymph nodes* | ||||
| Negative | 64 | 59 | 47 | 46 |
| Positive | 50 | 45 | 34 | 42 |
| Tumor size,* cm | ||||
| 1 or less | 70 | 65 | 52 | 54 |
| 1–2 | 64 | 58 | 51 | 49 |
| 2–3 | 49 | 49 | 36 | 35 |
| 3–4 | 33 | 26 | 21 | 25 |
| 4–5 | 22 | 21 | 11 | 16 |
| Grade* | ||||
| Well-differentiated | 71 | 67 | 56 | 57 |
| Moderately differentiated | 61 | 58 | 47 | 46 |
| Poor/undifferentiated | 54 | 48 | 37 | 40 |
| Histology (P=.72) | ||||
| Ductal | 61 | 56 | 43 | 45 |
| Lobular | 49 | 47 | 38 | 40 |
| Mixed duct/lob | 52 | 51 | 39 | 43 |
| Estrogen receptor status* | ||||
| Positive | 61 | 57 | 46 | 48 |
| Negative | 56 | 50 | 40 | 37 |
| Progesterone receptor status* | ||||
| Positive | 62 | 57 | 46 | 49 |
| Negative | 57 | 53 | 41 | 38 |
Pvalue<.0001 by Cochran-Mantel-Haenszel test for homogeneity across strata.
AAPI, Asian American/Pacific Islander; BCS, breast-conserving surgery.