Table 4 Adjusted logistic regression analyses between the continuous GMSI scores and the dichotomized workability score (WAS; n = 2219)
Independent variables | Model 1 partially adjusted1 | Model 2 partially adjusted2 | Model 3 partially adjusted3 | Model 4 fully adjusted4 | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
(OR increase with 95% CI, WAS Poor to good vs. Excellent) | (OR increase with 95% CI, WAS Poor to good vs. Excellent) | (OR increase with 95% CI, WAS Poor to good vs. Excellent) | (OR increase with 95% CI, WAS Poor to good vs. Excellent) | |||||||||
OR | 95% CI | P value | OR | 95% CI | P value | OR | 95% CI | P value | OR | 95% CI | P value | |
GMSI Demanding circumstances, effect per unit increase in mean score (1–5) | ||||||||||||
Resource deficits | 1.11 | 0.98–1.25 | .096 | 1.10 | 0.98–1.25 | .115 | 1.12 | 0.99–1.26 | .085 | 1.11 | 0.98–1.26 | .108 |
Organisational control | 0.90 | 0.78–1.05 | .177 | 0.90 | 0.78–1.05 | .187 | 0.89 | 0.76–1.03 | .122 | 0.89 | 0.76–1.04 | .132 |
Role conflicts | 0.76 | 0.65–0.88 |  < .001 | 0.76 | 0.65–0.88 |  < .001 | 0.77 | 0.66–0.90 | .001 | 0.75 | 0.64–0.88 |  < 0.001 |
Role demands | 0.70 | 0.59–0.83 |  < .001 | 0.69 | 0.58–0.82 |  < .001 | 0.69 | 0.58–0.82 |  < .001 | 0.73 | 0.62–0.87 |  < 0.001 |
Group dynamics | 0.86 | 0.72–1.02 | .083 | 0.87 | 0.73–1.03 | .107 | 0.86 | 0.72–1.03 | .105 | 0.90 | 0.75–1.07 | .222 |
Buffer-function | 0.89 | 0.77–1.03 | .119 | 0.91 | 0.78–1.05 | .190 | 0.91 | 0.79–1.06 | .226 | 0.92 | 0.80–1.07 | .283 |
Co-workers | 1.13 | 0.96–1.33 | .156 | 1.13 | 0.96–1.33 | .153 | 1.14 | 0.96–1.34 | .137 | 1.09 | 0.92–1.29 | .305 |
Container-function | 0.87 | 0.75–1.01 | .064 | 0.85 | 0.73–0.99 | .034 | 0.86 | 0.74–1.00 | .051 | 0.86 | 0.74–1.01 | .057 |
GMSI Supportive circumstances, effect per unit increase in mean score (1–5) | ||||||||||||
Supportive management | 0.99 | 0.89–1.11 | .904 | 1.00 | 0.89–1.11 | .960 | 1.00 | 0.89–1.11 | .924 | 1.00 | 0.90–1.12 | .991 |
Cooperating co-workers | 1.05 | 0.88–1.27 | .576 | 1.04 | 0.86–1.25 | .714 | 1.03 | 0.86–1.25 | .732 | 1.01 | 0.84–1.22 | .895 |
Supportive colleagues | 1.13 | 1.02–1.25 | .018 | 1.13 | 1.02–1.26 | .017 | 1.12 | 1.01–1.25 | .030 | 1.13 | 1.01–1.25 | .027 |
Supportive private life | 1.32 | 1.19–1.47 |  < .001 | 1.32 | 1.19–1.48 |  < .001 | 1.23 | 1.10–1.38 |  < .001 | 1.23 | 1.10–1.37 |  < .001 |
Supportive org. structures | 1.25 | 1.09–1.42 | .001 | 1.26 | 1.10–1.43 | .001 | 1.25 | 1.10–1.43 | .001 | 1.22 | 1.06–1.39 | .004 |
Length of work experience as a principal | ||||||||||||
1–3 years of experience | 1.47 | 1.08–2.00 | .014 | 1.46 | 1.08–1.99 | .015 | 1.43 | 1.05–1.94 | .024 | 1.42 | 1.04–1.94 | .028 |
 > 3–5 years of experience | 1.18 | 0.88–1.58 | .272 | 1.18 | 0.88–1.59 | .263 | 1.16 | 0.87–1.56 | .314 | 1.17 | 0.87–1.57 | .311 |
 > 5 to 10 years of experience | 1.04 | 0.80–1.35 | .793 | 1.04 | 0.80–1.36 | .760 | 1.02 | 0.79–1.34 | .861 | 0.99 | 0.76–1.30 | .955 |
 > 10 years of experience | Ref | – | – | Ref | – | – | Ref | – | – | Ref | – | – |
School-level | ||||||||||||
Pre-school | – | – | – | 1.17 | 0.75–1.82 | .492 | 1.18 | 0.75–1.83 | .475 | 1.28 | 0.81–2.01 | .287 |
Pre-and compulsory school | – | – | – | 1.64 | 0.92–2.94 | .096 | 1.71 | 0.95–3.08 | .072 | 1.81 | 1.00–3.27 | .052 |
Compulsory school | – | – | – | 1.44 | 0.94–2.21 | .092 | 1.45 | 0.95–2.22 | .088 | 1.54 | 1.00–2.38 | .051 |
Upper secondary school | – | – | – | 1.24 | 0.77–1.97 | .375 | 1.23 | 0.77–1.96 | .397 | 1.29 | 0.80–2.08 | .295 |
Adult education | – | – | – | Ref | – | – | Ref | – | – | Ref | – | – |
Self-rated health | ||||||||||||
Poor, Neither good nor poor (= 0) vs. good, very good (= 1) | – | – | – | – | – | – | 2.08 | 1.54–2.81 |  < 0.001 | 2.09 | 1.54–2.83 |  < 0.001 |
Self-efficacy, effect per unit increase in mean score (1–5) | ||||||||||||
Mean score | – | – | – | – | – | – | – | – | – | 2.01 | 1.60–2.53 |  < 0.001 |