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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