Table 3. Odds ratio and 95% CI for RILI from multivariate analysis of 109 breast cancer patients.

Factors	P value	OR	95%CI
V5 (%)	0.471	1.051	0.919-1.202
V10(%)	0.531	1.060	0.883-1.273
V15(%)	0.965	1.006	0.784-1.289
V20(%)	0.001	2.618	1.447-4.737
V25(%)	0.995	1.004	0.318-3.172
The average dose of ipsilateral lung (Gy)	0.462	0.628	0.181-2.173
The number of cycles of chemotherapy	0.076	8.488	0.798-90.317