Table 3 The validity of the secondhand smoke exposure questionnaire in this study.
Item | Factor loading capacity | Communalities | |
|---|---|---|---|
Factor 1 | Factor 2 | ||
Last 7-d at job someone smoked indoors | 0.532 | − 0.167 | 0.311 |
Last 7-d at rest someone smoked indoors | 0.461 | 0.708 | 0.714 |
Last 7-d in bar someone smoked indoors | 0.539 | 0.633 | 0.692 |
Last 7-d someone smoked in car | 0.725 | − 0.315 | 0.624 |
Last 7-d in home someone smoked indoors | 0.708 | − 0.427 | 0.683 |
Last 7-d in other indoor someone smoked | 0.710 | − 0.069 | 0.509 |
Eigenvalue (before) | 2.316 | 1.127 | |
Variance interpretation (before) | 28.607% | 20.275% | |
Cumulative variance interpretation (before) | 38.607% | 58.822% | |
Eigenvalue (after) | 2.056 | 1.477 | |
Variance interpretation (after) | 34.265% | 34.265% | |
Cumulative variance interpretation (after) | 24.617% | 58.882% | |
KMO | 0.702 | ||
Bartlett's spherical | 222.023 | ||
df | 15 | ||
P | < 0.001 | ||
