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Published online 2023 Jun 7. doi: 10.1136/bmj-2022-072724
Table 2
Effect of measles, mumps, and rubella (MMR) vaccination on number of infection related hospitalisations among children randomised to MMR vaccine or placebo at age 5-7 months, Denmark. Values are number of admissions (number of children in analysis) unless stated otherwise
| Analyses | Hospitalisations | Hazard ratio (95% CI)† | |
|---|---|---|---|
| MMR vaccine* | Placebo* | ||
| Intention to treat (n=6536) | 786 (3264) | 762 (3272) | 1.03 (0.91 to 1.18) |
| Per protocol (n=6531)‡ | 784 (3261) | 762 (3270) | 1.03 (0.91 to 1.17) |
Intention-to-treat and per protocol analyses were stratified for sex, prematurity, and site in accordance with randomisation procedure.
*Infants were followed from randomisation to 12 months of age and analysed according to randomisation group using Cox regression.
†Supplementary table S2 presents analyses of crude hazard ratio including complete cases only.
‡Infants who did not follow the allocation were excluded and the time scale defined as time since injection.