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. Author manuscript; available in PMC: 2019 Jun 10.
Published in final edited form as: Br J Psychiatry. 2019 Mar 22;214(5):260–268. doi: 10.1192/bjp.2019.54

Table 3. Analysis of Self-Management Intervention (SM) for people with severe mental illness compared to control (active or TAU) (random-effects model).

Outcome Time of data collection Trials (k) Participants SM/control (n) Estimate Summary of estimate [95% CI] Z, p Heterogeneity
Q test I2 (%)
Symptoms (1) Total Symptoms End of treatment 17 912/1067 SMD -0.43 [-0.63, -0.22] 4.12, p<.0001* Q = 72.84, p<0.0001 78
Follow-up 13 676/844 SMD -0.88 [-1.19, -0.57] 5.52, p<.0001* Q = 82.69, p<0.0001 87

Positive Symptoms End of treatment 8 372/507 SMD -0.22 [-0.51, 0.07] 1.50, p= 0.13 Q = 26.09, p=0.0005 73
Follow-up 6 312/459 SMD -0.61 [-1.03, -0.19] 2.86, p= 0.004* Q= 33.27, p<0.0001 85

Negative Symptoms End of treatment 9 457/590 SMD -0.26 [-0.47, -0.05] 2.44, p= 0.01* Q= 19.62, p= 0.01 59
Follow-up 7 378/523 SMD -0.51 [-0.82, -0.21] 3.28, p= 0.001* Q= 26.50, p= 0.0002 77

Affective Symptoms (Depression/Anxiety) End of treatment 5 230/222 SMD -0.26 [-0.51, -0.01] 2.04, p = 0.04* Q = 6.69, p= 0.15 40
Follow-up 6 475/489 SMD -0.19 [-0.33, -0.04] 2.43, p = 0.02* Q = 5.91, p= 0.31 15

Relapse (2) Mean number of readmissions to acute care End of treatment 5 315/456 SMD -0.39 [-0.89, 0.11] 1.52, p= 0.13 Q = 38.72, p<0.0001 90
Follow-up 5 257/398 SMD -0.92 [-1.63, -0.21] 2.53, p = 0.01* Q = 57.74, p<0.0001 93

Total number of patients in each group readmitted to acute care End of treatment 2 104/147 RR 0.84 [0.48, 1.46] 0.63, p = 0.53 Q = 0.72, p=0.40 0
Follow-up 10 416/473 RR 0.75 [0.51, 1.08] 1.54, p = 0.12 Q =15.05, p = 0.09 40

Length of admission to acute care End of treatment 6 359/543 SMD -0.26 [-0.50, -0.02] 2.08, p= 0.04* Q = 10.77, p= 0.03 63
Follow-up 7 350/558 SMD -0.68 [-1.10, -0.25] 3.12, p=0.002* Q = 49.76, p<0.0001 88

Recovery (3) Recovery - Total End of treatment 11 507/506 SMD -0.62 [-1.03, -0.22] 3.03, p= 0.002* Q = 89.3, p<0.0001 89
Follow-up 7 543/591 SMD -0.81 [-1.40, -0.22] 2.68, p = 0.007* Q = 105.09 p<0.0001 94

Recovery - Empowerment End of treatment 3 187/159 SMD -1.44 [-2.97, 0.08] 1.86, p = 0.06 Q = 44.89, p<0.0001 96
Follow-up 2 278/260 SMD -0.25 [-0.43, -0.07] 2.68, p = 0.007* Q = 1.13, p = 0.29 12

Recovery- Hope End of treatment 2 200/189 SMD -0.18 [-0.38, 0.01] 1.81, p = 0.07 Q= 0.52, p= 0.47 0
Follow-up 3 487/480 SMD -0.24 [-0.46, -0.02] 2.16, p = 0.03* Q = 5.74, p = 0.06 65

Recovery - Self-Efficacy End of treatment 4 322/279 SMD -0.38 [-0.62, -0.15] 3.18, p = 0.001* Q = 5.42, p= 0.14 45
Follow-up 1 121/100 SMD -0.34 [-0.61, -0.07] 2.50, p = 0.01* N/A N/A

Functioning (4) Functioning End of treatment 15 884/1064 SMD -0.56 [-0.85, -0.28] 3.90, p<0.0001* Q =121.25, p<0.0001 88
Follow-up 14 805/1000 SMD -0.90 [-1.34, -0.45] 3.97, p<0.0001* Q = 237.9, p<0.0001 95

QoL (5) Quality of Life End of treatment 9 440/423 SMD -0.23 [-0.37, -0.10] 3.38, p =0.0007* Q = 7.83, p = 0.45 0
Follow-up 7 491/489 SMD -0.25 [-0.37, -0.12] 3.84, p=0.0001* Q =3.07, p = 0.80 0
*

Statistically significant finding (p<0.05)

Indicates high heterogeneity: I2 exceeds 50% and/or P value less than 0.10