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Table 1 Description of background variables for non-weighted and weighted samples

From: Comorbidities, intensity, frequency and duration of pain, daily functioning and health care seeking in local, regional, and widespread pain—a descriptive population-based survey (SwePain)

Auxiliary variable

 

Non-weighted sample

Weighted sample

 

N

Years

Years

Age

   

 25th percentile

4744

41

29

 50th percentile

54

45

 75th percentile

64

62

 

N

%

%

Gender

   

 Men

2148

45

50

 Women

2626

55

50

Country of birth

   

 Sweden

4191

88

84

 EU 27 + Scandinavia (except Sweden)

192

4

4

 Other countries

391

8

12

Educational level

   

 9-year compulsory school

1250

26

24

 Upper secondary school

1988

42

43

 University education

1482

31

33

 Missing

54

1

1

Marital status

   

 Married

2467

52

42

 Unmarried

2307

48

58

Municipality affiliation

   

 Urban area

4125

86

93

 Rural area

649

14

7

Registered sick-leave more than 45 consecutive days in 2009

2134

45

1

  1. EU 27+ Scandinavia = the 27 countries of the European Union (i.e., except Sweden) and Norway and Iceland