Table 2.

Univariate and multivariate logistic regression for ≥Grade 2 chest wall pain

Factor	p-value	Odds ratio	95% confidence interval
Univariate analysis
Minimum tumour-to-chest wall distance (mm)	0.058	0.842	0.704–1.006
Chest wall Dmean	0.001	2.104	1.335–3.315
Chest wall Dmax1 cm3	0.019	1.103	1.016–1.197
Chest wall V50	0.003	1.063	1.021–1.108
Chest wall V30	< 0.001	1.031	1.015–1.047
Chest wall V10	0.004	1.006	1.002–1.010
Tumour size (mm)	0.002	1.082	1.030–1.136
Age	0.269	0.971	0.920–1.023
Gender	0.867	1.083	0.426–2.754
Multivariate analysis
Chest wall Dmax1 cm3	0.025	1.104	1.012–1.204
Tumour size (mm)	0.003	1.080	1.026–1.136