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Factors associated with sarcopenia and undernutrition in older adults
Author(s) -
SousaSantos Ana Rita,
Afonso Cláudia,
Borges Nuno,
Santos Alejandro,
Padrão Patrícia,
Moreira Pedro,
Amaral Teresa F.
Publication year - 2019
Publication title -
nutrition and dietetics
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.479
H-Index - 31
eISSN - 1747-0080
pISSN - 1446-6368
DOI - 10.1111/1747-0080.12542
Subject(s) - sarcopenia , malnutrition , medicine , overweight , anthropometry , odds ratio , confidence interval , obesity , gerontology , physical therapy
Aim The aim of this study was to describe sarcopenia frequency, to identify the factors associated with sarcopenia and undernutrition, and to evaluate their coexistence. Methods A total of 1500 Portuguese older adults aged ≥65 years from the Nutrition UP 65 study were evaluated using a cross‐sectional analysis. Sarcopenia was defined according to the European Working Group on Sarcopenia in Older People (EWGSOP)2 guidelines (2018), using anthropometric measures. Undernutrition status was evaluated by Mini‐Nutritional Assessment‐Short Form. Results Sarcopenia frequency was 4.4% (n = 66). Sarcopenia coexists with undernutrition or undernutrition risk in 1.5% of this sample. In the multivariate analysis, sarcopenia was directly associated with age >75 years (odds ratio (OR): 2.14; 95% confidence interval (CI): 1.19–3.84), undernutrition or undernutrition risk (OR: 1.86; 95% CI: 1.01–3.43) and inversely associated with male gender (OR: 0.52; 95% CI: 0.29–0.97), overweight (OR: 0.24; 95% CI: 0.13–0.42) or obesity (OR: 0.02; 95% CI: 0.01–0.09) and moderate alcohol consumption (OR: 0.47; 95% CI: 0.24–0.90). Undernutrition or undernutrition risk was associated with a poor or very poor self‐perception of health status (OR: 3.53; 95% CI: 2.32–5.37), a low physical activity level (OR: 1.74; 95% CI: 1.23–2.47), sarcopenia (OR: 1.85; 95% CI: 1.02–3.36), and being overweight (OR: 0.40; 95% CI: 0.27–0.59) or obese (OR: 0.43; 95% CI: 0.28–0.65). Conclusions The majority of the older adults presented low muscle strength (probable sarcopenia), but only a small number had concomitantly low muscle quantity or quality (sarcopenia). Coexistence between these conditions is low which reinforces the need to assess them both individually during geriatric assessment.