73 Change in symptom severity and personal recovery In a model with only total symptom severity, 31.8% of the variance of change in personal recovery was explained. In a model with the separate symptom domains, change in depression/anxiety symptoms was most strongly associated with change in personal recovery (explained variance 27.3%), and negative symptoms also added slightly (6.5%). Change in positive and excitement symptoms did not significantly contribute to change in personal recovery (Table 3). Table 3: Multiple linear regression with symptom severity (BPRS) and personal recovery (PR) change scores (MHRM, dependent variable) (n=49). Independent variable Symptom severity change Β R2 change F change p Total symptoms -0.173 0.318 21.90 0.000** Positive symptoms -0.184 0.031 2.179 0.147 Negative symptoms -0.256 0.065 4.486 0.040* Depression/anxiety symptoms -0.522 0.273 17.623 0.000** Manic excitement/disorganization symptoms 0.068 0.004 0.303 0.585 BPRS-E = Brief Psychiatric Rating Scale; MHRM = Mental Health Recovery Measure *: significant at the 0.05 level **: significant at the 0.01 level Predictive value of symptom severity at baseline on change in personal recovery Hierarchical multiple linear regression analysis showed that only severity of depression/anxiety symptoms at baseline significantly predicted change in personal recovery over the course of three years (R2 = 0.096; p = 0.031). Other symptom domains did not significantly add to the explained variance (Table 4). Table 4: Multiple linear regression of symptom baseline scores (BPRS) and personal recovery (PR) change scores (MHRM, dependent variable) (n=49). Independent variable Symptom severity Β R2 change F change p Positive symptoms -0.066 0.003 0.159 0.692 Negative symptoms -0.044 0.002 0.097 0.757 Depression/anxiety symptoms 0.309 0.096 4.971 0.031* Manic excitement/disorganization symptoms -0.260 0.045 2.343 0.133 BPRS = Brief Psychiatric Rating Scale; MHRM = Mental Health Recovery Measure *: significant at the 0.05 level **: significant at the 0.01 level 4
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