On poverty, politics and psychology: the socioeconomic gradient of mental healthcare utilisation and outcomes.

Since 2008, the Improving Access to Psychological Therapies (IAPT) programme has disseminated evidence-based interventions for depression and anxiety problems. In order to maintain quality standards, government policy in England sets the expectation that 50% of treated patients should meet recovery criteria according to validated patient-reported outcome measures. Using national IAPT data, we found evidence suggesting that the prevalence of mental health problems is greater in poorer areas and that these areas had lower average recovery rates. After adjusting benchmarks for local index of multiple deprivation, we found significant differences between unadjusted (72.5%) and adjusted (43.1%) proportions of underperforming clinical commissioning group areas.