Table 1. Demographics, tumor characteristics, and treatments of 292 breast cancer patients of Chinese ethnicity, 72 of Malay ethnicity, and 21 of Indian ethnicity.
| Ethnicity | ||||
|---|---|---|---|---|
| Chinese | Malay | Indian | ||
| 292 (76%) | 71 (18%) | 21 (5%) | P-value | |
| Median age at diagnosis (IQR) | 52 (45–57) | 49 (43–54) | 46 (42–55) | 0.016 |
| Median age at time of survey (IQR) | 59 (52–65) | 53 (48–57) | 49 (47–63) | <0.001 |
| Median time since diagnosis (IQR) | 5 (3–9) | 4 (2–8) | 4 (3–6) | 0.004 |
| Recurrencea | ||||
| Yes | 24 (8) | 6 (8) | 0 (0) | 0.589 |
| No | 268 (92) | 65 (92) | 21 (100) | |
| Tumor stage | ||||
| In situ | 45 (15) | 6 (8) | 4 (19) | 0.002 |
| I/II | 220 (75) | 51 (72) | 10 (48) | |
| III/IV | 24 (8) | 14 (20) | 6 (29) | |
| Unknown | 3 (1) | 0 (0) | 1 (5) | |
| Tumor grade | ||||
| Well differentiated | 45 (15) | 9 (13) | 1 (5) | 0.402 |
| Moderately differentiated | 114 (39) | 30 (42) | 7 (33) | |
| Poorly differentiated | 118 (40) | 29 (41) | 13 (62) | |
| Unknown | 15 (5) | 3 (4) | 0 (0) | |
| Estrogen receptor status | ||||
| Positive | 186 (64) | 50 (70) | 12 (57) | 0.796 |
| Negative | 70 (24) | 17 (24) | 6 (29) | |
| Unknown | 36 (12) | 4 (6) | 3 (14) | |
| Type of surgeryb | ||||
| Breast conserving surgery | 120 (41) | 22 (31) | 9 (43) | 0.574 |
| Mastectomy | 147 (50) | 43 (61) | 11 (52) | |
| Mastectomy with reconstruction | 25 (9) | 6 (8) | 1 (5) | |
| Axillary Clearanceb | ||||
| Axillary dissection | 170 (58) | 51 (72) | 13 (62) | 0.101 |
| Sentinel node biopsy only/none | 122 (42) | 20 (28) | 7 (33) | |
| Unknown | 0 (0) | 0 (0) | 1 (5) | |
| Radiotherapy | ||||
| Yes | 174 (60) | 38 (54) | 16 (76) | 0.192 |
| No | 106 (36) | 28 (39) | 4 (19) | |
| Unknown | 12 (4) | 5 (7) | 1 (5) | |
| (Neo) adjuvant chemotherapy | ||||
| Yes | 136 (47) | 30 (42) | 11 (52) | 0.669 |
| No | 146 (50) | 38 (54) | 9 (43) | |
| Unknown | 10 (3) | 3 (4) | 1 (5) | |
| Hormone therapy | ||||
| Yes | 196 (67) | 55 (77) | 13 (62) | 0.099 |
| No | 88 (30) | 12 (17) | 6 (29) | |
| Unknown | 8 (3) | 4 (6) | 2 (10) | |
‘Unknown’ were excluded from statistical testing.
a Fisher’s Exact test was used.
b Not based on treatment at diagnosis but on final treatment received any time before the survey.
IQR: Interquartile range.