Table 3.
CIPs and IRRs of general primary care and chronic care services according to PSS quintile
| Primary care service | PSS quintile | CIP1y(%) | 95% CI | IR | Crude IRR | Adj. IRR* | 95% CI |
| Spirometries | 1 | 2.6 | 2.4 to 2.8 | 0.03 | 1 | 1 | Reference |
| 2 | 3.0 | 2.8 to 3.2 | 0.04 | 1.15 | 1.12 | 1.00 to 1.25 | |
| 3 | 3.0 | 2.8 to 3.3 | 0.04 | 1.14 | 1.06 | 0.94 to 1.19 | |
| 4 | 3.6 | 3.4 to 3.9 | 0.05 | 1.40 | 1.17 | 1.04 to 1.32 | |
| 5 | 4.4 | 4.1 to 4.6 | 0.06 | 1.67 | 1.16 | 1.03 to 1.31 | |
| Blood sugar measures | 1 | 13.9 | 13.5 to 14.3 | 0.21 | 1 | 1 | Reference |
| 2 | 13.7 | 13.3 to 14.1 | 0.21 | 1.02 | 1.02 | 0.97 to 1.07 | |
| 3 | 14.7 | 14.2 to 15.2 | 0.23 | 1.08 | 1.05 | 0.99 to 1.10 | |
| 4 | 16.3 | 15.8 to 16.8 | 0.27 | 1.26 | 1.09 | 1.04 to 1.15 | |
| 5 | 18.4 | 17.8 to 18.9 | 0.3 | 1.44 | 1.12 | 1.06 to 1.18 | |
| ECGs | 1 | 7.4 | 7.1 to 7.7 | 0.08 | 1 | 1 | Reference |
| 2 | 7.7 | 7.4 to 8.0 | 0.09 | 1.03 | 1.05 | 0.99 to 1.12 | |
| 3 | 8.0 | 7.6 to 8.4 | 0.09 | 1.10 | 1.08 | 1.02 to 1.16 | |
| 4 | 9.2 | 8.9 to 9.6 | 0.11 | 1.29 | 1.17 | 1.09 to 1.25 | |
| 5 | 9.6 | 9.3 to 10.1 | 0.11 | 1.32 | 1.14 | 1.07 to 1.22 | |
| Home blood pressure measures | 1 | 5.2 | 4.9 to 5.5 | 0.07 | 1 | 1 | Reference |
| 2 | 5.2 | 5.0 to 5.5 | 0.07 | 0.99 | 1.05 | 0.96 to 1.14 | |
| 3 | 5.3 | 5.0 to 5.6 | 0.07 | 1.01 | 1.04 | 0.95 to 1.14 | |
| 4 | 5.6 | 5.3 to 6.0 | 0.08 | 1.11 | 1.10 | 1.00 to 1.20 | |
| 5 | 5.2 | 4.9 to 5.5 | 0.07 | 0.97 | 1.02 | 0.93 to 1.13 | |
| Annual chronic care consultations | 1 | 18.1 | 17.6 to 18.5 | 0.31 | 1 | 1 | Reference |
| 2 | 17.9 | 17.5 to 18.4 | 0.31 | 1.01 | 1.02 | 0.97 to 1.06 | |
| 3 | 18.7 | 18.2 to 19.2 | 0.33 | 1.09 | 1.04 | 0.99 to 1.10 | |
| 4 | 21.0 | 20.4 to 21.5 | 0.39 | 1.27 | 1.09 | 1.04 to 1.14 | |
| 5 | 23.8 | 23.2 to 24.4 | 0.47 | 1.53 | 1.22 | 1.16 to 1.29 | |
| Out-of-hours contacts | 1 | 14.2 | 13.8 to 14.7 | 0.21 | 1 | 1 | Reference |
| 2 | 16.1 | 15.7 to 16.5 | 0.25 | 1.16 | 1.07 | 1.02 to 1.13 | |
| 3 | 17.4 | 16.9 to 18.0 | 0.28 | 1.32 | 1.13 | 1.07 to 1.19 | |
| 4 | 19.7 | 19.1 to 20.2 | 0.33 | 1.57 | 1.22 | 1.16 to 1.29 | |
| 5 | 26.1 | 25.6 to 26.7 | 0.54 | 2.57 | 1.47 | 1.39 to 1.55 | |
| Daytime consultations | 1 | 77.4 | 76.9 to 77.9 | 3.22 | 1 | 1 | Reference |
| 2 | 79.9 | 79.4 to 80.4 | 3.46 | 1.07 | 1.04 | 1.02 to 1.06 | |
| 3 | 82.1 | 81.6 to 82.6 | 3.82 | 1.18 | 1.10 | 1.07 to 1.12 | |
| 4 | 84.7 | 84.2 to 85.2 | 4.45 | 1.38 | 1.18 | 1.16 to 1.20 | |
| 5 | 88.7 | 88.3 to 89.2 | 5.5 | 1.71 | 1.28 | 1.25 to 1.30 |
*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 %); IR: incidence rate; IRR, incidence rate ratio; PSS, Perceived Stress Scale.