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Allostatic load and canine companionship: a comparative study using biomarkers in older adults
Alejandro Morales-Jinez1, Francisco J López-Rincón1, Alicia Ugarte-Esquivel1
1Universidad Autónoma de Coahuila, Escuela de Licenciatura en Enfermería, Torreón, Coahuila, Mexico.
Objective:
to compare the biomarkers and the allostatic load levels in a sample of older persons with and without canine companionship.
Method:
descriptive and comparative study. Data were collected using a sociodemographic questionnaire and a fasting blood sample. The allostatic load comprised 11 biomarkers that are primary and secondary stress mediators, which arise from the following systems: neuroendocrine, immune, metabolic, cardiovascular and anthropometric.
Results:
a significant difference was found in two biomarkers: cortisol (t= -3.091, df=104, p=0.003) and total cholesterol (t= -2.566, df=104, p=0.012), in the allostatic load levels between older adults with and without a canine companionship (U= 1714.00, Z= 2.01, p=0.044). By associating the allostatic load level with the canine companionship, there was a higher frequency of older adults with low allostatic load among those who have canine companion, compared with those who do not have canine companionship. (χ2= 3.69, df=1, p= 0.043).
Conclusion:
canine companionship influences health in a positive way, as the allostatic load is lower in older adults who have a dog as companion, in addition to presenting lower levels of cortisol and total cholesterol.
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