Prevalence of sarcopenia and associated risk factors by two diagnostic criteria in community-dwelling older men: the São Paulo Ageing & Health Study (SPAH)
- 546 Downloads
Sarcopenia is an aging syndrome that can be characterized by many criteria adjusted or not by fat mass. This study suggested that the optimal criteria should be selected according to body mass index (BMI) in older men and identified age, BMI, race, smoking, physical activity, hip bone mineral density (BMD) as risk factors for this syndrome.
This study aims to analyze the prevalence of sarcopenia and associated risk factors using appendicular skeletal mass (ASM)/height2 and ASM adjusted for total fat mass criteria in older men from community.
Three hundred ninety-nine men were included and answered a questionnaire about lifestyle and medical history. Individuals were classified by their BMI using the classification adjusted by age. Body composition and bone mineral density were measured by dual X-ray absorptiometry. Sarcopenia was classified according to both criteria. Logistic regression models were used to analyze risk factors associated with sarcopenia.
The mean BMI was 26.46 kg/m2: 12.5 % underweight, 43.6 % normal, and 43.9 % overweight/obese. Fifty-four (13.5 %) were considered sarcopenic by ASM/height2 and 79 (19.8 %) by ASM adjusted for fat (p = 0.001). Fifty-one (12.8 %) individuals had discordant sarcopenia classification: 13 were classified only by ASM/height2 and 38 only by ASM adjusted for fat. Of the 13 subjects classified as sarcopenic only by ASM/height2, 84.6 % (11/13) were underweight and solely one (7.7 %) was considered overweight/obese. In contrast, of those 38 older men classified as sarcopenic only by ASM adjusted for fat, none were underweight and 53 % (20/38) were overweight/obese. Subjects classified as sarcopenic according to both criteria had the same risk factors in the final model analyses (age, BMI, race, smoking, physical activity, hip BMD; p < 0.05).
This study suggested that the optimal criteria for sarcopenia should be selected according to BMI in community-dwelling older men.
KeywordsBMI Body composition Older men Risk factors Sarcopenia
- 1.Cruz-Jentoft AJ, Baeyens JP, Bauer JM, Boirie Y, Cederholm T, Landi F, European Working Group on Sarcopenia in Older People et al (2010) Sarcopenia: European consensus on definition and diagnosis: report of the European Working Group on Sarcopenia in Older People. Age Ageing 39:412–423PubMedCrossRefGoogle Scholar
- 14.World Health Organisation (1998) Obesity: preventing and managing the global epidemic. World Health Organisation, Geneva, Technical Report Series 894Google Scholar
- 20.Fitti JE, Kovar M (1997) The supplement on aging to the 1984 national health interview survey. Vital Health Stat 1:1–115Google Scholar
- 27.Baumgartner RN (1999) Errata. Re: Epidemiology of sarcopenia among the elderly in New Mexico. Am J Epidemiol 149:1161Google Scholar
- 39.Instituto Brasileiro de Geografia e Estatística (2011) Censo 2010: Brazil Available at http://www.ibge.gov.br/censo, Accessed 20 March 2011
- 40.Scazufca M, Menezes PR, Araya R, Di Rienzo VD, Almeida OP, Gunnell D, Sao Paulo Ageing & Health Study et al (2008) Risk factors across the life course and dementia in a Brazilian population: results from the São Paulo Ageing & Health Study (SPAH). Int J Epidemiol 37:879–890PubMedCrossRefGoogle Scholar