Table 3 Exploratory factor analysis of SAQ before removal of failed Items
From: Psychometric evaluation of a Canadian version of the Seattle Angina Questionnaire (SAQ-CAN)
Exploratory factor analysis of the SAQ hypothesised scale/item | Component/factor loadings | |||
|---|---|---|---|---|
Factor 1 | Factor 2 | Factor 3 | Factor 4 | |
Dressing | 0.733 | |||
Walking indoors | 0.612 | |||
Showering | 0.757 | |||
Climbing a hill/stair | 0.447 | 0.522 | 0.054 | 0.418 |
Gardening/vacuuming | 0.459 | 0.560 | 0.035 | 0.349 |
Walking more than a block | 0.652 | |||
Running or jogging | 0.881 | |||
Lifting or moving heavy objects | 0.793 | |||
Participate in strenuous sports | 0.854 | |||
Symptoms of Angina during strenuous activities | 0.523 | |||
Frequency of symptoms | 0.657 | |||
Frequency of use of medication | 0.482 | |||
Bothersome with taking pills as prescribed | 0.205 | |||
Satisfaction that everything being done | 0.794 | |||
Satisfaction with doctor’s explanation | 0.757 | |||
Overall satisfaction with treatment | 0.882 | |||
Interference with enjoyment of life? | 0.714 | |||
Feelings about symptoms persistent | 0.692 | |||
Worry about heart attach/death | 0.492 | |||