Table 3 Summary of inter-item correlations > 0.80
Item | Correlation | Item |
|---|---|---|
Morning item 6: chest stuffed up | 0.845 | Morning item 7: chest clogged up |
Afternoon item 1: difficulty breathing | 0.844 | Afternoon item 2: chest tightness |
Afternoon item 2: chest tightness | 0.807 | Afternoon item 4: chest heaviness |
Afternoon item 5: chest feels full | 0.812 | Afternoon item 7: chest clogged up |
Afternoon item 6: chest stuffed up | 0.823 | Afternoon item 7: chest clogged up |