Known groups’ construct validity of the Kinyarwanda version of the SF-NDI relative to the severity of dyspeptic symptoms*
| SF-NDI subscale scores | Mild (n 14†) | Severe (n 152) | p Value‡ |
|---|---|---|---|
| Tension (median; range) | 2 (2–6) | 5 (2–10) | <0.001 |
| Interference (median; range) | 2 (2–4) | 6 (2–10) | <0.001 |
| Eating/drinking (median; range) | 3 (2–5) | 6 (2–10) | <0.001 |
| Knowledge/control (median; range) | 2 (2–4) | 3 (2–10) | 0.001 |
| Work/study (median; range) | 2 (2–6) | 6 (2–10) | <0.001 |
| Total (median; range) | 25 (20–44) | 56 (20–92) | <0.001 |
*Mild SF-LDQ<15; severe SF-LDQ≥15.
†Patients who reported ‘non-applicable’ on the SF-NDI were excluded from this analysis.
‡Mann–Whitney U test.
SF-LDQ, Short-Form Leeds Dyspepsia Questionnaire; SF-NDI, Short-Form Nepean Dyspepsia Index.