Table 2

Effects of treatment in AWaC versus treatment as usual on probability of increased or maintained work participation, calculated from logistic and multinomial regression estimates. Marginal effects, evaluated at sample mean of regressors

	Increased/maintained work		Fully in work		Partly in work
Month	Marginal effect	95% CI	Marginal effect	95% CI	Marginal effect	95% CI
All participants
12	0.062	0.005 to 0.118	0.034	−0.026 to 0.095	0.025	−0.014 to 0.064
13	0.056	0.000 to 0.113	0.035	−0.023 to 0.093	0.019	−0.027 to 0.065
14	0.055	−0.011 to 0.121	0.026	−0.021 to 0.073	0.027	−0.017 to 0.070
15	0.076	0.000 to 0.152	0.057	0.011 to 0.103	0.017	−0.034 to 0.069
16	0.028	−0.049 to 0.104	0.025	−0.031 to 0.081	0.002	−0.041 to 0.044
17	0.065	0.005 to 0.126	0.036	−0.020 to 0.092	0.026	−0.005 to 0.057
18	0.070	−0.024 to 0.165	0.038	−0.041 to 0.118	0.029	−0.007 to 0.065
Participants on long-term benefits
12	0.074	0.011 to 0.137	0.002	−0.042 to 0.047	0.058	0.002 to 0.115
13	0.096	0.025 to 0.168	0.025	−0.025 to 0.075	0.058	−0.003 to 0.119
14	0.087	−0.004 to 0.178	0.029	−0.044 to 0.103	0.048	−0.016 to 0.112
15	0.111	0.019 to 0.204	0.044	−0.041 to 0.129	0.056	−0.013 to 0.124
16	0.120	0.009 to 0.230	0.058	−0.043 to 0.159	0.054	−0.009 to 0.116
17	0.159	0.060 to 0.258	0.081	0.012 to 0.151	0.065	−0.010 to 0.141
18	0.178	0.104 to 0.253	0.091	0.033 to 0.149	0.066	0.004 to 0.127

Separate regression analyses for each calendar month after inclusion. Controls for gender, age, marital status, income prior to inclusion, self-assessed health, expectation of return to work, work status at inclusion and treatment site. 95% CIs based on robust SEs allowing for correlated residuals within treatment sites.