 |
 |
(#2015-93) Mime-Version: 1.0 Content-Type: multipart/alternative; boundary="=__PartD5E2B27D.0__=" This is a MIME message. If you are reading this text, you may want to consider changing to a mail reader or gateway that understands how to properly handle MIME multipart messages. --=__PartD5E2B27D.0__= Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: quoted-printable =20 Helen, This is a bit of a cheeky response, but I don't mean anything bad = by it... Why would you want NNTs for public health? NNTs were invented to = translate epidemiological concepts to the practicing clinician, whose = sense of magnitude comes from how many patients they'll see with a given = condition in a given time frame. Public health has available to it = attributable risk, population attributable risk, and just plain old = absolute risk reductions to get at the magnitude of intervention effect, = much more applicable statistics that NNT for population health uses. Just = curious...I probably just don't understand how you would be using them. = John John Epling, MD, MSEd Chair, Department of Family Medicine SUNY Upstate = Medical University Syracuse, NY (sent from my phone)=20 -------- Original message -------- From: "EVIDENCE-BASED-HEALTH automatic digest system <[log in to unmask] UK>" <[log in to unmask]>=20 Date: 11/05/2015 19:11 (GMT-05:00)=20 To: =20 Subject: EVIDENCE-BASED-HEALTH Digest - 4 Nov 2015 to 5 Nov 2015 (#2015-93)= =20 Date: Thu, 5 Nov 2015 15:21:11 +0000 From: Helen Outhwaite <[log in to unmask]> Subject: Numbers needed to treat and public health Please let me know if you have any suggestions about searching (terms, = strategies, filters, sources) for numbers needed to treat (NNT) and public = health? This could be already calculated NNT or risk/ incidence of outcome = with/without the intervention. for example: blood pressure control to prevent heart failure or end stage kidney = disease stopping smoking to prevent heart failure or stroke or CKD I have run some searches on Cochrane, Medline, NHS EED and looked at the = following: The NNT http://www.thennt.com/home-nnt/ EBM Toronto http://ktclearinghouse.ca/cebm/toolbox/nnt NNT and public health interventions (http://www.nwph.net/Publications/NNT_F= INAL.pdf ) Any further help will be appreciated. Helen Helen Outhwaite Knowledge and Evidence Specialist Local Knowledge and Intelligence Services Yorkshire and Humber, North East = and North West Public Health England ************************************************************************** The information contained in the EMail and any attachments is confidential = and intended solely and for the attention and use of the named addressee(s)= . It may not be disclosed to any other person without the express = authority of Public Health England, or the intended recipient, or both. If = you are not the intended recipient, you must not disclose, copy, distribute= or retain this message or any part of it. This footnote also confirms = that this EMail has been swept for computer viruses by Symantec.Cloud, but = please re-sweep any attachments before opening or saving. http://www.gov.uk= /PHE ************************************************************************** ------------------------------ End of EVIDENCE-BASED-HEALTH Digest - 4 Nov 2015 to 5 Nov 2015 (#2015-93) ************************************************************************* --=__PartD5E2B27D.0__= Content-Type: text/html; charset=US-ASCII Content-Transfer-Encoding: quoted-printable Content-Description: HTML <html><head><meta http-equiv=3D"Content-Type" content=3D"text/html; = charset=3DUTF-8"></head><body>=0A =0A<div>Helen, <div dir=3D"auto">= This is a bit of a cheeky response, but I don't mean anything bad by it... = Why would you want NNTs for public health? NNTs were invented to translate = epidemiological concepts to the practicing clinician, whose sense of = magnitude comes from how many patients they'll see with a given condition = in a given time frame. </div><div dir=3D"auto">Public health has = available to it attributable risk, population attributable risk, and just = plain old absolute risk reductions to get at the magnitude of intervention = effect, much more applicable statistics that NNT for population health = uses. </div><div dir=3D"auto">Just curious...I probably just don't = understand how you would be using them. </div><div dir=3D"auto">John</= div></div><div><br></div><div><br></div><div id=3D"composer_signature"><met= a http-equiv=3D"Content-Type" content=3D"text/html; charset=3DUTF-8"><div><= div>John Epling, MD, MSEd <div>Chair, Department of Family Medicine&nb= sp;</div><div>SUNY Upstate Medical University </div><div>Syracuse, = NY </div></div><div>(sent from my phone) </div></div></div><br><b= r>-------- Original message --------<br>From: "EVIDENCE-BASED-HEALTH = automatic digest system <[log in to unmask]>" <LISTSERV@JISCM= AIL.AC.UK> <br>Date: 11/05/2015 19:11 (GMT-05:00) <br>To: <br>Subject= : EVIDENCE-BASED-HEALTH Digest - 4 Nov 2015 to 5 Nov 2015 (#2015-93) = <br><br><div><br dir=3D"auto"><br dir=3D"auto">Date: = Thu, 5 Nov 2015 15:21:11 +0000<br dir=3D"auto">From: = Helen Outhwaite <[log in to unmask]><br dir=3D"auto">Subject:= Numbers needed to treat and public health<br dir=3D"auto"><br dir=3D"auto"= ><br dir=3D"auto">Please let me know if you have any suggestions about = searching (terms, strategies, filters, sources) for numbers needed to = treat (NNT) and public health?<br dir=3D"auto">This could be already = calculated NNT or risk/ incidence of outcome with/without the intervention.= <br dir=3D"auto"><br dir=3D"auto">for example:<br dir=3D"auto">blood = pressure control to prevent heart failure or end stage kidney disease<br = dir=3D"auto">stopping smoking to prevent heart failure or stroke or CKD<br = dir=3D"auto"><br dir=3D"auto">I have run some searches on Cochrane, = Medline, NHS EED and looked at the following:<br dir=3D"auto">The = NNT http://www.thennt.com/home-nnt/<br dir=3D"auto">EBM Toronto = http://ktclearinghouse.ca/cebm/toolbox/nnt<br dir=3D"auto">NNT and public = health interventions (http://www.nwph.net/Publications/NNT_FINAL.pdf )<br = dir=3D"auto"><br dir=3D"auto">Any further help will be appreciated.<br = dir=3D"auto"><br dir=3D"auto">Helen<br dir=3D"auto"><br dir=3D"auto">Helen = Outhwaite<br dir=3D"auto"><br dir=3D"auto">Knowledge and Evidence = Specialist<br dir=3D"auto">Local Knowledge and Intelligence Services = Yorkshire and Humber, North East and North West<br dir=3D"auto">Public = Health England<br dir=3D"auto"><br dir=3D"auto"><br dir=3D"auto"><br = dir=3D"auto">**************************************************************= ************<br dir=3D"auto">The information contained in the EMail and = any attachments is confidential and intended solely and for the attention = and use of the named addressee(s). It may not be disclosed to any other = person without the express authority of Public Health England, or the = intended recipient, or both. If you are not the intended recipient, you = must not disclose, copy, distribute or retain this message or any part of = it. This footnote also confirms that this EMail has been swept for = computer viruses by Symantec.Cloud, but please re-sweep any attachments = before opening or saving. http://www.gov.uk/PHE<br dir=3D"auto">***********= ***************************************************************<br = dir=3D"auto"><br dir=3D"auto">------------------------------<br dir=3D"auto= "><br dir=3D"auto">End of EVIDENCE-BASED-HEALTH Digest - 4 Nov 2015 to 5 = Nov 2015 (#2015-93)<br dir=3D"auto">***************************************= **********************************<br dir=3D"auto"></div></body></html> --=__PartD5E2B27D.0__=--