Table 2. Univariate and multivariate logistic regression analysis of factors associated with treatment‐related lymphopenia.
Abbreviations: 3D‐CRT, three‐dimensional conformal radiotherapy; BMI, body mass index; CI, confidence interval; ECOG PS, Eastern Cooperative Oncology Group performance status; IMRT, intensity modulated radiotherapy; MHD, mean heart dose; MLD, mean lung dose; OR, odd ratio; PTV, planning target volume.