| Titre : | Look before you leap : Stratify before you standardize. (1999) |
| Auteurs : | B.C.K. CHOI ; N.A. DE GUIA ; P. WALSH ; Bureau of Cardio-Respiratory Diseases and Diabetes. Laboratory Centre for Disease Control. Health Canada. Tunney's Pasture. Ottawa. ON. CAN |
| Type de document : | Article |
| Dans : | American journal of epidemiology (vol. 149, n° 12, 1999) |
| Pagination : | 1087-1096 |
| Langues: | Anglais |
| Mots-clés : | Epidémiologie ; Méthodologie ; Homme ; Taux standardisé |
| Résumé : | [BDSP. Notice produite par INIST R0xF6trb. Diffusion soumise à autorisation]. This paper presents a mathematical model to show the conditions in which age standardization can be used to summarize age-specific rates for comparison purposes over calendar time. It shows that the conditions for valid comparison depend on the type of measure used for comparison, that is, difference, ratio, or percent change. If the measure for comparison is a difference of the standardized rates at two time points, then the age-specific rates need to maintain a constant rate difference over time for the comparison to be valid. If the measure for comparison is a ratio or percent change of the standardized rates at two time points, then the age-specific rates need to maintain a constant rate ratio over time for the comparison to be valid. Since in reality, as shown by our Canadian empirical data, age-specific rates do not always maintain a consistent pattern over time, it is recommended that one should always stratify the data to look at patterns of age-specific rates before applying age standardization. |
Service Documentation EHESP
Me connecter
PORTAIL DOCUMENTAIRE
École des hautes études en santé publique
Catalogue
Multi-bases
Accueil
Sélection de la langue
Adresse
Service Documentation EHESPBibliothèque Rennes Avenue du Professeur Léon Bernard – CS 74312 – 35043 Rennes Cedex Bibliothèque MSSH Paris 20 avenue George Sand - 93210 La Plaine Saint-Denis
France
Bibliothèque Rennes : 02 99 02 29 50 Bibliothèque MSSH Paris : 02 99 02 24 50
contact