6th European Congress on Obesity 1995

Differences among Diabetic &

Non-Diabetic persons, concerning

Body Fat Distribution assessed

by

CONICITY INDEX.

6th European Congress on Obesity 1995

E. Kapantais, E. Papadimitriou,K. Vendiadi, E. Manglara,

K. Kofotzouli, M. Marangosand N. Katsilambros.

1st Dpt. Propaedeutic MedicineAthens’ University Medical School

“Laikon” General HospitalAthens - GREECE

6th European Congress on Obesity 1995

Background:

It is well established that excess body fat around the abdomen is

related to several metabolic disorders and mainly to type-2 Diabetes

Mellitus (NIDDM).

The most accurate technique for assessing abdominal fat mass, Axial

Computerized Tomography (ACT), is costly and time-consuming.

Anthropometry could be a valid alternative to ACT for the evaluatin of

fat distribution. However, current anthropometric indicators of obesity

have several limitations.

CONICITY INDEX implies that abdominal obesity is modelled as the

progression of a body from cylindrical shape toward the shape of 2 cones

with a common base at the waist level. This geometric approach expressed

with the formula: CONICITY INDEX = abdominal girth

0.109(weight/height)½

With this new index, the abdominal girths of persons of the same

height and weight are referred to the same standard value for comparison.

6th European Congress on Obesity 1995

Aim:

To assess the Conicity Index values

in a group of NIDDM, aged 50-65

years, as compared to Controls.

To study the correlation between

CONICITY INDEX and WHR

in NIDDM and Controls.

6th European Congress on Obesity 1995

SUBJECTS & METHODS:

Subjects: Age: 50 - 65 years.86 Controls (53 males - 33 females) &

64 Type-2 Diabetics (33 males - 31 females).

Measurements:Weight, Height, Abdominal Girth,

Waist circumference, Hip circumference.

Calculation:1) BMI= Weight / Height2

2) WHR= Waist circumference / Hip circumference3) CONICITY INDEX= Abdominal Girth

0.109* (Weight / Height)½

6th European Congress on Obesity 1995

RESULTS:

Males and Females

CONICITY INDEX mean values.

F M

Males : 1.316 ± 0.081M ± SD

Females : 1.252 ± 0.112

6th European Congress on Obesity 1995

1 2 3 4

24

25

26

27

28

29

30

28.25 28.3

29.39

26.66

AÓ‰ Ú :̃ ¢È·‚ËÙÈÎÔ› - M¿ÚÙ×Ú ̃ ## °×Ó·›Î :̃ ¢È·‚ËÙÈ΀˜ - M¿ÚÙ×Ú˜

*

* p =0.025

Mean BMI values.

MALES FEMALES

NIDDM Controls ### NIDDM Controls

6th European Congress on Obesity 1995

§

Mean Conicity Index & WHR values

WHR CONICITY INDEX

MALES:

NIDDM # Controls

FEMALES:

NIDDM # Controls

* p=0.002§ p=0.001*

§

6th European Congress on Obesity 1995

Conicity Index values,

in Males and Females, NIDDM and Controls.

0 1

1.0

1.1

1.2

1.3

1.4

1.5

1.6

**

*

*

*

0 1

1.0

1.1

1.2

1.3

1.4

1.5

*

MALES FEMALES

Controls # NIDDM Controls # NIDDM

6th European Congress on Obesity 1995

Correlation between Conicity Index & WHR

in Males and Females.

1.0 1.1 1.2 1.3 1.4 1.5 1.6

0.7

0.8

0.9

1.0

1.1

1.2

W

H

R

Conicity Index

r=0.78, p=0.000

1.0 1.1 1.2 1.3 1.4 1.5

0.7

0.8

0.9

1.0

1.1

W

H

R

Conicity Index

r=0.74, p=0.000

MALES FEMALES

6th European Congress on Obesity 1995

Correlation between Conicity Index and WHR

in Females with NIDDM & Controls.

1.0 1.1 1.2 1.3 1.4 1.5

0.7

0.8

0.9

1.0

W

H

R

Conicity Index

r=0.58, p=0.001

Controls

1.0 1.1 1.2 1.3 1.4 1.5

0.7

0.8

0.9

1.0

1.1

W

H

R

Conicity Index

r=0.80, p=0.000

NIDDM

6th European Congress on Obesity 1995

Correlation between Conicity Index and WHR

in Males with NIDDM & Controls.

1.0 1.1 1.2 1.3 1.4 1.5 1.6

0.7

0.8

0.9

1.0

1.1

1.2

1.0 1.1 1.2 1.3 1.4 1.5

0.8

0.9

1.0

1.1

W

H

R

Conicity Index

r=0.66, p=0.000

NIDDM

W

H

R

Conicity Index

r=0.87, p=0.000

Controls

6th European Congress on Obesity 1995

CONCLUSIONS:

In persons aged 50-65 years:

Women with NIDDM present

similar Body Fat Distribution,

as men with NIDDM.

Conicity Index is

closely related to WHR.