ATM and breast cancer: At baseline, statistically significant differences in BC were found between recipients and healthy donors in ATM, which was significantly lower in the recipient group; (median 31.8 kg [21.0;39.0]) vs. (35.0 kg [26.4;50.6]) (p = 0.044), and FO which was significantly higher in the recipient group; (median 0.9 L [− 0.1;1.5]) vs. (− 0.3 L [− 0.9;0.4]) (p = 0.005), respectively.