Research Article
Evaluation of the Quick Environmental Exposure and Sensitivity Inventory in a Danish Population
Table 4
Differential item functioning (DIF). Only significant results are shown.
| | Scale | Item | Asthmatics | Depressives | Somatisers | | partial ββcoefficient |
| | Chemical int. | item 2 (tobacco smoke) | 0.17 (se = 0.06) | β0.16 (se = 0.06) | β | | item 4 (gasoline) | β0.23 (se = 0.06) | β | β | | item 8 (tar) | β | 0.16 (se = 0.04) | β0.17 (se = 0.06) |
| | Life Impact | item 2 (work ability) | β | 0.14 (se = 0.06) | β | | item 4 (choice of clothing) | β | β0.31 (se = 0.12) | β | | item 6 (choice of products) | β0.16 (se = 0.08) | β | β | | item 8 (choice of hobbies) | 0.20 (se = 0.09) | β | β | | item 9 (relation with spouse) | β | β | β0.19 (se = 0.10) |
| | Symptom severity | item 1 (muscle and joint pain) | 0.23 (se = 0.06) | β0.19 (se = 0.06) | β | | item 2 (mucosal or respiratory) | 0.47 (se = 0.04) | β0.30 (se = 0.07) | β | | item 4 (stomach and digestive) | β | β0.17 (se = 0.07) | β | | item 5 (concentration/memory) | β0.16 (se = 0.06) | 0.36 (se = 0.06) | β | | item 6 (tension and nervousness) | β0.15 (se = 0.07) | 0.79 (se = 0.04) | β | | item 7 (balance or coordination) | β | 0.21 (se = 0.07) | 0.24 (se = 0.08) | | item 10 (genital and urinary) | β0.20 (se = 0.06) | β | β0.27 (se = 0.08) |
| | Other Int. | item 3 (unusual cravings) | β0.33 (se = 0.06) | β | β | | item 4 (feeling ill after meals) | β | 0.42 (se = 0.08) | 0.39 (se = 0.07) | | item 6 (feeling ill) | β0.21 (se = 0.08) | 0.24 (se = 0.09) | β | | item 7 (alcoholic drinks) | β | 0.27 (se = 0.09) | β | | item 10 (allergic reactions) | 0.36 (se = 0.06) | β0.21 (se = 0.10) | β |
| | Masking Index | item 2 (alcoholic intake) | β0.17 (se = 0.08) | β0.54 (se = 0.09) | β | | item 4 (fragranced products) | β0.51 (se = 0.06) | β0.35 (se = 0.11) | β | | item 10 (routine use of medicine) | 0.62 (se = 0.05). | 0.72 (se = 0.06) | β |
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