TABLE 2.
Upper airway questionnaires used in the one-stop assessment clinic
| Questionnaire | Target area | Summary |
| Vocal Cord Dysfunction Questionnaire (VCDQ) [10] | ILO | A 12-item questionnaire for symptom monitoring in ILO 5-point Likert scale (1–5) |
| Score range: 12–60 | ||
| Minimal clinically important change: 4 | ||
| Total Nasal Symptom Score (TNSS) [36] | Nasal disease | Adapted version: 3-item questionnaire |
| 4-point Likert scale (0–3) | ||
| Score range: 0–9 | ||
| Minimal clinically important change reported from: 0.28–3.6 | ||
| Asthma Control Questionnaire (ACQ) [37] | Asthma | Adapted version: ACQ-5 5-item questionnaire |
| 7-point Likert scale (0–6) | ||
| Mean score of all responses calculated; score range: 0–6 | ||
| A score below 1 interpreted as good control | ||
| Minimal clinically important change: 0.5 | ||
| Nijmegen questionnaire [24] | BPD | Validated for hyperventilation syndrome (Note: not known to be valid in all types of BPD) |
| 16-item questionnaire | ||
| 5-point Likert scale (0–4) | ||
| Scored out of 64 | ||
| Score over 23 suggestive of hyperventilation syndrome | ||
| Modified Medical Research Council (mMRC) scale [38] | Multidimensional breathlessness | Adapted scale |
| Used to assess the degree of baseline functional disability due to dyspnoea | ||
| 5-point scale (0–4) | ||
| Minimal clinically important change: 0.5 | ||
| GAD-7 [39] | Anxiety | Captured over the past 2 weeks |
| 7-item questionnaire | ||
| 4-point Likert scale (0–3) | ||
| Cut-offs of 5, 10 and 15 for mild, moderate and severe anxiety | ||
| Minimal clinical important change: 4 | ||
| PHQ-8 [40] | Depression | Captured over the past 2 weeks |
| 8-item questionnaire | ||
| 4-point Likert scale (0–3) | ||
| Cut-offs of 2, 5, 8 and 12 for normal, mild, moderate and severe depression | ||
| Minimal clinical important change: 3 | ||
| Dyspnoea-12 (D-12) [41] | Multidimensional breathlessness | 12-item questionnaire covering both physical and psychological dimensions. |
| 4-point likert scale (0–3) | ||
| Item scores are summed and can be divided into subscales reflecting physical and affective domains. | ||
| Minimal clinical important change 0.25 |
ILO: inducible laryngeal obstruction; BPD: breathing pattern disorder.