Antidepressant prescribing rate ratios
| Variable | ARR | 95% CI | P-value |
|---|---|---|---|
| Time period, years | 1.10 | 1.09 to 1.10 | <0.001 |
| Years after establishment of IAPT | 0.99 | 0.99 to 1.00 | 0.61 |
| Wave 1 | (reference group) | ||
| Wave 2 | 1.00 | 0.94 to 1.06 | 0.99 |
| Wave 3 | 0.98 | 0.91 to 1.05 | 0.55 |
| Proportion of population: age <15 years | 0.99 | 0.97 to 1.00 | 0.13 |
| Proportion of population: female | 0.95 | 0.92 to 0.98 | 0.001 |
| Proportion of population: ethnic minority | 0.97 | 0.97 to 0.98 | <0.001 |
| QOF prevalence of depression, % | 1.09 | 0.89 to 1.34 | 0.38 |
| Number of GPs per 10 000 population | 1.03 | 0.98 to 1.07 | 0.29 |
| Socioeconomic status (the most affluent as reference group) | |||
| Second quintile | 1.05 | 0.98 to 1.13 | 0.19 |
| Third quintile | 1.16 | 1.08 to 1.26 | <0.001 |
| Fourth quintile | 1.22 | 1.13 to 1.32 | <0.001 |
| Fifth quintile (the most deprived) | 1.32 | 1.20 to 1.44 | <0.001 |
ARR = antidepressant prescribing rate ratio. QOF = Quality and Outcomes Framework.