Self-reported reasons for non-participation in the UKLS trial
| Theme | NPQ completers (n=748) n (%) | Subcategory* | n |
|---|---|---|---|
| Practical barriers | 350 (46.8) | Travel | 138 |
| Comorbidities | 120 | ||
| Carer responsibilities | 43 | ||
| Already receiving scans | 41 | ||
| Work and other commitments | 23 | ||
| Not in area | 20 | ||
| Taking part in other research | 8 | ||
| Language or literacy problems | 6 | ||
| Cannot be scanned | 4 | ||
| Prior exposure to radiation | 3 | ||
| Effort required | 5 | ||
| Emotional barriers | 138 (18.4) | Avoidance of lung cancer information | 17 |
| Fear | 15 | ||
| Anxiety from taking part or results | 6 | ||
| Mistrust of medical system | 2 | ||
| Recent bereavement | 2 | ||
| Anxiety of family member | 1 | ||
| Trial acceptability | 18 (2.4) | Trial acceptability | 1 |
| Duration or frequency | 11 | ||
| Unwilling to be randomised | 6 | ||
| Age | 16 (2.1) | Age | 10 |
| Too old | 6 | ||
| Dislikes | 13 (1.7) | Hospital or healthcare system | 9 |
| Scans and tests | 4 | ||
| Low perceived risk | 12 (1.6) | Low perceived risk | 12 |
| Other | 30 (4.0) | No reason stated | 23 |
| Already have/had lung cancer | 4 | ||
| Would like to take part | 2 | ||
| Thought request was for partner | 1 |
*Some individuals provided more than one answer, and were therefore counted in more than one subcategory.
NPQ, non-participation questionnaire; UKLS, UK Lung Cancer Screening.