October 2008 - EpiData-list - University of Manitoba Mailing Lists

EpiData Analysis v2.1.0.150 available on testing.php
by epidata-list＠lists.umanitoba.ca 16 Oct '08

16 Oct '08

Dear all I have placed version 2.1 of EpiData Analysis on the http://www.epidata.dk/testing.php for download. As always we cannot be sure if some "un-discovered" problems remain. But obviously by moving to general download there should be no problems resulting in e.g. wrong estimation or break-down. None such has been reported, only some very special issues remaining - which you can see in the Mantis database - but these will not affect the vast majority of users. If no major bugs show up within the next few days, the same version will be placed for general download. One of the aspects for which no feedback has been given is the lifetable and km-plot routines. The documentation in the form of the overall and detailed command reference has been updated. In the next months all the pdf based documentation will be revised and updated with current screen design etc. regards Jens Lauritsen EpiData Association

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Re: [EpiData-list] PDA entry
by epidata-list＠lists.umanitoba.ca 15 Oct '08

15 Oct '08

See the email from WHO below - many thanks to Leanne. Best regards, Maximilian de Courten MD, MPH On 15/10/2008, at 22:49, "Riley, Leanne" <rileyl(a)who.int> wrote: > Thanks Max. Tony, my email at WHO is: > > rileyl(a)who.int > > We would be happy to share our survey software (we call it eSTEPS) > with > you. Best wishes, Leanne > > > > Leanne Riley > Team Leader, Surveillance > Department of Chronic Diseases and Health Promotion > World Health Organization > 20 Avenue Appia > CH 1211 Geneva, Switzerland > Tel: +41 22 791 4319 > Email: rileyl(a)who.int > > Please consider the environment before printing this email > > -----Original Message----- > From: de Courten Maximilian [mailto:max.decourten@med.monash.edu.au] > Sent: 15 October 2008 03:45 > To: epidata-list(a)lists.umanitoba.ca > Cc: Riley, Leanne > Subject: Re: [EpiData-list] PDA entry > > Hello Tony, > > The WHO has commissioned a PDA-based data capture software which is > easy > to use for any questionnaire, contains various types of question types > (radio-button, tick-box, multiple answers, free-text fields, numeric > fields) and safes the data in the .rec format. The software is > available > through WHO and was used in several surveys and some cost- comparison > against paper-based surveys were done too. > Best to contact Leanne Riley from WHO about its availability. > > Best regards > Max > > On 15/10/2008, at 7:51 AM, epidata-list(a)lists.umanitoba.ca wrote: > >> Does anyone have any experience or suggestions for suitable data >> capture software on PDAs that will collect data in a form usable by >> EpiData? >> We're looking to do an immunisation survey. Flat file will be >> sufficient, no need for related fields. >> >> Tony Stewart >> _______________________________________________ >> EpiData-list mailing list >> EpiData-list(a)lists.umanitoba.ca >> http://lists.umanitoba.ca/mailman/listinfo/epidata-list >

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Alyshia Landry is out of the office.
by epidata-list＠lists.umanitoba.ca 15 Oct '08

15 Oct '08

I will be out of the office starting 10/15/2008 and will not return until 10/17/2008. If you require immediate assistance, please contact Celina Sousa at extension 5300. Thanks and have a wonderful day, Alyshia

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PDA entry
by epidata-list＠lists.umanitoba.ca 15 Oct '08

15 Oct '08

I do not have any experience with PDA, but I have used a software called PenDragon in a vaccine survey a time a go. This is used in palm tops. Its functionallity is very similar to EpiData. I guess a I did not help much, Sorry, Pedro Brasil

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PDA entry
by epidata-list＠lists.umanitoba.ca 15 Oct '08

15 Oct '08

Does anyone have any experience or suggestions for suitable data capture software on PDAs that will collect data in a form usable by EpiData? We're looking to do an immunisation survey. Flat file will be sufficient, no need for related fields. Tony Stewart

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OR error report
by epidata-list＠lists.umanitoba.ca 14 Oct '08

14 Oct '08

This is concerning to v2.0.3.129 EpiData Analysis. Recently I dig in to OR and RR using said version. The data base I used was one used in SPSS to do the same. In essence, the calculation result were different from what I obtained from SPSS, given that I recoded outcomes and risk exposures, i.e. 1=2, 2=1. (SPSS uses ascending order for both outcomes and risk exposures, 1 codes as positive 2 as negative which is just the opposite of EpiData Analysis handling) EpiData Analysis result: OR=3.68 (95% CI: 1.03-11.89)Fishersexact p= 0.0224 SPSS result: OR=3.72 (3.7158) (95% CI: 1.27039-10.86604) Fishersexact p=.02239 Whereas RR resulted the same. EpiData Analysis: RR = 2.86 (95% CI: 1.31-6.24)Fishersexact p= 0.0224 SPSS: RR = 2.86 (2.85789) (95% CI: 1.30965-6.23646) USING CELL OBSERVED FREQUENCIES AS A=6, B=13, C=20, D=161 WHEREAS A:C1R1, B:C2R1, C:C1R2, D:C2R2. I wonder if the formula used by EpiData Analysis is OR=(A/C)/(B/D)=(A/B)/(C/D)= (AD)/(BC). The OR as well as corresponding CI are different from that of SPSS. The attached .dbf file uses RV3 as outcome variable and RRIESGO as risk exposure variable using code 2 as positive for both variables.

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Problem with STATTABLES command
by epidata-list＠lists.umanitoba.ca 10 Oct '08

10 Oct '08

Good morning Jens, I have a problem with saving the results of a stattables command to another file. The command I use is: stattables bcg3 /stat="sum" /by="mth" save="c:\downloads\epidata\testsave.rec" (In analysis, this command is all on one line) I have not had this problem with versions prior to build 148. The correct table is produced in the output screen, but the testsave.rec file is not created. Nor is there any indication in analysis that there might be a problem. I have tried specifying the full path (as in this example) as well as just specifying the filename testsave.rec. I have also tried it with the /replace option. Annemieke van Middelkoop Pretoria, South Africa

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Adapted EpiData Analysis b149 ready
by epidata-list＠lists.umanitoba.ca 08 Oct '08

08 Oct '08

A few errors have been reported in the b148 of analysis of last week. These are now fixed, and a new build uploaded for testing. (Users who have taken b148 and are not using compact tables can continue with b148 and report). If no major bugs are found the build 149 will be released as v2.1 at the end of this week for general use replacing current build 2.0 on the download page. regards Jens Lauritsen EpiData Association

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multiple response (& server is up again)
by epidata-list＠lists.umanitoba.ca 07 Oct '08

07 Oct '08

The server is now up and running again. (All scripts have been checked - there were no problems, but only assumed problems). Off list the following question was asked regarding EpiData Analysis > Hi There, > I have a question that i am trying to evaluate with a multi response answer. > I have set out the question as follow with a text variable for each answer: > > Q1: What fruit do you like _ _ _ _ _ > a - Apples b - Orange c - Banana d - Pear e - Grapes > Now when i go to analyse this, is there a way i can graph the response > for this answer on a bar graph? I cannot seem to be able to add > multiple series into the graph to compare all answers for this question? Currently bar graphs can only take one variable at a time. Except for box and scatter/line plots for several variables. Box plots for several variables has just been introduced with the pre v2.1 - v2.0.5.148 version. For all graphs a /by variable has been introduced, but this does not change the basic limitation of one variable per plot. What you could do to analyse the data is to use stattables and count binary indicators calculated like this: gen i apple = (pos(q1, "a" ) > 0) gen i orange = (pos(q1, "b" ) > 0) etc for the other fruits. stattable apple orange ......../stat="sum" /N /close * then in the new file with counts of the fruits and the total some percentages could be worked out. A graph showing the combinations of the variables in the form of a VENN diagram could be a solution, but currently this cannot be done with EpiData Analysis. I wrote a command for Stata for this: See: http://www.stata.com/products/stb/journals/stb47.pdf . The initial version has been extended with four factor ellipses. We could consider including Venn diagrams in a later version (but at the earliest second quarter 2009) and also a multiple response tables command. regards Jens Lauritsen EpiData Association

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website epidata.dk is down due to attempts of "phishing"
by epidata-list＠lists.umanitoba.ca 06 Oct '08

06 Oct '08

The webserver company claims someone tried to use the epidata.dk site for spamming. I will notify when the server is up again. regards Jens Lauritsen EpiData Association

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