TY - JOUR
T1 - An anthropometry-based equation of fat mass percentage as a valid discriminator of obesity
AU - Castro-Porras, Lilia V.
AU - Rojas-Russell, Mario E.
AU - Villanueva-Sánchez, Javier
AU - López-Cervantes, Malaquías
N1 - Publisher Copyright:
© 2019 The Authors.
PY - 2019/5/1
Y1 - 2019/5/1
N2 - Objective: To develop a new predictive equation for fat mass percentage (%FM) based on anthropometric measurements and to assess its ability to discriminate between obese and non-obese individuals. Design: Cross-sectional study. Setting: Mexican adults. Participants: Adults (n 275; 181 women) aged 20-63 years with BMI between 17.4 and 42.4 kg/m 2 . Results: Thirty-seven per cent of our sample was obese using %FM measured by air-displacement plethysmography (BOD POD®; Life Measurement Instruments). The fat mass was computed from the difference between weight and fat-free mass (FFM). FFM was estimated using an equation obtained previously in the study from weight, height and sex of the individuals. The %FM estimated from the obtained FFM showed a sensitivity of 90.3 (95 % CI 86.8, 93.8) % and a specificity of 58.0 (95 % CI 52.1, 63.8) % in the diagnosis of obesity. Ninety-three per cent of participants with obesity and 65 % of participants without obesity were correctly classified. Conclusions: The anthropometry-based equation obtained in the present study could be used as a screening tool in clinical and epidemiological studies not only to estimate the %FM, but also to discriminate the obese condition in populations with similar characteristics to the participant sample.
AB - Objective: To develop a new predictive equation for fat mass percentage (%FM) based on anthropometric measurements and to assess its ability to discriminate between obese and non-obese individuals. Design: Cross-sectional study. Setting: Mexican adults. Participants: Adults (n 275; 181 women) aged 20-63 years with BMI between 17.4 and 42.4 kg/m 2 . Results: Thirty-seven per cent of our sample was obese using %FM measured by air-displacement plethysmography (BOD POD®; Life Measurement Instruments). The fat mass was computed from the difference between weight and fat-free mass (FFM). FFM was estimated using an equation obtained previously in the study from weight, height and sex of the individuals. The %FM estimated from the obtained FFM showed a sensitivity of 90.3 (95 % CI 86.8, 93.8) % and a specificity of 58.0 (95 % CI 52.1, 63.8) % in the diagnosis of obesity. Ninety-three per cent of participants with obesity and 65 % of participants without obesity were correctly classified. Conclusions: The anthropometry-based equation obtained in the present study could be used as a screening tool in clinical and epidemiological studies not only to estimate the %FM, but also to discriminate the obese condition in populations with similar characteristics to the participant sample.
KW - BMI
KW - Body composition
KW - Discriminant analysis
KW - Fat mass
KW - Obesity
KW - Prediction equations
UR - http://www.scopus.com/inward/record.url?scp=85061627117&partnerID=8YFLogxK
U2 - 10.1017/S1368980018004044
DO - 10.1017/S1368980018004044
M3 - Artículo
C2 - 30767821
SN - 1368-9800
VL - 22
SP - 1250
EP - 1258
JO - Public Health Nutrition
JF - Public Health Nutrition
IS - 7
ER -