CIPs and IRRs of mental health-related primary care activities according to PSS quintile
| Primary care service | PSS quintile | CIP1y(%) | 95% CI | IR | Crude IRR | Adj. IRR* | 95% CI |
| Talk therapy by GP | 1 | 1.1 | 1.0 to 1.2 | 0.02 | 1 | 1 | Reference |
| 2 | 1.7 | 1.5 to 1.8 | 0.03 | 1.48 | 1.38 | 1.15 to 1.65 | |
| 3 | 2.2 | 2.0 to 2.4 | 0.04 | 2.01 | 1.72 | 1.43 to 2.06 | |
| 4 | 3.1 | 2.9 to 3.3 | 0.06 | 2.76 | 2.38 | 1.99 to 2.83 | |
| 5 | 6.8 | 6.5 to 7.2 | 0.15 | 6.90 | 4.96 | 4.20 to 5.86 | |
| Psychometric tests | 1 | 1.2 | 1.1 to 1.3 | 0.02 | 1 | 1 | Reference |
| 2 | 1.8 | 1.6 to 1.9 | 0.02 | 1.38 | 1.26 | 1.06 to 1.51 | |
| 3 | 2.5 | 2.3 to 2.7 | 0.04 | 2.04 | 1.75 | 1.46 to 2.10 | |
| 4 | 3.2 | 2.9 to 3.4 | 0.05 | 2.82 | 2.16 | 1.82 to 2.56 | |
| 5 | 6.6 | 6.2 to 6.9 | 0.10 | 5.96 | 3.68 | 3.11 to 4.35 | |
| Psychologist services | 1 | 0.4 | 0.4 to 0.5 | 0.02 | 1 | 1 | Reference |
| 2 | 0.7 | 0.6 to 0.8 | 0.04 | 1.57 | 1.49 | 1.08 to 2.05 | |
| 3 | 1.2 | 1.0 to 1.3 | 0.06 | 2.54 | 1.99 | 1.47 to 2.69 | |
| 4 | 1.5 | 1.4 to 1.7 | 0.08 | 3.53 | 3.07 | 2.26 to 4.16 | |
| 5 | 3.3 | 3.1 to 3.6 | 0.21 | 8.69 | 6.49 | 4.90 to 8.58 | |
| Psychiatrist services | 1 | 0.2 | 0.1 to 0.3 | 0.01 | 1 | 1 | Reference |
| 2 | 0.3 | 0.3 to 0.4 | 0.02 | 2.17 | 1.96 | 1.16 to 3.32 | |
| 3 | 0.5 | 0.4 to 0.6 | 0.03 | 3.20 | 1.92 | 1.07 to 3.46 | |
| 4 | 0.9 | 0.8 to 1.0 | 0.06 | 6.86 | 4.61 | 2.77 to 7.69 | |
| 5 | 3.7 | 3.4 to 4.0 | 0.24 | 28.74 | 13.26 | 8.33 to 21.09 | |
| Antidepressants prescriptions | 1 | 2.6 | 2.4 to 2.8 | 0.10 | 1 | 1 | Reference |
| 2 | 3.7 | 3.5 to 3.9 | 0.16 | 1.55 | 1.28 | 1.09 to 1.49 | |
| 3 | 5.7 | 5.4 to 6.0 | 0.25 | 2.37 | 1.84 | 1.58 to 2.16 | |
| 4 | 8.6 | 8.2 to 9.0 | 0.40 | 3.85 | 2.35 | 2.04 to 2.71 | |
| 5 | 21.5 | 20.9 to 22.0 | 1.21 | 11.63 | 4.62 | 4.03 to 5.31 | |
| Anxiolytics prescriptions | 1 | 1.5 | 1.4 to 1.7 | 0.03 | 1 | 1 | Reference |
| 2 | 2.0 | 1.8 to 2.2 | 0.05 | 1.61 | 1.53 | 1.29 to 1.83 | |
| 3 | 2.8 | 2.6 to 3.0 | 0.08 | 2.59 | 2.02 | 1.67 to 2.44 | |
| 4 | 4.1 | 3.8 to 4.4 | 0.13 | 4.27 | 2.56 | 2.16 to 3.03 | |
| 5 | 9.4 | 9.0 to 9.8 | 0.46 | 14.52 | 4.73 | 4.03 to 5.54 | |
| Hypnotics prescriptions | 1 | 3.4 | 3.2 to 3.6 | 0.08 | 1 | 1 | Reference |
| 2 | 4.3 | 4.0 to 4.5 | 0.11 | 1.39 | 1.34 | 1.18 to 1.51 | |
| 3 | 5.3 | 5.0 to 5.6 | 0.16 | 2.03 | 1.67 | 1.47 to 1.89 | |
| 4 | 6.6 | 6.3 to 7.0 | 0.22 | 2.77 | 1.83 | 1.61 to 2.07 | |
| 5 | 11.0 | 10.6 to 11.5 | 0.5 | 6.32 | 2.93 | 2.59 to 3.31 |
*Adjusted for sex, age as 10-year age bands, presence of each of the 39 psychiatric and physical conditions in the multimorbidity index, socioeconomic factors and lifestyle on index date.
CIP1y, Cumulative incidence proportion at 1 year (in %); GP, general practitioner; IR, incidence rate; IRR, incidence rate ratio; PSS, Perceived Stress Scale.