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Is an internal comparison better than using national data when estimating mortality in longitudinal studies?
BACKGROUND: Discrepancies between the results of different studies looking at mortality in similar disease cohorts led us to consider the impact of methodology upon outcome. METHODS: Cohort studies were carried out using age, sex, practice, and calendar time matched control groups in the general pra...
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| Hauptverfasser: | , , , , |
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| Format: | Artigo |
| Sprache: | Inglês |
| Veröffentlicht: |
BMJ Group
2006
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| Schlagworte: | |
| Online Zugang: | https://ncbi.nlm.nih.gov/pmc/articles/PMC2566035/ https://ncbi.nlm.nih.gov/pubmed/16905729 https://ncbi.nlm.nih.govhttp://dx.doi.org/10.1136/jech.2005.041202 |
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