Comparisons | No. of studies | Molecular subtypes | No. of patients | E-cad expression | χ 2 (P value) | |
---|---|---|---|---|---|---|
Negative/low | Positive | |||||
1 | 4a [11, 24, 25] | Luminal A | 523 | 97 | 426 | 137.90 (0.000) |
Luminal B | 305 | 74 | 231 | |||
HER2-enriched | 208 | 57 | 151 | |||
TNBC | 325 | 180 | 145 | |||
2 | 7a [11, 17, 24, 25, 27, 28] | Luminal A/B | 2140 | 552 | 1588 | 86.34 (0.000) |
HER2-enriched | 545 | 145 | 400 | |||
TNBC | 744 | 324 | 420 | |||
3 | 12a [11, 12, 16, 17, 22,23,24,25,26,27,28] | Non-TNBC | 5254 | 1909 | 3345 | 120.46 (0.000) |
TNBC | 1273 | 676 | 597 |