Establishment and Verification of a Prediction Model for Symptomatic Radiation Pneumonitis in Patients with Esophageal Cancer Receiving Radiotherapy

06 May 2021 : Clinical Research

Liu-Ting Yang^1ABCDEFG, Lei Zhou^1BC, Long Chen^1ACDE, Shi-Xiong Liang^1ADE, Jiang-Qiong Huang^1DEF, Xiao-Dong Zhu^12ACDEF*

DOI: 10.12659/MSM.930515

Med Sci Monit 2021; 27:e930515

Background Material and Methods Results Discussion Conclusions References

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Table 1 Baseline characteristics of all patients.

Characteristics	Primary cohortNo. (%)	Validation cohortNo. (%)
Sex
Male/Female	120/11	39/4
Age (years)
<57/≥57	65/66	20/23
Smoking
Yes/no	92/39	22/21
Smoking index
<400/≥400	54/77	29/14
Drinking
Yes/no	99/32	31/12
Location
Cervical/upper/middle/lower/multifocal	15/39/56/16/5	4/12/16/8/3
T stage
T1–T2/T3–T4	14/117	4/39
N stage
N0–N1/N2–N3	81/50	21/22
M stage
M0/M1	119/12	35/8
Clinical stages
I–II/III–IV	34/97	6/37
Chemotherapy
Platinum-fluorouracil regimen/taxus-platinum regimen/other/none	57/55/1/18	19/19/0/5
Chemotherapy cycle
<4/≥4	99/32	28/15
Pulmonary bulla
0/1/2/3	110/15/4/2	39/3/1/0

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