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unit of measurement [message #10490]

Fri, 29 July 2016 12:03

sultanatonni@gmail.com is currently offline

sultanatonni@gmail.com
Messages: 4
Registered: July 2016

Member

Dear sir/Madam
Please let me know what is the unit of measurement of BMI(body mass index) from women file(IR)

Thanks in advance

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Re: unit of measurement [message #10492 is a reply to message #10490]

Fri, 29 July 2016 13:57

Bridgette-DHS
Messages: 3208
Registered: February 2013

Senior Member

Following is a response from Senior DHS Stata Specialist, Tom Pullum:

BMI is measured in units of kilograms divided by (meters squared). For example, if someone is 2 meters tall (6 ft. 6.74 inches) and weighs 100 kg (220.462 pounds) then their BMI is 100/(2 squared) = 100/4=25. See http://www.nhlbi.nih.gov/health/educational/lose_wt/BMI/bmic alc.htm, for example.

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Re: unit of measurement [message #10498 is a reply to message #10492]

Sat, 30 July 2016 10:08

sultanatonni@gmail.com
Messages: 4
Registered: July 2016

Member

Actually, I need to know in women file(IR), the variable v445 indicate body mass index which data contain four digit value, what is the unit of measurement of this four digit value?

Thanks in advance

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Re: unit of measurement [message #10511 is a reply to message #10498]

Mon, 01 August 2016 09:32

Bridgette-DHS
Messages: 3208
Registered: February 2013

Senior Member

Another response from Tom Pullum:

V445 is actually the BMI multiplied by 100. Sorry for ignoring that factor. Most of the anthropometry numbers in the data file have a factor of some power of 10. You need to divide by 100 to get the BMI. The units of measurement are as I described them, weight / height squared, with weight in kilograms and height in meters.

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