Skip to main content

Table 2 Characteristics of the sample and proportion of workdays lost to sick leave (SL)

From: Socioeconomic status and sick leave granted for mental and somatic disorders: a prospective study of young adult twins

  

SL any

SL somatic

SL mental

 

N

Mean

(SD)

Mean

(SD)

Mean

(SD)

Gender

       

Male

2794

2.35

(6.24)

1.67

(5.06)

0.51

(3.00)

Female

3309

7.01

(9.96)

5.02

(8.14)

1.28

(4.51)

Year of birth (mean = 1972.43, SD = 3.71)

     

1967-1970

2233

5.11

(8.36)

3.37

(6.22)

1.09

(4.03)

1971-1975

2330

5.07

(8.57)

3.77

(7.12)

0.93

(3.76)

1976-1979

1540

4.25

(9.59)

3.22

(8.18)

0.70

(3.95)

Educational attainment (mean = 3.96, SD = 1.40)

    

1 Lower secondary

180

8.46

(12.83)

5.18

(8.89)

2.23

(6.96)

2 Upper secondary, basic

748

7.34

(10.06)

5.24

(8.69)

1.61

(4.68)

3 Upper secondary, final year

1987

5.23

(9.21)

3.90

(7.54)

0.91

(4.00)

4 Post-secondary non-tertiary

220

3.77

(7.70)

2.88

(6.56)

0.58

(3.52)

5 Undergraduate studies

2171

4.41

(8.09)

3.08

(6.50)

0.84

(3.50)

6 Master’s degree or higher

797

2.46

(6.01)

1.69

(4.62)

0.37

(2.81)

Income 2008 equivalent (mean = 376709 NOK, SD = 151151)

  

0 – 99,999 NOK

201

4.86

(10.37)

3.29

(8.53)

1.29

(5.38)

100,000 – 199,999 NOK

485

5.43

(9.20)

3.82

(7.87)

1.33

(4.41)

200,000 – 299,999 NOK

998

7.38

(10.60)

5.21

(8.35)

1.47

(5.15)

300,000 – 399,999 NOK

2026

5.69

(9.17)

4.14

(7.51)

1.01

(4.08)

400,000 – 499,999 NOK

1318

3.93

(7.86)

2.78

(6.38)

0.75

(3.34)

500,000 – 599,999 NOK

581

2.49

(5.56)

1.86

(4.71)

0.30

(1.77)

600,000 – 699,999 NOK

261

1.27

(3.69)

0.68

(1.81)

0.21

(1.25)

Above 700,000 NOK

233

1.38

(3.74)

1.07

(3.49)

0.16

(0.87)

Total

6103

4.88

(8.77)

3.48

(7.10)

0.93

(3.91)

  1. SL granted for somatic disorders, mental disorders, and any disorder in percent. Average follow-up time is 6.57 years.
  2. Note: The mean income corresponds to approximately €45000 or $60000; 100000 NOK (Norwegian kroner) equals approximately €12000 or $16000.