Table 3 Associations between covariates and cluster memberships. Multinomial logistic regression model, cluster 1 as reference category. All variables adjusted for (N = 25,194). OR = odds ratio; CI = confidence interval

OR

95% CI

OR

95% CI

OR

95% CI

OR

95% CI

Sex

Male

1,00

1,00

1,00

1,00

Female

0,86*

0,77‒0,97

0,90

0,82‒0,99

1,35***

1,19‒1,53

1,06

0,94‒1,19

Age group

18–30

1,00

1,00

1,00

1,00

31–40

1,92***

1,62‒2,28

1,32**

1,11‒1,57

0,95

0,82‒1,13

0,61***

0,52‒0,72

41–50

2,49***

2,09‒2,97

2,13***

1,80‒2,52

0,81

0,68‒0,97

0,44***

0,37‒0,54

51–59

3,32***

2,77‒3,97

5,70***

4,84‒6,72

0,56***

0,46‒0,68

0,68***

0,59‒0,82

Marital status

Married

1,00

1,00

1,00

1,00

Unmarried

1,14

0,99‒1,30

0,95

0,85‒1,07

1,00

0,87‒1,15

1,05

0,91‒1,22

Divorced / separated / widowed

1,40***

1,20‒1,62

1,20**

1,06‒1,35

1,13

0,95‒1,34

1,26*

1,05‒1,50

Educational level

Upper tertiary

1,00

1,00

1,00

1,00

Lower tertiary

0,87

0,64‒1,18

0,90

0,72‒1,13

0,71**

0,57‒0,88

0,88

0,68‒1,15

Secondary

1,12

0,84‒1,50

1,16

0,93‒1,45

0,56***

0,45‒0,70

0,92

0,70‒1,20

Primary

1,70**

1,26‒2,31

1,42**

1,12‒1,79

0,39***

0,30‒0,52

1,35*

1,01‒1,80

Occupational class

Upper non-manual employee

1,00

1,00

1,00

1,00

Lower non-manual employee

1,04

0,75‒1,44

1,03

0,84‒1,26

0,71**

0,57‒0,88

0,64***

0,50‒0,82

Manual worker

1,32

0,95‒1,82

1,12

0,91‒1,38

0,85

0,67‒1,08

0,66**

0,51‒0,85

Entrepreneur

0,38

0,25‒0,59

0,79

0,62‒1,01

0,61**

0,45‒0,84

1,01

0,76‒1,34

Other

2,45***

1,78‒3,37

1,58***

1,26‒1,98

1,11

0,87‒1,43

0,96

0,75‒1,25

Labour market status at the start of LTSA

Employed

1,00

1,00

1,00

1,00

Unemployed

6,17***

5,24‒7,27

3,36***

2,87‒3,94

2,48***

2,03‒3,04

2,12***

1,74‒2,60

Other

3,52***

2,89‒4,29

3,46***

2,88‒4,16

3,90***

3,20‒4,77

5,08***

4,22‒6,11

Earnings income 2015

1st quartile

1,00

1,00

1,00

1,00

2nd quartile

0,36***

0,31‒0,42

0,64***

0,55‒0,74

0,63***

0,53‒0,75

0,54***

0,45‒0,64

3rd quartile

0,14***

0,11‒0,18

0,39***

0,33‒0,46

0,52***

0,42‒0,64

0,29***

0,24‒0,36

4th quartile

0,10***

0,08‒0,13

0,31***

0,26‒0,37

0,42***

0,33‒0,52

0,35***

0,28‒0,44

Chronic diseases

No

1,00

1,00

1,00

1,00

Yes

1,29***

1,15‒1,44

3,06***

2,79‒3,35

1,27***

1,12‒1,43

1,30***

1,15‒1,46

LTSA diagnosis group

Mental LTSA

1,00

1,00

1,00

1,00

Musculoskeletal LTSA

0,56***

0,47‒0,67

0,30***

0,26‒0,35

0,27***

0,23‒0,33

0,65***

0,53‒0,80

Other diagnosis LTSA

0,51***

0,44‒0,58

0,32***

0,28‒0,36

0,27***

0,24‒0,30

0,78***

0,67‒0,90