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Body Mass Index (BMI)
[select name="Height_ft" value="|1|2|3|4|5|6|7"]’ [select name="Height_in" value="|1|2|3|4|5|6|7|8|9|10|11"]”
[calc value="Height=((Height_ft)*(12))+(Height_in)"]
[text name="Weight"] <-- Weight in pounds
BMI Calculations
Class --> [calc memo="class" value="score=(Weight)*(703)/((Height)*(Height));score>59.9999?'Super-super obesity or class V obesity':score>49.9999?'Super-obesity or class IV obesity':score>39.9999?'Extreme obesity or class III obesity':score>34.9999?'Obesity class II':score>29.9999?'Obesity class I':score>24.9999?'Overweight':score>18.4999?'Normal':score>16.4999?'Underweight':'Severely underweight'"]
BMI --> [calc memo="bmi" value="score1=score.toFixed(1)"]

[checkbox memo="display/hide references" name="footnotes" value=""][conditional field="footnotes" condition="(footnotes).is('')"]
reference:
Obesity Evidence at [link url="http://www.aafp.org/afp/2010/1015/p974.html" memo="#1"] Delaet (2010) Am Fam Physician 82:974-5[/conditional]
Body Mass Index (BMI)

Height=((Height_ft)*(12))+(Height_in)
<-- Weight in pounds
BMI Calculations
Class --> classscore=(Weight)*(703)/((Height)*(Height));score>59.9999?'Super-super obesity or class V obesity':score>49.9999?'Super-obesity or class IV obesity':score>39.9999?'Extreme obesity or class III obesity':score>34.9999?'Obesity class II':score>29.9999?'Obesity class I':score>24.9999?'Overweight':score>18.4999?'Normal':score>16.4999?'Underweight':'Severely underweight'
BMI --> bmiscore1=score.toFixed(1)

display/hide references

Result - Copy and paste this output: