Table 1. Characteristics of the study population, interview circumstances and interviewers’ characteristics, Belgian Health Interview Survey, 2013 (weighted percentages).
| % | N | |
|---|---|---|
| Participant characteristics (N = 8,133) | ||
| Gender | ||
| Male | 48.1 | 3867 |
| Female | 51.9 | 4266 |
| Age group (years) | ||
| 15–34 | 27.1 | 2106 |
| 35–54 | 35.7 | 2810 |
| ≥ 55 | 37.2 | 3217 |
| Nationality | ||
| Belgian | 90.3 | 7042 |
| European | 5.8 | 690 |
| Non-European | 3.8 | 396 |
| Missing | 0.04 | 5 |
| Education level | ||
| Primary/No degree | 10.0 | 860 |
| Secondary inferior | 12.9 | 1151 |
| Secondary superior | 34.0 | 2602 |
| Superior education | 42.2 | 3406 |
| Missing | 0.9 | 114 |
| Chronic conditions | ||
| Yes | 29.0 | 2562 |
| No | 70.9 | 5570 |
| Missing | 0.00 | 1 |
| Household size | ||
| 1 | 19.1 | 1701 |
| 2 | 33.6 | 2751 |
| 3 | 17.7 | 1398 |
| 4+ | 29.6 | 2283 |
| Household income | ||
| Quintile 1 | 18.3 | 1685 |
| Quintile 2 | 15.9 | 1243 |
| Quintile 3 | 17.9 | 1381 |
| Quintile 4 | 19.6 | 1422 |
| Quintile 5 | 19.2 | 1455 |
| Missing | 9.1 | 947 |
| Region | ||
| Flanders | 58.4 | 2831 |
| Brussels | 9.7 | 2062 |
| Wallonia | 31.9 | 3240 |
| Interview circumstances | ||
| Length of interview | ||
| Short (facetime ≤ 13’) | 25.1 | 1829 |
| Average (13’ < facetime ≤ 37’) | 49.5 | 4091 |
| Long (facetime > 37’) | 25.4 | 2213 |
| Quarter of interview | ||
| Quarter 1 | 24.0 | 1367 |
| Quarter 2 | 24.6 | 1591 |
| Quarter 3 | 25.5 | 2123 |
| Quarter 4 | 25.8 | 3052 |
| Interviewer characteristics (N = 183) | ||
| Gender | ||
| Male | 62.1 | 110 |
| Female | 37.9 | 73 |
| Age group (years) | ||
| 20–44 | 19.9 | 45 |
| 45–64 | 53.9 | 96 |
| > 64 | 26.2 | 42 |
| Education level | ||
| Secondary inferior/Secondary superior | 34.7 | 65 |
| Superior education | 54.7 | 95 |
| Unknown | 10.6 | 23 |
| Professional status | ||
| Active | 54.3 | 90 |
| Unemployed/Retired | 30.9 | 60 |
| Other/Unknown | 14.7 | 33 |
| Prior experience with the HIS | ||
| Yes | 87.9 | 141 |
| No | 12.1 | 42 |
| Number of interviews performed by interviewer | ||
| Low (count < 47) | 46.8 | 88 |
| Average (47 ≤ count < 60) | 24.5 | 41 |
| High (60 ≤ count < 98) | 23.2 | 36 |
| Very high (≥ 98) | 5.5 | 18 |