| Titre : | Components of variability in the systolic blood pressures of preschool children. (1998) |
| Auteurs : | S. SHEA ; C.E. BASCH ; D. RABINOWITZ ; A.D. STEIN |
| Type de document : | Article |
| Dans : | American journal of epidemiology (vol. 147, n° 3, 1998) |
| Pagination : | 240-249 |
| Langues: | Anglais |
| Mots-clés : | Pression artérielle ; Epidémiologie ; Méthodologie ; Enfant ; Homme ; Enfant 2 5 ans ; Etats Unis ; Amérique du Nord ; Amérique ; Appareil cardiovasculaire |
| Résumé : | [BDSP. Notice produite par INIST R0x3Z7F0. Diffusion soumise à autorisation]. The term "horse-racing effect" refers to a positive correlation between the slope at which blood pressure increases with age and blood pressure level at a baseline. Previous studies have reported such an effect in adults, while studies in children have found a negative correlation (termed "the Jenss effect"). These studies used analytic methods in which it was assumed that the blood pressure slopes were constant or the blood pressure profiles were linear. In this study, the authors used a components-of-variance approach that did not require this assumption in order to model serial blood pressure measurements made in 216 US preschool children (mean age at first analyzable blood pressure observation, 58.9 months) at 6-13 visits over a 3-year period (1986-1989). Measurements were made using an automated blood pressure monitor. Values from the second and third measures at each visit were averaged to obtain each observation. Data from 2,203 blood pressure observations were available for analysis. For the full group, over the mean period of observation of 21.1 months, the mean rate of increase was 3.45 mmHg/year for systolic blood pressure and 0.06 mmHg/year for diastolic blood pressure. (...) |
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