Table 1.

Characteristics of the study cohort and the sub-cohort for modelling

Covariates	The whole cohort		The cohort used for modellingc
	Number	(%)	Number	(%)
All	3536	100	2954	100
Age group
18–35	122	3.5	111	3.8
36–45	665	18.8	610	20.7
46–50	583	16.5	515	17.4
51–55	630	17.8	525	17.8
56–60	844	23.9	664	22.5
61–63	692	19.6	529	17.9
Country of birth
Sweden	2950	83.4	2509	84.9
Other country	586	16.6	445	15.1
Educational level
Elementary school (≤9 years)	551	15.6	378	12.8
High school (10–12)	1549	43.8	1265	42.8
College/University (> 12)	1436	40.6	1311	44.4
Geographic living area
North	425	12.0	344	11.7
Middle	486	13.7	403	13.6
Stockholm	823	23.3	710	24.0
West	934	26.4	767	26.0
South	868	24.6	730	24.7
Type of living area
Larger cities	1376	38.9	1172	39.7
Medium cities	1252	35.4	1051	35.6
More rural areas	908	25.7	731	24.8
Family composition
Married/cohab., no child at home	1042	29.5	852	28.8
Married/cohab., child at home	1235	34.9	1129	38.2
Single, no child at home	885	25.0	656	22.2
Single, child at home	374	10.6	317	10.7
Marital status
Unmarried, divorced, widow	1523	43.1	1228	41.6
Married, registered partnership	2013	56.9	1726	58.4
Occupational sector
Not in paid work/no information	810	22.9	379	12.8
Public	1409	39.9	1330	45.0
Private	1317	37.3	1245	42.2
Cancer stage
Missing all T, N, M	25	0.7
T0N0M0 + Stage 0 + I	2120	60.0	1799	60.9
Stage II	1162	32.9	990	33.5
Stage III + IV	229	6.5	165	5.6
Previous SA, net daysa,b
No previous SA	2870	81.2	2444	82.7
0.25–90	485	13.7	417	14.1
≥ 90	181	5.1	93	3.2
Previous SA, diagnosesa
Mental diagnoses	161	4.6	124	4.2
Other diagnoses	540	15.3	412	14.0
Previous DP net daysa
0	2908	82.2	2771	93.8
0,25–365	180	5.1	153	5.2
≥ 365	448	12.7	30	1.0
Previous DP diagnosesa
Mental diagnoses	181	5.1	47	1.6
Other diagnoses	466	13.2	137	4.6
Previous visits in specialized outpatient carea
0	1549	43.8	1390	47.1
1–2 visits	1039	29.4	898	30.4
≥ 3 visits	948	26.8	666	22.6
Previous visits in outpatient care, diagnosesa
Mental diagnoses	166	4.7	72	2.4
Other diagnoses	1825	51.6	1441	48.8
Previous inpatient care, daysa
0	3123	88.3	2709	91.7
1–14 days	354	10.0	235	8.0
≥ 14 days	59	1.7	10	0.3
Previous inpatient care, diagnosesa
Mental diagnoses	32	0.9	11	0.4
Other diagnoses	391	11.1	238	8.1

The table included sociodemographic factors, cancer stage, and previous sickness absence (SA), disability pension (DP), and healthcare (n and %) for the cohort of all women in Sweden < 65 years with a first breast cancer diagnosis in 2010 as well as for those included in the logistic regression used to build a predictive model

^a Previous = in the period 730–15 days before the BC diagnosis date

^b The first 14 days of SA spells are not included

^c That is, those at risk for a new SA spell