Table 3 Distribution of the study population among Nurse-WIS risk categories and results of the final logistic regression model for testing discriminant validity
Variables | Nurse-WIS | |||
|---|---|---|---|---|
| Â | Low/moderate risk | Heightened risk | p value* | Final model OR (95% CI) |
76.3% | 23.7% | Â | Â | |
(n = 302) | (n = 94) |  |  | |
Gender | ||||
Female | 74.6% (244) | 25.4% (83) | Â | Â |
Male | 84.1% (58) | 15.9% (11) | 0.094 | - |
Age | ||||
≤ 35 years | 88.0% (132) | 12.0% (18) |  | 1 |
36 to 45 years | 72.6% (77) | 27.4% (29) |  | 2.9 (1.47– 5.63) |
46 to 55 years | 72.1% (75) | 27.9% (29) |  | 2.5 (1.27– 4.90) |
> 55 years | 50.0% (18) | 50.0% (18) | <0.001 | 6.7 (2.88– 15.54) |
Grew up in | ||||
Germany | 77.3% (265) | 22.7% (78) | Â | Â |
Other countries | 69.8% (37) | 30.2% (16) | 0.236 | - |
Education | ||||
Lower secondary, elementary school certificate | 72.6% (82) | 27.4% (31) | Â | Â |
Secondary school certificate | 78.7% (166) | 21.3% (45) | Â | Â |
High school/university entrance certificate | 75.0% (54) | 25.0% (18) | 0.451 | - |
Vocational training | ||||
Qualified geriatric nurse or nurse | 74.3% (182) | 25.7% (63) | Â | Â |
Geriatric care or nursing assistant | 75.5% (71) | 24.5% (23) | Â | Â |
Employee without nursing training1 | 86.0% (49) | 14.0% (8) | 0.172 | Â |
Length of service | ||||
0–10 years | 84.7% (149) | 15.3% (27) |  |  |
11–20 years | 71.9% (87) | 28.1% (34) |  |  |
21–30 years | 67.2% (39) | 32.8% (19) |  |  |
More than 30Â years | 65.9% (27) | 34.1% (14) | 0.004 | - |
Scope of employment | ||||
Full time (≥ 35 hours a week) | 77.7% (212) | 22.3% (61) |  |  |
Part time (15–34 hours a week | 72.4% (84) | 27.6% (32) |  |  |
Part time (< 15Â hours a week) | 85.7% (6) | 14.3% (1) | 0.452 | - |
Working hours | ||||
Rotating shifts excluding nights | 77.2% (173) | 22.8% (51) | Â | Â |
Rotating shifts including nights | 72.1% (75) | 27.9% (29) | Â | Â |
Day duty, always at the same times | 79.5% (31) | 20.5% (8) | Â | Â |
Only night work | 79.3% (23) | 20.7% (6) | 0.688 | - |
Musculoskeletal disorders | ||||
No | 80.6% (254) | 19.4% (61) | Â | 1 |
Yes | 59.3% (48) | 40.7% (33) | <0.001 | 2.7 (1.59– 4.89) |
Psychological impairments to well- being | ||||
No | 77.6% (288) | 22.4% (83) | Â | 1 |
Yes | 56.0% (14) | 44.0% (11) | <0.001 | 2.9 (1.24– 6.92) |
Degenerative disease/ disease of the lower limbs | ||||
No | 76.9% (287) | 23.6% (88) | Â | Â |
Yes | 73.9% (17) | 26.1% (6) | 0.738 | - |
Other illnesses | ||||
No | 75.9% (167) | 24.1% (53) | Â | Â |
Yes | 77.8% (137) | 22.2% (39) | 0.651 | - |