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Clinical effect of lifestyle modification on cardiovascular risk in prehypertensives: PREHIPER I study |
Marquez-Celedonio FG, Texon-Fernandez O, Chavez-Negrete A, Hernandez-Lopez S, Marin-Rendon S, Berlin-Lascurain S |
Revista Espanola de Cardiologia 2009 Jan;62(1):86-90 |
clinical trial |
5/10 [Eligibility criteria: Yes; Random allocation: Yes; Concealed allocation: No; Baseline comparability: Yes; Blind subjects: No; Blind therapists: No; Blind assessors: No; Adequate follow-up: Yes; Intention-to-treat analysis: No; Between-group comparisons: Yes; Point estimates and variability: Yes. Note: Eligibility criteria item does not contribute to total score] *This score has been confirmed* |
The objective was to determine the effect of lifestyle modification on cardiovascular risk in individuals with prehypertension, which is defined as a systolic blood pressure between 120 mmHg and 139 mmHg and a diastolic pressure between 80 mmHg and 89 mmHg. A randomized clinical trial was carried out in prehypertensives to compare those who took part in a program involving dietary modification, physical activity and educational sessions with those who followed normal recommendations. Cardiovascular risk was evaluated using the Framingham risk score and the Chi-squared test, the Mann-Whitney U-test and the Friedman test. The mean Framingham score in the intervention group decreased from 5 (rank -10 to 12) to 3.5 (rank -11 to 10; p < 0.05) and the probability of a cardiovascular event at 10 years decreased from 5.29 +/- 3.88 to 4.24 +/- 2.86 (p < 0.05). This improvement was associated with a relative risk of 0.30 (95% confidence interval 0.11 to 0.83) and a relative risk reduction of -69.8% (95% confidence interval -89% to -16.9%). There was no change in control subjects. Lifestyle modification decreased cardiovascular risk in individuals with prehypertension.
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