Relationship between time elapsed since completion of radiotherapy and quality of life of patients with breast cancer

Table 5 Variables showing a significant association with time elapsed since radiotherapy on multivariate analyses

Variables	Regression coefficients	Standard error	Standard regression coefficient	t-value	p-value
Social function
Constant term	70.104	17.984
Age	−0.161	0.208	−0.071	−0.770	0.443
Level of education	2.500	2.162	0.114	1.156	0.250
Surgical technique	−5.585	2.373	−0.230	−2.353	0.020
Surgical staging	1.787	3.047	0.057	0.586	0.559
Number of chemotherapy cycles	1.804	0.945	0.175	1.908	0.059
Time elapsed since completion of RT	5.787	1.915	0.276	3.022	0.003
Pain
Constant term	−0.578	29.509
Age	0.664	0.342	0.187	1.941	0.055
Level of education	6.030	3.548	0.175	1.700	0.092
Surgical technique	−1.481	3.894	−0.038	−0.380	0.704
Surgical staging	0.919	5.000	0.019	0.184	0.854
Number of chemotherapy cycles	−0.106	1.551	−0.006	− 0.068	0.946
Time elapsed since completion of RT	−8.118	3.143	−0.245	−2.583	0.011
Concerns about future state of health
Constant term	−0.280	25.906
Age	0.237	0.300	0.074	0.788	0.432
Level of education	6.092	3.115	0.195	1.956	0.053
Surgical technique	−3.303	3.419	−0.095	−0.966	0.336
Surgical staging	13.289	4.389	0.297	3.028	0.003
Number of chemotherapy cycles	−0.131	1.362	−0.009	− 0.096	0.923
Time elapsed since completion of RT	6.974	2.759	0.233	2.528	0.013

ISSN: 1471-2407