Abstract

 
 
 
 Introduction: Since 2017, number of studies involving nutritional status of adolescents using a novel parameter named tri-ponderal mass index (TMI) is soaring high. The concept of TMI was formulated to substitute body mass index (BMI) in case of adolescent population. The present study aims to find TMI values of school-going adolescent girls (aged 10 to 19 years). It also aims to compare the association of TMI and BMI with mid-upper arm circumference (MUAC) of the subjects.
 Methods: Height, weight and MUAC were measured using standard procedures. The BMI and TMI were accordingly calculated. The data obtained was tabulated to elucidate age-wise descriptive statistics. Quadratic polynomial regression was employed to yield a general conclusion regarding association of TMI and BMI with MUAC of the subjects. Receiver operating characteristic (ROC) curve was plotted to check which of the two indices, BMI or TMI, has better ability to predict higher MUAC of the subjects.
 Results: The ROC-area under curve (AUC) was 0.867 and 0.955 for TMI and BMI respectively.
 Conclusion: BMI has better association with MUAC. In comparison to TMI, BMI has superior ability in predicting higher MUAC of the subjects.
 
 
 
Highlights
Since 2017, number of studies involving nutritional status of adolescents using a novel parameter named tri-ponderal mass index (TMI) is soaring high
Receiver operating characteristic (ROC) curve was plotted to check which of the two indices, body mass index (BMI) or TMI, has better ability to predict higher mid-upper arm circumference (MUAC) of the subjects
The present cross-sectional study was conducted among 469 school-going adolescent girls belonging to the Bengalee Hindu Caste Population (BHCP) and residing in Siliguri town, West Bengal, India
Summary
Since 2017, number of studies involving nutritional status of adolescents using a novel parameter named tri-ponderal mass index (TMI) is soaring high. Body Mass Index (BMI) was originally developed by Lambert Adolphe Jacque Quetelet in the year 1832 and was named as Quetelet Index {later renamed as Body Mass Index in 1972 by Ancel Keys (1904–2004)}.1 It has been formulated based on the finding that normal body weight in kilograms was proportional to the square of the height in meters.[2] This was formulated for adults as Quetelet noted that the body mass relationship to height in normal young adults was least affected by height when the ratio of weight to height squared was used rather than other equations developed at that period.[3] this was supposed to be ruled out in case of adolescents. Cole showed that ‘p’ rises from age five to 12 years by differentiating the National
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