The impact of sociodemographic factors on the utilization of radiation therapy in breast cancer patients in Estonia: a register-based study

Table 2 Receipt of radiation therapy over time, Estonia 2007–2018

	Receipt of radiation therapy
	2007–2009 N=1116^a		2010–2012 N=1185^a		2013–2015 N=1153^a		2016–2018 N=1248^a
	No.	row%	No.	row%	No.	row%	No.	row%	Change^b	p-value^c
Total	635	56.9	786	66.3	823	71.4	977	78.3	21.4	<0.001
Age at diagnosis (years)
<50	178	58.0	222	67.1	191	62.8	263	77.1	19.1	<0.001
50–59	264	61.1	296	67.7	327	76.9	329	78.7	17.6	<0.001
60–69	193	51.2	268	64.3	305	71.9	385	78.7	27.5	<0.001
TNM stage
I	266	72.7	309	75.6	370	80.8	407	80.1	7.4	0.014
II	219	46.1	314	57.3	303	61.3	390	73.5	27.4	<0.001
III	150	54.6	163	71.5	150	74.6	180	86.1	31.5	<0.001
Nationality^d
Estonian	403	57.2	493	68.6	502	69.6	608	78.7	21.5	<0.001
Other nationalities	230	56.2	292	63.1	320	74.4	366	77.5	21.3	<0.001
Region of residence
North	272	55.1	371	66.5	405	71.6	466	76.4	21.3	<0.001
West	66	53.7	82	65.6	70	69.3	92	75.4	21.7	0.003
Central	54	55.1	58	66.7	62	66.0	92	79.3	24.2	0.002
North-East	85	59.0	100	62.5	98	72.6	121	82.9	23.9	<0.001
South	158	61.5	175	68.6	188	73.2	206	81.1	19.6	<0.001
Educational level^d
University degree	157	59.3	212	66.5	251	72.1	285	76.0	16.7	<0.001
Secondary plus vocational studies	162	59.8	211	68.3	217	73.3	266	78.7	18.9	<0.001
Secondary studies	222	56.6	258	64.7	257	72.8	316	80.2	23.6	<0.001
Basic and primary studies	42	42.4	52	64.2	53	58.2	55	73.3	30.9	<0.001
Marital status^d
Married	279	59.9	392	70.0	366	73.9	464	79.7	19.8	<0.001
Divorced/widow	272	54.1	289	63.5	337	70.7	352	77.4	23.3	<0.001
Single	67	55.8	92	63.0	92	64.8	127	74.3	18.5	0.011

^aIncludes women with stage I–III breast cancer, age <70 years who underwent primary surgery
^bFrom first to last period
^cChi-square test
^dUnknown category not shown

ISSN: 1475-9276