Comparison 1. Adjunct cognitive behavioural therapy versus adjunct supportive psychotherapy.

Outcome or subgroup title	No. of studies	No. of participants	Statistical method	Effect size
1 Social function ‐ self worth: Average score (Social Self‐Esteem Inventory, endpoint scores, high = good)	1	17	Mean Difference (IV, Fixed, 95% CI)	30.5 [7.51, 53.49]
2 Leaving the study early	1	24	Risk Ratio (M‐H, Fixed, 95% CI)	0.17 [0.02, 1.18]
3 Mental state: 1a. Average score ‐ specific (MADS, endpoint data, low = good, skewed data)			Other data	No numeric data
3.1 Strength of conviction			Other data	No numeric data
3.2 Belief maintenance			Other data	No numeric data
3.3 Affect relating to belief			Other data	No numeric data
3.4 Positive actions on belief			Other data	No numeric data
3.5 Idiosyncrasy of belief			Other data	No numeric data
3.6 Preoccupation with belief			Other data	No numeric data
3.7 Systematisation of belief			Other data	No numeric data
3.8 Insight			Other data	No numeric data
4 Mental state: 1b. Average score ‐ specific (various scales, endpoint scores; low = good, skewed data)			Other data	No numeric data
4.1 Depression (BDI)			Other data	No numeric data
4.2 Anxiety (BAI)			Other data	No numeric data