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Table 1 Descriptive overview of F2F respondents according to the mode of SAQ completion (n = 234)

From: Mixing mixed-mode designs in a national health interview survey: a pilot study to assess the impact on the self-administered questionnaire non-response

 Web (n = 84)P&P (n = 88)Refusal (n = 62)
Respondent characteristics
 MeanSDMeanSDMeanSD
 Age46.015.656.520.948.918.2
 N%N%N%
 Sex
  men (n = 103)3634.93836.92928.2
  women (n = 131)4836.65038.23325.2
 Education level a      
  lower (n = 154)4629.96340.94529.2
  higher (n = 80)3847.52531.31721.3
 Country of birth
  Belgium (n = 174)7040.26839.13620.7
  other countries (n = 60)1423.32033.32643.3
 Employment status b      
  employed (n = 101)5049.52524.82625.7
  unemployed (n = 110)2522.75449.13128.2
  student (n = 23)939.1939.1521.7
 Household size
  1 (n = 84)2631.03845.22023.8
  1+ (n = 150)5838.75033.34228.0
Interviewer
 N%N%N%
 Interviewer 1 (n = 29)827.61655.2517.2
 Interviewer 2 (n = 49)1938.82040.81020.4
 Interviewer 3 (n = 47)1940.41327.71531.9
 Interviewer 4 (n = 37)2156.81437.825.4
 Interviewer 5 (n = 30)1653.3723.3723.3
 Interviewer 6 (n = 42)12.41842.92354.8
  1. F2F = face-to-face, SAQ = self-administered, P&P = paper-and-pencil.
  2. a For students the education level equals the highest education level in the household. If this was not possible it was based on their current field of study
  3. b “Employed” refers to respondents who had a paid job for at least one hour a week at the moment of the interview, “Unemployed” refers to respondents without a paid job at the moment of the interview, “Student” refers to respondents who were (fulltime or part-time) enrolled in the regular education system at the moment of the interview. Students who had a (part-time) paid job were classified as students