Description of observational studies with an ocular disorder as an outcome
| Primary author | Smeeth29 |
| Year | 2003 |
| Study design | Case-control study |
| Length of study/follow-up | At least 180 days |
| Population | UK primary care electronic medical records (Clinical Practice Research Datalink) |
| Sample size | 15 479 people with cataract and 15 479 controls |
| Age range | 40 years + |
| Asthma diagnosis definition | N/A |
| ICS type (drug/name) | Beclomethasone, budesonide, fluticasone |
| Control/comparison | General population matched controls with no ICS ever |
| Primary outcome | Cataracts |
| Secondary outcomes of study | N/A |
| Statistical analysis | Conditional logistic regression |
| Adjusted covariates | Only OCS and consultation rate for the asthma effect estimate |
| Crude results | 1.52 (95% CI 1.41 to 1.65) |
| Adjusted results | 1.05 (95% CI 0.95 to 1.16) |
ICS, inhaled corticosteroid; OCS, oral corticosteroids.