Characteristics of breast cancer cases and controls from breast clinic of PGH, Manila, Philippines
| No. (%) of | |||
|---|---|---|---|
| Cases | Controls | ||
| Total (n) | 299 | 229 | |
| Ethnicity | |||
| Malay | 220 (74.0) | 163 (71.1) | |
| Malay-Other (e.g. Malay-Chinese) | 61 (20.4) | 43 (18.8) | |
| Spanish | 5 (1.7) | 3 (1.3) | |
| Chinese | 4 (1.3) | 3 (1.3) | |
| Spanish-Chinese | 2 (.7) | 1 (.4) | |
| Unknown | 7 (2.3) | 16 (7.0) | |
| Age distribution (yrs) | |||
| 20–34 | 33 (11.0) | 72 (31.4) | |
| 35–44 | 127 (42.5) | 86 (37.6) | |
| 45–54 | 118 (39.5) | 63 (27.5) | |
| 55–70 | 21 (7.0) | 8 (3.5) | |
| Tumor histology | |||
| Infiltrating ductal | 257 (86.0) | — | |
| Infiltrating lobular | 2 (.7) | ||
| Papillary | 7 (2.3) | ||
| Medullary | 2 (.7) | ||
| Other | 17 (5.7) | ||
| Unknown | 14 (4.7) | ||
| Stage | |||
| I | 8 (2.7) | — | |
| II | 94 (31.4) | ||
| III | 153 (51.2) | ||
| IV | 30 (10.0) | ||
| Unknown | 14 (4.7) | ||
| Estrogen receptora | |||
| Negative | 52 (40.3) | — | |
| Positive | 77 (59.7) | ||
a Percentages were calculated from cases for whom this information was available.