Table 3 Levels of item non-response for key variables from the individual questionnaire by sample type
| Â | Participants with item missing | |
|---|---|---|
| Â | Core % | Boost % |
Participant ethnicity | 0.4 | 2.5 |
Marital status | 0.1 | 2.1 |
Participant economic activity | 0.3 | 5.9 |
Highest education qualification | 0.3 | 9.2 |
Cigarette smoking status | 0.9 | 2.4 |
Frequency drunk alcohol in last 12 months | 1.1 | 2.1 |
Grouped portions of fruit eaten yesterday | 0.1 | 3.0 |
Self-assessed general health | 0.0 | 1.2 |
Long-standing illness or disability | 0.0 | 1.9 |
Limiting long-standing illness or disability | 0.0 | 1.9 |
Summary physical activity level | 0.2 | 16.1 |
Base (unweighted) | 1,569 | 4,942 |