06 May 2021 : Clinical Research
Establishment and Verification of a Prediction Model for Symptomatic Radiation Pneumonitis in Patients with Esophageal Cancer Receiving Radiotherapy
Liu-Ting Yang1ABCDEFG, Lei Zhou1BC, Long Chen1ACDE, Shi-Xiong Liang1ADE, Jiang-Qiong Huang1DEF, Xiao-Dong Zhu12ACDEF*DOI: 10.12659/MSM.930515
Med Sci Monit 2021; 27:e930515
Table 2 Occurrence of radiation pneumonia in esophageal cancer.
| Primary cohort | Validation cohort | |||
|---|---|---|---|---|
| No. | (%) | No. | (%) | |
| Grade 0 | 36/131 | 27.5% | 18/43 | 41.9% |
| Grade 1 | 64/131 | 48.9% | 17/43 | 40.0% |
| Grade 2 | 18/131 | 13.7% | 6/43 | 14.0% |
| Grade 3 | 7/131 | 5.3% | 1/43 | 2.3% |
| Grade 4 | 6/131 | 4.6% | 1/43 | 2.3% |