Table 1 Patients and tumor characteristic according to BAT status
Parameter | BAT 18F-FDG uptake | P value | |
|---|---|---|---|
Positive (n=16) | Negative (n=141) | ||
Outdoor temperature: | |||
• Median (IQR) | 26 (12) | 34 (15) | 0.035b |
Age: | |||
• <50 years | 14 (87.5%) | 64 (45.4%) | 0.001a |
• ≥50 years | 2 (12.5%) | 77 (54.6%) | |
BMI: | 0.001a | ||
• < 25 | 10 (62.5%) | 32 (22.7%) | |
• ≥ 25 | 6 (37.5%) | 109 (77.3%) | |
Tumor size in cm | 0.680b | ||
• Median (IQR) | 2.5 (0.9) | 2.7 (1.8) | |
Primary SUVmax | 0.979b | ||
• Median (IQR) | 5.92 (11.96) | 8.2 (9.21) | |
ER status: | 0.668a | ||
• Positive | 11 (68.6%) | 104 (73.8%) | |
• Negative | 5 (31.2%) | 37 (26.2%) | |
PR status: | 0.783a | ||
• Positive | 10 (62.5%) | 93 (66%) | |
• Negative | 6 (37.5%) | 48 (34%) | |
HER2neu: | 0.356a | ||
• Positive | 5 (31.2%) | 61 (43.3%) | |
• Negative | 11 (68.8%) | 80 (56.7%) | |
Histology : | 0.937a | ||
• IDC | 14 (87.5%) | 124 (87.9%) | |
• ILC | 2 (12.5%) | 16 (11.3%) | |
• Others | 0 | 1 (0.7%) | |
Grade: | 0.946a | ||
• I | 2 (12.5%) | 14 (9.9%) | |
• II | 9 (56.2%) | 83 (58.9%) | |
• III | 5 (31.2%) | 44 (31.2%) | |
Molecular subtype: | 0.801a | ||
• Luminal A | 5 (31.2%) | 35 (24.8%) | |
• Luminal B | 7 (43.8%) | 80 (56.7%) | |
• Triple negative | 3 (18.8%) | 20 (14.2%) | |
• HER2+ | 1 (6.2%) | 6 (4.3%) | |
Ki-67: | 0.507a | ||
• <14% | 1 (6.2%) | 14 (9.9%) | |
• ≥14% | 8 (50%) | 85 (60.3%) | |
• Not assessed | 7 (43.8%) | 42 (29.8%) | |
N-stage: | 0.823a | ||
• N0 | 5 (31.2%) | 48 (34%) | |
• N1-3 | 11 (68.8%) | 93 (66%) | |
M-stage: | 0.862a | ||
• M0 | 13 (81.2%) | 117 (83%) | |
• M1 | 3 (18.8%) | 24 (17%) | |