Crude and adjusted ORs for being dispensed two prescriptions in the dispensation period according to recorded/not recorded status, by diagnosis
| Crude ORs (95% CIs) | Adjusted ORs* (95% CIs) | |
| Transient ischaemic attack | ||
| Statins | 1.55 (1.31 to 1.84) | 1.53 (1.28 to 1.82) |
| Antithrombotics | 2.33 (1.76 to 3.08) | 2.33 (1.74 to 3.11) |
| Antihypertensives | 0.83 (0.69 to 0.99) | 0.80 (0.66 to 0.96) |
| Ischaemic stroke | ||
| Statins | 1.59 (1.43 to 1.76) | 1.58 (1.42 to 1.76) |
| Antithrombotics | 1.78 (1.52 to 2.08) | 1.92 (1.63 to 2.27) |
| Antihypertensives | 1.05 (0.94 to 1.18) | 1.16 (1.03 to 1.31) |
| Haemorrhagic stroke | ||
| Antihypertensives | 2.21 (1.57 to 3.12) | 2.54 (1.72 to 3.76) |
| Acute coronary syndrome | ||
| Statins | 1.58 (1.42 to 1.75) | 1.64 (1.47 to 1.83) |
| Antithrombotics | 1.97 (1.68 to 2.32) | 2.02 (1.72 to 2.38) |
| Antihypertensives | 1.74 (1.47 to 2.07) | 1.76 (1.48 to 2.10) |
| Beta-blockers | 1.50 (1.34 to 1.68) | 1.48 (1.32 to 1.66) |
Not recorded patients are the reference group. OR >1 mean recorded patients are more likely to have two dispensations in the dispensation period.
*Adjustments made for age, sex, index year and visits to private specialists. To adjust for clustering, SEs are based on the ‘sandwich’ variance estimator.