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Table 2 Test–retest reliability between baseline and C1D15 (n = 17)

From: Psychometric evaluation of the Indolent Systemic Mastocytosis Symptom Assessment Form (ISM-SAF) in a phase 2 clinical study

ISM-SAF items/domains n ICC (95% confidence interval)a
Total Symptom Score 16 0.956
Gastrointestinal Symptom Score 16 0.858
Skin Symptom Score 17 0.981
Q1. Bone pain 17 0.867
Q2. Abdominal pain 17 0.935
Q3. Nausea 17 0.858
Q4. Spots 17 0.986
Q5. Itching 17 0.949
Q6. Flushing 17 0.959
Q7. Fatigue 17 0.878
Q8. Dizziness 17 0.936
Q9. Brain fog 17 0.917
Q10. Headache 17 0.944
Q11. Diarrhea frequency 17 0.932
Q12. Diarrhea severity 16 0.741
  1. C#D# cycle number, day number, ICC intraclass correlation coefficient, ISM-SAF Indolent Systemic Mastocytosis Symptom Assessment Form
  2. aThe ICC was computed using the single measurement, absolute agreement, two-way mixed effects model