SciELO - Scientific Electronic Library Online

vol.25 issue1Difference in levels of physical activity, sedentary lifestyle, and eating habits among university students from different health programs at a private university in Bogotá, ColombiaUniversity students' attitudes towards their own bodies: University of Alicante, 2003 and 2018 author indexsubject indexarticles search
Home Pagealphabetic serial listing  

Services on Demand




Related links

  • On index processCited by Google
  • Have no similar articlesSimilars in SciELO
  • On index processSimilars in Google


Revista Española de Nutrición Humana y Dietética

On-line version ISSN 2174-5145Print version ISSN 2173-1292


GOMEZ, Fernando Agustin Di Fermo et al. Comparison of metabolic effects of bariatric surgery in a group of elderly and young adults: a prospective cohort. Rev Esp Nutr Hum Diet [online]. 2021, vol.25, n.1, pp.18-28.  Epub Nov 08, 2021. ISSN 2174-5145.


The aim was to evaluate metabolic parameters in a group of patients older than 65 years old compared to younger adults at three and six months after bariatric surgery (BS).

Material and Methods:

Prospective analytic study of a cohort of 40 patients under BS since June, 2015 to March, 2018. Participants were divided into two groups (Group A: ≥65; B: <65 years old). Anthropometrics and metabolic parameters were assessed before and 3 and 6 months after BS. The excess weight loss percentage (EWLP) and the Triglycerides/HDLc (TAG/HDLc) ratio, as a marker of insulin resistance, were also evaluated. A p <0.05 was statistically significant.


Forty patients were under BS, we included thirty six: 21 patients were at group A (median age: 59, RIQ: 48-61 years old) and 15 at group B (median age 67, RIQ: 66-69 years old), the prevalence of patients with type 2 diabetes was 53% (n=8) in group B vs. 43% (n=9) at group A. After 3 and 6 months of BS, we found no statistical difference between groups in weight loss and the EWLP and the decrease in fasting blood glucose (FBG), HbAc1% levels but a significant rise in the levels of HDLc in group B. We observed a statistically decrease in the TAG/HDLc ratio and a positive correlation between HbA1c% and levels of FBG, HDLc and the TAG/HDLc ratio in group B. Moreover, we found a reduction in the use of antidiabetics and lipid lowering drugs in this age group.


The metabolic effects of BS achieved significant benefits in the ≥65 y/o cohort, especially by decreasing insulin resistance, even in those patients without diagnosis of type 2 diabetes.

Keywords : Bariatric Surgery; Body Mass Index; Diabetes Mellitus, Type 2; Aged; Weight Loss.

        · abstract in Spanish     · text in Spanish     · Spanish ( pdf )