- EpiData-list - University of Manitoba Mailing Lists

Re : EpiData-list Digest, Vol 42, Issue 14
by epidata-list＠lists.umanitoba.ca 26 Apr '07

26 Apr '07

bonjour veullez ne plus m'envoyer de messages!!!merci ----- Message d'origine ---- De : "epidata-list-request(a)lists.umanitoba.ca" <epidata-list-request(a)lists.umanitoba.ca> À : epidata-list(a)lists.umanitoba.ca Envoyé le : Mardi, 24 Avril 2007, 19h03mn 39s Objet : EpiData-list Digest, Vol 42, Issue 14 Send EpiData-list mailing list submissions to epidata-list(a)lists.umanitoba.ca To subscribe or unsubscribe via the World Wide Web, visit http://lists.umanitoba.ca/mailman/listinfo/epidata-list or, via email, send a message with subject or body 'help' to epidata-list-request(a)lists.umanitoba.ca You can reach the person managing the list at epidata-list-owner(a)lists.umanitoba.ca When replying, please edit your Subject line so it is more specific than "Re: Contents of EpiData-list digest..." EpiData-list mailing list ___________________________________ Today's Topics: 1. Is there any way to import from Excel to EpiData? (epidata-list(a)lists.umanitoba.ca) 2. Re: Is there any way to import from Excel to EpiData? (epidata-list(a)lists.umanitoba.ca) ---------------------------------------------------------------------- Message: 1 Date: Tue, 24 Apr 2007 10:48:18 +0200 From: epidata-list(a)lists.umanitoba.ca Subject: [EpiData-list] Is there any way to import from Excel to EpiData? To: <epidata-list(a)lists.umanitoba.ca> Message-ID: <939234DEF7B61C48B044D11A67E61B748A3EDE(a)mdmexch.medecinsdumonde.net> Content-Type: text/plain; charset=iso-8859-1 Hello everyone. I understand from the user manuals that data can be imported from text, dbase, and STATA. Has anyone figured out a way to import an Excel database, even though technically it is not an option? Thank you Todd Services Technique d'Appui aux Opérations (STAO) Médecins du Monde - France 62 rue Marcadet 75018 Paris - France Tél: +33 (0)1 44 92 16 18 ------------------------------ Message: 2 Date: Tue, 24 Apr 2007 05:41:32 -0700 (PDT) From: epidata-list(a)lists.umanitoba.ca Subject: Re: [EpiData-list] Is there any way to import from Excel to EpiData? To: epidata-list(a)lists.umanitoba.ca Message-ID: <467108.92422.qm(a)web43141.mail.sp1.yahoo.com> Content-Type: text/plain; charset=iso-8859-1 You can save the Excel file as a .dbf file, then import the .dbf file into Epidata. I assume you'll need to add variable names in the first row of the Excel file. Richard Herrell NIMH epidata-list(a)lists.umanitoba.ca wrote: Hello everyone. I understand from the user manuals that data can be imported from text, dbase, and STATA. Has anyone figured out a way to import an Excel database, even though technically it is not an option? Thank you Todd Services Technique d'Appui aux Opérations (STAO) Médecins du Monde - France 62 rue Marcadet 75018 Paris - France Tél: +33 (0)1 44 92 16 18 _______________________________________________ EpiData-list mailing list EpiData-list(a)lists.umanitoba.ca http://lists.umanitoba.ca/mailman/listinfo/epidata-list --------------------------------- Ahhh...imagining that irresistible "new car" smell? Check outnew cars at Yahoo! Autos. ------------------------------ ________________________________________ EpiData-list(a)lists.umanitoba.ca http://lists.umanitoba.ca/mailman/listinfo/epidata-list End of EpiData-list Digest, Vol 42, Issue 14 ******************************************** ___________________________________________________________________________ Découvrez une nouvelle façon d'obtenir des réponses à toutes vos questions ! Profitez des connaissances, des opinions et des expériences des internautes sur Yahoo! Questions/Réponses http://fr.answers.yahoo.com

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Is there any way to import from Excel to EpiData?
by epidata-list＠lists.umanitoba.ca 25 Apr '07

25 Apr '07

Hello everyone. I understand from the user manuals that data can be imported from text, dbase, and STATA. Has anyone figured out a way to import an Excel database, even though technically it is not an option? Thank you Todd Services Technique d'Appui aux Opérations (STAO) Médecins du Monde - France 62 rue Marcadet 75018 Paris - France Tél: +33 (0)1 44 92 16 18

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Anyone working on EpiData in Johannesburg
by epidata-list＠lists.umanitoba.ca 22 Apr '07

22 Apr '07

Hi, I wrote introductory guideline for EpiData at Karolinska Institute, Stockholm. Now I am in Johannesburg for data collection, will spend around 10 months here. People working in bioinformatics are interested in learning more about EpiData and was asked to present about database. Anyone living in Johannesburg and interested in joining to teach EpiData? Best regards ziad -- Ziad El-Khatib AIDS Unit National Institute for Communicable Diseases (NICD) 1 Modderfontein Road Private Bag X4, Sandringham, 2131 Johannesburg, South Africa Mobile: +27 (0) 72-52 39 716 Phone: +27 (0) 11-386 6433 Fax: +27 (0)11 386 6453 http://www.nhls.ac.za/div_nicd.html Division of International Health (IHCAR) Karolinska Institutet www.phs.ki.se/ihcar

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Re: Defining confidence intervals in analysis
by epidata-list＠lists.umanitoba.ca 19 Apr '07

19 Apr '07

> > >I would like to know how one could change the confidence Interval (CI) > to reflect 90% instead of 95% which I assume is the default. I am > working in Epidata Analysis V2.0 (build 108). > > The command "set table CI HEADER="(90% CI)" only changes the text in the tables, not the calculation. Until now the statistics have NOT been adapted to other confidence intervals than 95%. For a given table it should be quite easy though given you have the raw numbers. Enter these into e.g. www.openepi.com and get the desired 90% CI. For analysis the possibility of users defining CI (e.g. 90 95 99) could be implemented within the next few years. Just now for the v2 of EpiData Analysis we are working on some "subtle" internal issues, which is why seemingly very little progress was made recently. The implementation of the Upper Case fields <AAAAA> revealed need for quite many changes, since all internal parts were made only for uppercase handling. The problems mentioned in the Mantis database and on the www.epidata.dk/testing.php page that the latest test build does not save data properly has been solved. Regards Jens Lauritsen EpiData Association

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Confidence intervals and stats
by epidata-list＠lists.umanitoba.ca 19 Apr '07

19 Apr '07

Hi again I sent a request on the this earlier but I don't know if everyone was on holiday because I didn't get any response:-)! So I am trying again! I would like to know how one could change the confidence Interval (CI) to reflect 90% instead of 95% which I assume is the default. I am working in Epidata Analysis V2.0 (build 108). If one uses the command: Set TABLE CI HEADER="(90% CI)", it does change the header to reflect 90% but the actual CI values still stays the same. I also need to get the Fischer Exact p value, as well as the CI values as part of my table output. I looked in the help function and the command options do not seem to match up with the explanations. There is supposed to be an option that says 'add an extra table with a summary of chi square, p values etc' but I can't find the appropriate command on the LHS. I have been able to get the Fischer's exact p by using the command /EX but the command /CI didn't give me any confidence intervals. Please let me know if there is a flaw in my logic as I am not a stats expert. Thanks. Regards Juanette John -- This message is subject to the CSIR's copyright, terms and conditions and e-mail legal notice. Views expressed herein do not necessarily represent the views of the CSIR. CSIR E-mail Legal Notice http://mail.csir.co.za/CSIR_eMail_Legal_Notice.html CSIR Copyright, Terms and Conditions http://mail.csir.co.za/CSIR_Copyright.html For electronic copies of the CSIR Copyright, Terms and Conditions and the CSIR Legal Notice send a blank message with REQUEST LEGAL in the subject line to CallCentre(a)csir.co.za. This message has been scanned for viruses and dangerous content by MailScanner, and is believed to be clean.

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Re: common site for teaching/training materials
by epidata-list＠lists.umanitoba.ca 19 Apr '07

19 Apr '07

AS some of you might have noticed I have already defined an open EpiData site - in the form of a wiki - where some experiences on using this technology already exist. The www.epidata.org site has been reserved by me a few years back with the intention that this could serve as the "community" site for EpiData, maintained collectively by the body of epidata users. Pedro Arias and I created teaching material for use in the Canadian Field Epi course last autumn. Off list I have suggested to a number of users mentioning materials to add these to the site, but the time and energy to get onto a new way of working can be difficult to find for already busy people. If the material already exist it is quite easy to copy and paste into the wiki and upload the figures/images. The experimental site is found at http://www.epidata.org/wiki There is some learning problems in the beginning when editing in the wiki format, but with a few experiments it works very well. An introduction is shown at http://en.wikipedia.org/wiki/Wikipedia:How_to_edit_a_page The optimal would be that a group of persons together take on the responsibility of maintaining the open site, since we must unfortunately expect that someone will add irrelevant material or suggestions which otherwise are not appropriate. The initial steps of forming such a group has been made, but awaits further initiatives. Kind regards Jens Lauritsen -- Jens Lauritsen Coordinator and initiator of EpiData Project http://www.epidata.dk

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Re: AW: [EpiData-list] BMI Calculation
by epidata-list＠lists.umanitoba.ca 18 Apr '07

18 Apr '07

Thanks for the link. I was interested to see the Epidata training materials on this site and also the ones now on the Epidata website. I'd be very interested in any other links. I'm especially interested in materials that deal with outbreaks so it was great to see the case study about Tiramisu on the epidata website - but that only deals with the analysis side. (Here we use Epidata for our questionnaires and data entry but use Epi Info for analysis). I've done a training manual for our public health staff about using Epidata and have an outbreak case study exercise that uses epidata and epi info, but have not made on line versions yet. I would be interested in talking to others - perhaps off line about materials they use for epidata training. thanks again Christine Christine Roseveare Analyst Regional Public Health 570 9194 027 495 9671 >>> <epidata-list(a)lists.umanitoba.ca> 13/04/2007 5:26 p.m. >>> Have a look at the many available documentations on the web. A similar thing (calculating age from date of birth) is included on page 6 of a very useful intro (A brief overview of EpiData software) to be found on http://www.tbrieder.org/ (follow icon to "Revised EpiData course") marcel -----Ursprüngliche Nachricht----- Von: epidata-list(a)lists.umanitoba.ca [mailto:epidata-list@lists.umanitoba.ca] Gesendet: Donnerstag, 12. April 2007 14:13 An: epidata-list(a)lists.umanitoba.ca Betreff: [EpiData-list] BMI Calculation Thanks. I just recently started using Epidata, and I need some help on creating a Check string for automatically calculating BMI using Weight and Height (in pounds and feet/inches). Thanks, again. -- Ali B. Mansaray MANSA Consulting Services 6530 Davidson Road Columbia, SC 29209 803-381-6864 ali.mansaray(a)gmail.com -- The information contained in this email and any attachments is confidential and may be legally privileged. If you have received this message in error, please notify the sender immediately and remove all copies of the message, including any attachments. Any views or opinions expressed in this email (unless otherwise stated) may not represent those of Hutt Valley DHB. Thank you. ** Disclaimer added by HVDHB **

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Re: EpiData-list Digest, Vol 42, Issue 7
by epidata-list＠lists.umanitoba.ca 17 Apr '07

17 Apr '07

Dear Hans, Your program was quick and efficient. It did it! Thank you for your help. Ali On 4/14/07, epidata-list-request(a)lists.umanitoba.ca < epidata-list-request(a)lists.umanitoba.ca> wrote: > > Send EpiData-list mailing list submissions to > epidata-list(a)lists.umanitoba.ca > > To subscribe or unsubscribe via the World Wide Web, visit > http://lists.umanitoba.ca/mailman/listinfo/epidata-list > or, via email, send a message with subject or body 'help' to > epidata-list-request(a)lists.umanitoba.ca > > You can reach the person managing the list at > epidata-list-owner(a)lists.umanitoba.ca > > When replying, please edit your Subject line so it is more specific > than "Re: Contents of EpiData-list digest..." > > > EpiData-list mailing list > ___________________________________ > > Today's Topics: > > 1. BMI from US measures (epidata-list(a)lists.umanitoba.ca) > > > ---------------------------------------------------------------------- > > Message: 1 > Date: Sat, 14 Apr 2007 00:25:35 +0200 > From: epidata-list(a)lists.umanitoba.ca > Subject: [EpiData-list] BMI from US measures > To: epidata-list(a)lists.umanitoba.ca > Message-ID: <4620035F.20600(a)tbrieder.org> > Content-Type: text/plain; charset=ISO-8859-1; format=flowed > > If you do not wish to show conversion of US measures into SI units in > the QES file, then your QES file should have this: > > *.QES file > wtpd Weight in US pounds ###.# > htft Height in US feet # > htin Height in US inches ## > bmi Body Mass Index in kg/m^2 ##.# > > You then make all your calculations in the CHK file to get the BMI in SI > units: > > *.CHK file > * Definitions from Wikipedia > * 1 US foot=(1200/3937) meters > * 1 US inch=25.4 millimeters > * 1 US pound= 453.59237 grams > > wtpd > MUSTENTER > END > > htft > MUSTENTER > END > > htin > MUSTENTER > AFTER ENTRY > bmi=(wtpd*0.45359237)/((htft*(1200/3937)+(htin*0.0254))^2) > END > END > > bmi > NOENTER > END > > > and that should do it. Beware of empty fields contributing to the > denominator. Should that be the case, you must make provisions in the > CHK file. The above works only if there are no zeros for the two > denominator variables, and not permitting any blank fields. > > Hans > > -- > Hans L Rieder, MD, MPH > Jetzikofenstr. 12 > 3038 Kirchlindach > Switzerland > > Tel: +41 31 829 4577 > Mob: +41 79 321 9122 > Web: http://www.tbrieder.org > > > > > ------------------------------ > > ________________________________________ > EpiData-list(a)lists.umanitoba.ca > http://lists.umanitoba.ca/mailman/listinfo/epidata-list > > > End of EpiData-list Digest, Vol 42, Issue 7 > ******************************************* > -- Ali B. Mansaray MANSA Consulting Services 6530 Davidson Road Columbia, SC 29209 803-381-6864 ali.mansaray(a)gmail.com a

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BMI Calculation Suggestions
by epidata-list＠lists.umanitoba.ca 16 Apr '07

16 Apr '07

Thanks ever so much Pedro, Richard and Marcel. I was away and just returned. I am sure your suggestions and insights will amply address my my question. Regards, Ali On 4/13/07, epidata-list-request(a)lists.umanitoba.ca < epidata-list-request(a)lists.umanitoba.ca> wrote: > > Send EpiData-list mailing list submissions to > epidata-list(a)lists.umanitoba.ca > > To subscribe or unsubscribe via the World Wide Web, visit > http://lists.umanitoba.ca/mailman/listinfo/epidata-list > or, via email, send a message with subject or body 'help' to > epidata-list-request(a)lists.umanitoba.ca > > You can reach the person managing the list at > epidata-list-owner(a)lists.umanitoba.ca > > When replying, please edit your Subject line so it is more specific > than "Re: Contents of EpiData-list digest..." > > > EpiData-list mailing list > ___________________________________ > > Today's Topics: > > 1. Re: EpiData-list Digest, Vol 42, Issue 5 > (epidata-list(a)lists.umanitoba.ca) > 2. Re: Re: EpiData-list Digest, Vol 42, Issue 5 > (epidata-list(a)lists.umanitoba.ca) > 3. AW: [EpiData-list] BMI Calculation > (epidata-list(a)lists.umanitoba.ca) > > > ---------------------------------------------------------------------- > > Message: 1 > Date: Thu, 12 Apr 2007 15:39:31 -0300 > From: epidata-list(a)lists.umanitoba.ca > Subject: [EpiData-list] Re: EpiData-list Digest, Vol 42, Issue 5 > To: epidata-list(a)lists.umanitoba.ca > Message-ID: > <a37cfb5a0704121139lba5854ex3941892ba45d43a1(a)mail.gmail.com> > Content-Type: text/plain; charset=ISO-8859-1; format=flowed > > Dear Ali, > > It seems to be a simple task. First, as far as I know the BMI is > calculated > as weight/(heigh*heigh). However this values should be in Kg and m. If you > have the data in pounds and feet, then youl should transform them before. > To > make it easier, create a variable in the qes file with this information. > > qes file > > v1 heigh in feet ##.# > v2 heigh in m #.## > v3 weight in pound ###.## > v4 weight in Kg ###.# > v5 bmi ##.## > > chk file > > v1 > after entry > let v2 = round(v1*0,4536) > end > end > > v2 > noenter > end > > v3 > after entry > let v4=round(v3/3,28) > end > end > > v4 > noenter > end > > v5 > before entry > let v5=v4/(v2*v2) > goto v6 > end > end > > I hope this works fine for you because didnt test it! ;) > > Succes, > Pedro Emmanuel Brasil > > 2007/4/12, epidata-list-request(a)lists.umanitoba.ca < > epidata-list-request(a)lists.umanitoba.ca>: > > > > Send EpiData-list mailing list submissions to > > epidata-list(a)lists.umanitoba.ca > > > > To subscribe or unsubscribe via the World Wide Web, visit > > http://lists.umanitoba.ca/mailman/listinfo/epidata-list > > or, via email, send a message with subject or body 'help' to > > epidata-list-request(a)lists.umanitoba.ca > > > > You can reach the person managing the list at > > epidata-list-owner(a)lists.umanitoba.ca > > > > When replying, please edit your Subject line so it is more specific > > than "Re: Contents of EpiData-list digest..." > > > > > > EpiData-list mailing list > > ___________________________________ > > > > Today's Topics: > > > > 1. BMI Calculation (epidata-list(a)lists.umanitoba.ca) > > > > > > ---------------------------------------------------------------------- > > > > Message: 1 > > Date: Thu, 12 Apr 2007 08:12:37 -0400 > > From: epidata-list(a)lists.umanitoba.ca > > Subject: [EpiData-list] BMI Calculation > > To: epidata-list(a)lists.umanitoba.ca > > Message-ID: > > <9aeb5bc30704120512q55329040pc02a85328844f8d1(a)mail.gmail.com> > > Content-Type: text/plain; charset=ISO-8859-1; format=flowed > > > > Thanks. > > I just recently started using Epidata, and I need some help on creating > a > > Check string for automatically calculating BMI using Weight and Height > (in > > pounds and feet/inches). Thanks, again. > > > > > > > > -- > > Ali B. Mansaray > > MANSA Consulting Services > > 6530 Davidson Road > > Columbia, SC 29209 > > 803-381-6864 > > ali.mansaray(a)gmail.com > > > > > > ------------------------------ > > > > ________________________________________ > > EpiData-list(a)lists.umanitoba.ca > > http://lists.umanitoba.ca/mailman/listinfo/epidata-list > > > > > > End of EpiData-list Digest, Vol 42, Issue 5 > > ******************************************* > > > > > ------------------------------ > > Message: 2 > Date: Thu, 12 Apr 2007 11:56:52 -0700 (PDT) > From: epidata-list(a)lists.umanitoba.ca > Subject: Re: [EpiData-list] Re: EpiData-list Digest, Vol 42, Issue 5 > To: epidata-list(a)lists.umanitoba.ca > Message-ID: <797297.78297.qm(a)web43146.mail.sp1.yahoo.com> > Content-Type: text/plain; charset=iso-8859-1 > > > I useful little trick I picked up for us crazy Americans who insist on > using inches and pounds: Calculate pounds/(height in inches)^2. Multiple > the result by 703.0814 (or however precise you want the result) and you > have BMI. > > Richard Herrell > NIMH > > > epidata-list(a)lists.umanitoba.ca wrote: Dear Ali, > > It seems to be a simple task. First, as far as I know the BMI is > calculated > as weight/(heigh*heigh). However this values should be in Kg and m. If you > have the data in pounds and feet, then youl should transform them before. > To > make it easier, create a variable in the qes file with this information. > > qes file > > v1 heigh in feet ##.# > v2 heigh in m #.## > v3 weight in pound ###.## > v4 weight in Kg ###.# > v5 bmi ##.## > > chk file > > v1 > after entry > let v2 = round(v1*0,4536) > end > end > > v2 > noenter > end > > v3 > after entry > let v4=round(v3/3,28) > end > end > > v4 > noenter > end > > v5 > before entry > let v5=v4/(v2*v2) > goto v6 > end > end > > I hope this works fine for you because didnt test it! ;) > > Succes, > Pedro Emmanuel Brasil > > 2007/4/12, epidata-list-request(a)lists.umanitoba.ca < > epidata-list-request(a)lists.umanitoba.ca>: > > > > Send EpiData-list mailing list submissions to > > epidata-list(a)lists.umanitoba.ca > > > > To subscribe or unsubscribe via the World Wide Web, visit > > http://lists.umanitoba.ca/mailman/listinfo/epidata-list > > or, via email, send a message with subject or body 'help' to > > epidata-list-request(a)lists.umanitoba.ca > > > > You can reach the person managing the list at > > epidata-list-owner(a)lists.umanitoba.ca > > > > When replying, please edit your Subject line so it is more specific > > than "Re: Contents of EpiData-list digest..." > > > > > > EpiData-list mailing list > > ___________________________________ > > > > Today's Topics: > > > > 1. BMI Calculation (epidata-list(a)lists.umanitoba.ca) > > > > > > ---------------------------------------------------------------------- > > > > Message: 1 > > Date: Thu, 12 Apr 2007 08:12:37 -0400 > > From: epidata-list(a)lists.umanitoba.ca > > Subject: [EpiData-list] BMI Calculation > > To: epidata-list(a)lists.umanitoba.ca > > Message-ID: > > <9aeb5bc30704120512q55329040pc02a85328844f8d1(a)mail.gmail.com> > > Content-Type: text/plain; charset=ISO-8859-1; format=flowed > > > > Thanks. > > I just recently started using Epidata, and I need some help on creating > a > > Check string for automatically calculating BMI using Weight and Height > (in > > pounds and feet/inches). Thanks, again. > > > > > > > > -- > > Ali B. Mansaray > > MANSA Consulting Services > > 6530 Davidson Road > > Columbia, SC 29209 > > 803-381-6864 > > ali.mansaray(a)gmail.com > > > > > > ------------------------------ > > > > ________________________________________ > > EpiData-list(a)lists.umanitoba.ca > > http://lists.umanitoba.ca/mailman/listinfo/epidata-list > > > > > > End of EpiData-list Digest, Vol 42, Issue 5 > > ******************************************* > > > _______________________________________________ > EpiData-list mailing list > EpiData-list(a)lists.umanitoba.ca > http://lists.umanitoba.ca/mailman/listinfo/epidata-list > > > > --------------------------------- > Never miss an email again! > Yahoo! Toolbar alerts you the instant new Mail arrives. Check it out. > > ------------------------------ > > Message: 3 > Date: Fri, 13 Apr 2007 07:26:40 +0200 > From: epidata-list(a)lists.umanitoba.ca > Subject: AW: [EpiData-list] BMI Calculation > To: <epidata-list(a)lists.umanitoba.ca> > Message-ID: <96551DCE4DCEF546921A8AF2F60826B0ED10CE(a)mx.ispm.unibe.ch> > Content-Type: text/plain; charset="iso-8859-1" > > Have a look at the many available documentations on the web. > A similar thing (calculating age from date of birth) is included on page 6 > of a very useful intro (A brief overview of EpiData software) to be found on > http://www.tbrieder.org/ (follow icon to "Revised EpiData course") > marcel > > > -----Ursprüngliche Nachricht----- > Von: epidata-list(a)lists.umanitoba.ca [mailto: > epidata-list(a)lists.umanitoba.ca] > Gesendet: Donnerstag, 12. April 2007 14:13 > An: epidata-list(a)lists.umanitoba.ca > Betreff: [EpiData-list] BMI Calculation > > Thanks. > I just recently started using Epidata, and I need some help on creating a > Check string for automatically calculating BMI using Weight and Height (in > pounds and feet/inches). Thanks, again. > > > > -- > Ali B. Mansaray > MANSA Consulting Services > 6530 Davidson Road > Columbia, SC 29209 > 803-381-6864 > ali.mansaray(a)gmail.com > > > > > ------------------------------ > > ________________________________________ > EpiData-list(a)lists.umanitoba.ca > http://lists.umanitoba.ca/mailman/listinfo/epidata-list > > > End of EpiData-list Digest, Vol 42, Issue 6 > ******************************************* > -- Ali B. Mansaray MANSA Consulting Services 6530 Davidson Road Columbia, SC 29209 803-381-6864 ali.mansaray(a)gmail.com a

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BMI from US measures
by epidata-list＠lists.umanitoba.ca 13 Apr '07

13 Apr '07

If you do not wish to show conversion of US measures into SI units in the QES file, then your QES file should have this: *.QES file wtpd Weight in US pounds ###.# htft Height in US feet # htin Height in US inches ## bmi Body Mass Index in kg/m^2 ##.# You then make all your calculations in the CHK file to get the BMI in SI units: *.CHK file * Definitions from Wikipedia * 1 US foot=(1200/3937) meters * 1 US inch=25.4 millimeters * 1 US pound= 453.59237 grams wtpd MUSTENTER END htft MUSTENTER END htin MUSTENTER AFTER ENTRY bmi=(wtpd*0.45359237)/((htft*(1200/3937)+(htin*0.0254))^2) END END bmi NOENTER END and that should do it. Beware of empty fields contributing to the denominator. Should that be the case, you must make provisions in the CHK file. The above works only if there are no zeros for the two denominator variables, and not permitting any blank fields. Hans -- Hans L Rieder, MD, MPH Jetzikofenstr. 12 3038 Kirchlindach Switzerland Tel: +41 31 829 4577 Mob: +41 79 321 9122 Web: http://www.tbrieder.org

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