Table 2

Logistic regression results of RTW-expectations and illness perceptions as predictors of benefit recipiency at 6-month follow-up in the study population as a whole

Predictor variablesUnadjusted modelAdjusted model
OR (95% CI)p ValueOR (95% CI)p Value
Basic demographics
 Gender1.18 (0.93 to 1.51)0.1711.55 (1.10 to 2.18)0.011
 Age1.00 (0.98 to 1.01)0.9631.00 (0.98 to 1.02)0.529
 Educational level0.79 (0.62 to 1.00)0.0510.99 (0.68 to 1.43)0.968
RTW-expectations*
 Uncertain1.84 (1.33 to 2.53)0.0012.07 (1.39 to 3.06)<0.001
 Negative3.99 (2.91 to 5.47)0.0013.89 (2.61 to 5.79)<0.001
Illness perceptions
 Consequences1.17 (1.10 to 1.25)<0.0011.11 (0.98 to 1.25)0.078
 Timeline1.10 (1.05 to 1.16)<0.0011.03 (0.95 to 1.11)0.414
 Personal control†0.98 (0.93 to 1.03)0.527
 Treatment control†0.97 (0.91 to 1.02)0.260
 Identity1.16 (1.09 to 1.22)<0.0011.09 (0.98 to 1.21)0.083
 Illness concern1.06 (1.01 to 1.11)0.0170.97 (0.89 to 1.06)0.977
 Understanding†1.00 (0.96 to 1.05)0.713
 Emotional response1.05 (1.00 to 1.12)0.0490.90 (0.81 to 1.00)0.066
Causal attributions
 Work0.82 (0.62 to 1.08)0.173
 Stress0.91 (0.62 to 1.32)0.625
 Personal relationships0.83 (0.59 to 1.16)0.294
Mental health status
 HADS total score1.02 (1.00 to 1.04)0.0090.99 (0.96 to 1.02)0.993
SHC
 SHC total score1.02 (1.01 to 1.03)<0.0011.00 (0.98 to 1.01)0.975
 Illness duration (in years)1.02 (1.01 to 1.04)<0.0011.03 (1.01 to 1.05)<0.001
 Group allocation (intervention vs control)1.03 (0.82 to 1.29)0.774
 Blue-collar workers1.51 (1.18 to 1.93)0.0011.44 (0.98 to 2.10)0.057
 Private disability insurance1.15 (0.88 to 1.50)0.292
 Work and health‡ (1–5)0.89 (0.82 to 0.97)0.0080.94 (0.85 to 1.05)0.317
 Self-reported health status§ (1–5)1.43 (1.24 to 1.65)<0.0011.26 (1.02 to 1.57)0.033
  • Significant results are highlighted in italics.

  • *Reference category: positive RTW-expectations.

  • †Higher score indicates more adaptive illness perceptions.

  • ‡Higher score indicates perceiving work as having more positive effects on health.

  • §Higher score indicates worse self-reported health status.

  • HADS, Hospital Anxiety and Depression Scale; RTW, return-to-work; SHC, subjective health complaints.