Values of plasma homocysteine in patients over 65 years in a third level health institution of Mexico City
Keywords:
Homocysteine, elderly population, tertiary care, Mexico, hyperhomocysteinemiaAbstract
Objective: To determine the levels of homocysteine (Hcy) in older adults and the possible
association with the studied variables. Methodology: Cross-sectional, descriptive and ex-
ploratory design; both sexes,> 65 years. Sociodemographic and clinical characteristics were
evaluated; 5 mL of blood were extracted; classification used for Hcy: Normal 5-14, μmol/L 15-29 slight, ≥ 30 high. Plasma quantitation by HPLC. Patients were grouped according to these determinations. Descriptive statistics, normality testing of Kolmogorov-Smirnov, χ2 categorical variables, unilateral ANOVA, multiple linear regression model: predictive variables (sociodemographic and clinical characteristics), dependent variable (Hcy levels). Significance level of p <0.05. Results: N = 149, age 76.6 ± 7.2, 65% women,> 85 years, widows 68.2% (p = 0.003). Media Hcy, women 22.3 ± 11.8, men 23.4 ± 11.9; General 22.7. Hcy concentration was different in all age groups; the most frequent level of this metabolite was 15-29 μmol/L with p = 0.001. In one-way ANOVA we found no differ-
ences among the three groups, weight (p = 0.001), BMI (p = 0.027), age (p = 0.054) and hypertension (p = 0.040). The predictor variables in the model were age: p = 0.002; BMI p = 0.030; osteoporosis p = 0.001 and fractures p = 0.022; dyslipidemia p = 0.088. In this first study that determines the levels of Hcy and sets the frequency by age in older adults, most of them showed elevated levels of Hcy, suggesting that it is a risk factor for the diseases studied. Is necessary to make future epidemiological studies to establish
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