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From |
"Carlo Lazzaro" <carlo.lazzaro@tiscalinet.it> |

To |
<statalist@hsphsun2.harvard.edu> |

Subject |
R: st: R: Pooled effects for continuous data |

Date |
Thu, 13 Nov 2008 09:57:21 +0100 |

Dear Louise, apart from reminding one of the already mentioned Stata routine (please, type - help metan -) as far as costs are concerned, I would strongly recommend you to take a look at Glick HA, Doshi JA, Sonnad SS, Polsky D. Economic Evaluation in Clinical Trials. Oxford: Oxford University Press, 2007: 207-228. Another thought about a quick (and probably too much) dirty way for dealing with your issue might be to weight your data for the number of patients enrolled in each trials. Sorry I cannot be more helpful. I do hope that Someone else on the list will chime in with a smarter insight. Kind Regards, Carlo -----Messaggio originale----- Da: owner-statalist@hsphsun2.harvard.edu [mailto:owner-statalist@hsphsun2.harvard.edu] Per conto di Louisa Lam Inviato: giovedì 13 novembre 2008 6.24 A: statalist@hsphsun2.harvard.edu Oggetto: Re: st: R: Pooled effects for continuous data Dear Carlo, Thanks for the information. It is very helpful to know that Stata can be used for meta-analysis. However, after reading through all the functions, I still couldn't find anything to caculate the pooled effect for 'medians and IQR' and the pooled effects for 'different in cost and its 95% CI'. For example for hospital length of stay(unit in days): Study 1 median: 45 IQR: 36, 50 Study 2 median: 32 IQR: 28, 40 Study 3 median: 17 IQR: 12. 22 Study 4 median: 28 IQR: 23, 38 Is there anyway to caculate an effect estimate and a 95% CI of the above 4 studies? Louisa Carlo Lazzaro wrote: > Dear Louisa, > The following ones may of interest fot your research purposes. > > Kind Regards, > > Carlo (A Stata 9.2/SE user) > > ---------------------------------------------------------------------------- > ------------------------------------------------ > search for metan > (manual: [R] search) > ---------------------------------------------------------------------------- > ------------------------------------------------ > > Keywords: metan > Search: (1) Official help files, FAQs, Examples, SJs, and STBs > > > Search of official help files, FAQs, Examples, SJs, and STBs > > FAQ . . . . . . . . . . . User-written packages for meta-analysis in > Stata > . . . . . . . . . . J. Sterne, R. Harris, R. Harbord, and T. > Steichen > 1/07 What meta-analysis features are available in > Stata? > http://www.stata.com/support/faqs/stat/meta.html > > SJ-4-2 pr0012 . . . . . . . . Submenu and dialogs for meta-analysis > commands > (help meta_dialog if installed) . . . . . . . . . . . . T. J. > Steichen > Q2/04 SJ 4(2):124--126 > provides Stata dialog boxes and commands to create a submenu > for publicly available meta-analysis commands > > SJ-4-2 st0061 . . . . . . . . . . . . . . . . Funnel plots in > meta-analysis > (help metafunnel if installed) . . J. A. C. Sterne and R. M. > Harbord > Q2/04 SJ 4(2):127--141 > discusses funnel plots, possible causes of asymmetry, and > the metafunnel command > > STB-45 sbe24.1 . . . . . . . . . . . . . . . . . . Correction to funnel > plot > (help funnel if installed) . . . M. Bradburn, J. Deeks, and D. > Altman > 9/98 p.21; STB Reprints Vol 8, p.100 > > STB-44 sbe24 . . . . . . . . . metan -- an alternative meta-analysis > command > (help metan if installed) . . . . . . . . . Bradburn, Deeks, & > Altman > 7/98 pp.4--15; STB Reprints Vol 8, pp.86--100 > meta-analysis command for studies with two groups > > (end of search) > -----Messaggio originale----- > Da: owner-statalist@hsphsun2.harvard.edu > [mailto:owner-statalist@hsphsun2.harvard.edu] Per conto di Louisa Lam > Inviato: martedì 11 novembre 2008 5.07 > A: Statistic Help > Oggetto: st: Pooled effects for continuous data > > I am doing a meta-analysis which I need to calculate the pooled effects > for continuous data from a group of studies. > For example: > For length of stay, all the data from different studies were presented > in medians and IQR > For cost, all the data were presented in 'different in cost' and 95% CI > > Is there anyway to calculate the pooled effects of the above using Stata? > If yes, please show me the syntax for such calculations. > Thank you. > > Louisa > > * > * For searches and help try: > * http://www.stata.com/help.cgi?search > * http://www.stata.com/support/statalist/faq > * http://www.ats.ucla.edu/stat/stata/ > > > > * > * For searches and help try: > * http://www.stata.com/help.cgi?search > * http://www.stata.com/support/statalist/faq > * http://www.ats.ucla.edu/stat/stata/ > * * For searches and help try: * http://www.stata.com/help.cgi?search * http://www.stata.com/support/statalist/faq * http://www.ats.ucla.edu/stat/stata/ * * For searches and help try: * http://www.stata.com/help.cgi?search * http://www.stata.com/support/statalist/faq * http://www.ats.ucla.edu/stat/stata/

**References**:**Re: st: R: Pooled effects for continuous data***From:*Louisa Lam <Louisa.Lam@med.monash.edu.au>

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