Revista Cubana de Medicina
On-line version ISSN 1561-302X
ALVAREZ ALIAGA, Alexis et al. Predictive rate for hypertensive heart disease. Rev cubana med [online]. 2010, vol.49, n.4, pp. 311-329. ISSN 1561-302X.
The prediction rates are vey useful to integral valuation of patients in the hospital and ambulatory means. A research to construct and to validate a rate achieving to predict the risk to develop a hypertensive heart disease was conducted, which includes the selection of risk factors and their weighing by estimation of the odds ratios; for this phase 900 patients with high blood pressure were investigated, seen in the "Carlos Manuel de Céspedes" Polyclinic of Bayamo province from March 1, 2007 to December 31, 2008. It was possible to achieve a rate with two variants, one of quantitative type and other of ordinal type with 4 risk categories. Validation included 4 features of validity and the internal consistency. Sample included 300 patients to assess the validity by construction, of criterion and reliability. Validity was very satisfactory in most of the features. Reliability coefficient was of 0,644 (p < 0,001), the Kappas ones fluctuate between 0,632 for the 1 category and 0,985 for the 4 one. The general Cronbach's Alpha was of 0,557 and standardized one was of 0,643. Finally, the determination coefficient (R2) was estimated showing a high degree of correlation between each item and the remainder. The proposed rate is ready for its implementation.
Keywords : Hypertensive heart disease; risk factors; prediction rate; validity; reliability.