Table 1 Exploratory factor analysis results of symptom assessment scale for patients with Myasthenia Gravis
From: Development and validation of the scale for symptom clusters in patients with myasthenia gravis
Factors Analysis | KMO | Cumulative explained variation(%) | Delete entry | |||||
|---|---|---|---|---|---|---|---|---|
Round 1 | 0.932 | 66.435 | The factor loadings for “diarrhoea” were all < 0.5, deleted | |||||
Round 2 | 0.932 | 67.887 | The factor loadings for “nausea and vomiting” were all < 0.5, deleted | |||||
Round 3 | 0.930 | 69.361 | “Fatigue” factor 1, factor 2 and factor 3 loadings are all > 0.4 and the difference is < 0.2, deleted | |||||
Round 4 | 0.924 | 69.839 | “Shortness of breath” factor 1 and factor 2 loadings are > 0.4 and the difference is < 0.2, deleted | |||||
Round 5 | 0.921 | 70.187 |