Body mass index

[mahantesh]

Hi all

I have patient's weight (Kgs) in one column and theier height in
centimetres in next column.

Now I want to create a formula by using SPSS, i.e.

Body mass index = Weight(Kg)/(Height in metre)square.

For example if pt's weight is 65 kgs and her height is 1.65 cms, then
the formula would be 65/(1.65)²=23.9

If any one has suggestion regarding

how to convert centimetre to metre and

then create a formula in SPSS for calculation of BMI would be greatly
appreciated.

Mahantesh
UCL UK

[Art Kendall]

If you mean that her height is 165 cm (5'5") which would be plausible
for 65kg (143 lb).

compute bmi = weight / ((height/100)**2) .

Art
A...@DrKendall.org
Social Research Consultants
University Park, MD USA
(301) 864-5570

[Sam]

A linear regression on a bmi vs height & weight table for men/women gives these coefficients:

Coefficients

			Unstandardized Coefficients		Standardized Coefficients	t	Sig.	Correlations
			B	Std. Error	Beta			Zero-order	Partial	Part
Model	1	(Constant)	50.823	.769		66.056	.000
		Weight	.151	.003	1.675	57.294	.000	.578	.984	.984
		Height, cm	-.294	.006	-1.356	-46.369	.000	.000	-.976	-.796

a Dependent Variable: Body Mass Index

Therefore, a formula can be:

            bmi(men/women) = 50.823 +.151*weight(lbs) -.294*height(cm)

 

"Art Kendall" <A...@DrKendall.org> wrote in message news:4068340C...@DrKendall.org...

If you mean that her height is 165 cm (5'5") which would be plausible
for 65kg (143 lb).

compute bmi = weight / ((height/100)**2) .

Art
A...@DrKendall.org
Social Research Consultants
University Park, MD  USA
(301) 864-5570



mahantesh wrote:
> Hi all
>
> I have patient's weight (Kgs) in one column and theier height in
> centimetres in next column.
>
> Now I want to create a formula by using SPSS, i.e.
>
> Body mass index = Weight(Kg)/(Height in metre)square.
>
> For example if pt's weight is 65 kgs and her height is 1.65 cms, then

> the formula would be 65/(1.65)=23.9

[Moshe Braner]

On Tue, 30 Mar 2004 00:03:45 GMT, Sam <s...@hotmail.com> wrote:

> A linear regression on a bmi vs height & weight table for men/women

> gives these coefficients: ...

> Therefore, a formula can be:
> bmi(men/women) = 50.823 +.151*weight(lbs) -.294*height(cm)

Very bad idea. The BMI is DEFINED as a value computed from the height and
weight, via a NON-LINEAR formula: weight divided by height-squared.
That's easy to compute, the only
slightly tricky issue is to get the units straight. They're supposed to
be meters and kg.
If you have other units, look up the conversion factors, they're easy to
find...

- Moshe

[Sam]

The linear model presented here has a correlation coef=0.97

"Moshe Braner" <mbr...@hotmail.com> wrote in message news:opr5onn6...@news.state.vt.us...