Table 3.
Principle Components Factor Analyses for EHAS and EHAS-SF with Reliability Statistics
| EHAS Item | EHAS Subscale | PCFA 1 EHAS | PCFA 2 EHAS-SF |
|---|---|---|---|
| Retained for EHAS-SF | |||
| I keep track of my symptom levels | HV | 0.802 | 0.816 |
| As soon as I awake, I worry I will have discomfort in my throat/chest/esophagus during the day | ANX | 0.800 | 0.860 |
| There is nothing I can do to reduce the intensity of my symptoms | ANX | 0.797 | 0.857 |
| These symptoms are terrible and I think things are never going to get better | ANX | 0.778 | 0.806 |
| When I feel discomfort in my throat/chest/esophagus it frightens me | ANX | 0.773 | 0.826 |
| I am aware of sudden or temporary changes in my esophagus | HV | 0.749 | 0.726 |
| These symptoms are awful and they overwhelm me | ANX | 0.716 | 0.724 |
| Removed | |||
| I can’t seem to keep my symptoms out of my mind | ANX | 0.683 |
|
| I am very sensitive to esophageal sensations such as heartburn or chest pain | HV | 0.681 | |
| I notice my symptoms even if I am busy with another activity | HV | 0.670 | |
| I often worry about problems in my throat/chest/esophagus | ANX | 0.663 | |
| I am quick to notice changes in the location or extent of my symptoms | HV | 0.653 | |
| I anxiously want the symptoms to go away | ANX | 0.650 | |
| I have a difficult time enjoying myself because I cannot get my mind off the discomfort in my throat/chest/esophagus | ANX | 0.617 | |
| I focus on esophageal sensations | HV | 0.590 | |
| Reliability Statistics | |||
| Cronbach Alpha | 0.929 | 0.908 | |
| Guttman Split Half | 0.854 | 0.877 | |