Table 2 Correlation between presentation with bone metastases and primary tumour characteristics
Bone metastases at presentation with metastatic disease | ||||
---|---|---|---|---|
Tumour characteristics | Yes | No | Univariate analysis | |
Histological grade (%) | 1 | 14 (70) | 6 (30) | χ2=7.90 |
2 | 71 (68) | 34 (32) | P=0.0193 | |
3 | 94 (52) | 87 (48) | ||
ER status (%) | +VE | 157 (69) | 71 (31) | χ2=19.755 |
−VE | 60 (45) | 73 (55) | P<0.0001 | |
Lymph node stage (%) | 1 | 29 (48) | 31 (52) | χ2=6.13 |
2 | 70 (68) | 33 (32) | P=0.0467 | |
3 | 40 (60) | 27 (40) | ||
Primary tumour size (mm) (%) | <15 | 23 (55) | 19 (45) | χ2=4.389 |
15–30 | 56 (37) | 96 (63) | P=0.1114 | |
>30 | 35 (40) | 52 (60) | ||
Patient age (%) | ⩽40 | 15 (56) | 12 (44) | χ2=2.889 |
41–50 | 46 (64) | 26 (36) | P=0.5766 | |
51–60 | 56 (56) | 44 (44) | ||
61–70 | 59 (60) | 40 (40) | ||
>70 | 91 (65) | 48 (35) | ||
Tumour type (%) | Ductal NST | 114 (56) | 89 (44) | Ductal NST vs tubular mixed χ2=5.03 P=0.025 |
Tubular mixed | 24 (77) | 7 (23) | ||
Lobular | 25 (69) | 11 (31) | ||
Mixed ductal and lobular | 10 (50) | 10 (50) | Ductal NST vs lobular χ2=2.22 P=0.136 | |
Pure tubular | 2 (67) | 1 (33) |