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Table 5 Predicted mean of the 4DSQ and WHODAS II scores and effect size of patients from GPs receiving training, feedback and tailored interventions (intervention group, N = 198) or training and feedback (control group, N = 246) based on multilevel linear regression analysis on imputed data, from baseline to 3 and 6 months

From: Effectiveness of a tailored implementation programme to improve recognition, diagnosis and treatment of anxiety and depression in general practice: a cluster randomised controlled trial

  Group Baseline 3 months 6 months
Mean 95% CI Mean 95% CI ES pvalue Mean 95% CI ES pvalue
Distress Intervention 12.37 (11.08, 13.66) 11.16 (9.77, 12.56) −0.0 0.912 10.49 (9.10, 11.87) −0.1 0.235
Control 11.86 (10.63, 13.09) 10.72 (9.48, 11.96)    10.76 (9.50, 12.01)   
Depression Intervention 1.80 (1.40, 2.21) 1.27 (0.85, 1.69) −0.2* 0.027 1.48 (1.04, 1.91) −0.1 0.445
Control 1.58 (1.20, 1.97) 1.52 (1.14, 1.91)    1.42 (1.03, 1.81)   
Anxiety Intervention 3.14 (2.51, 3.78) 2.65 (2.01, 3.30) −0.0 0.847 2.38 (1.73, 3.03) −0.1 0.141
Control 2.77 (2.15, 3.40) 2.33 (1.71, 2.96)    2.40 (1.78, 3.03)   
Somatisation Intervention 8.51 (7.61, 9.41) 8.58 (7.65, 9.52) +0.1 0.284 8.74 (7.78, 9.69) −0.1 0.065
Control 8.25 (7.41, 9.09) 7.85 (7.00, 8.70)    7.61 (6.75, 8.48)   
WHODAS II Intervention 25.82 (23.59, 28.06) 24.32 (22.01, 26.63) +0.1 0.245 21.41 (19.07, 23.75) −0.1 0.293
Control 23.57 (21.57, 25.57) 20.68 (18.65, 22.71)    20.39 (18.36, 22.42)   
  1. 4DSQ Four-Dimensional Symptom Questionnaire, WHODAS II World Health Organisation’s Disability Assessment Scale II, ES effect size of pretest-posttest-control group design using pooled pretest standard deviation.
  2. *p < 0.05, where p is the significance level of the group × time interaction term.