Table 1

Background characteristics of the respondents to the online survey, compared with the Dutch population

CharacteristicRespondents (n=1960)Initial sample Dutch population*
Age (years)53.4±15.149.948
Gender
 Male54 (52 to 56)5250
 Female46 (44 to 48)4850
Education†
 Low32 (30 to 34)3232
 Middle29 (27 to 31)3140
 High39 (37 to 41)3729
Composition household
 Living with partner76 (74 to 78)7964
 Living without partner22 (20 to 24)1836
Religious beliefs
 Yes58 (56 to 60)5859
 No42 (40 to 44)4241
Urbanisation living area
 Low/middle61 (59 to 63)6057
 High39 (37 to 41)4043
  • Values are % (95% CI) or %, except those for age which are mean±SD or mean.

  • *Data based on statistics from 2009 from Statistics Netherlands (CBS); http://statline.cbs.nl/statweb.

  • †Low, level 1–3 according to International Standard Classification of Education (ISCED) guidance (primary school, lower secondary general education, lower vocational education); middle, level 4 according to ISCED guidance (intermediate vocational or higher secondary general education); high, level 5–7 according to ISCED guidance (higher vocational education or university).