TITLE

Waiting time in relation to wait-list size at registration: statistical analysis of a waiting-list registry

AUTHOR(S)
Sobolev, Boris; Brown, Peter; Zelt, David; Kuramoto, Lisa
PUB. DATE
December 2004
SOURCE
Clinical & Investigative Medicine;Dec2004, Vol. 27 Issue 6, p298
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
Objective: To examine the relationship between the length of a waiting list for elective vascular surgery and the delay before undergoing the operation. Methods: We undertook a prospective cohort study of patients registered on the waiting list for elective vascular surgery at an acute care hospital in Ontario. Regression analysis of wait times to express the admission rate in one group relative to another, with the ratio of rates being a measure of the difference between groups. Results: List length at registration was associated with length of wait (log-rank test 596.4, p < 0.0001). Patients who were registered when the list length exceeded the weekly service capacity had 70% lower conditional probability of undergoing surgery than those on a list with fewer patients (rate ratio 0.30, 95% confidence interval [CI] 0.26-0.36) after adjustment for sex, age, procedure and period. Registering more than 5 patients when the list was short had an independent effect (rate ratio 0.61, CI 0.45-0.82). Conclusions: The number of registrants on a surgical wait list has an effect on the length of delay in providing necessary treatment. Our results suggest that a regulated list-length policy may contribute to reducing waiting times. Hospital managers may also use the findings to reduce uncertainty in reporting expected waits given the current list size, thereby improving resource planning.
ACCESSION #
15543198

 

Related Articles

  • Short- and Long-Term Attributable Costs of Clostridium difficile—Associated Disease in Nonsurgical Inpatients. Dubberke, Erik R.; Reske, Kimberly A.; Olsen, Margaret A.; Mcdonald, L. Clifford; Fraser, Victoria J. // Clinical Infectious Diseases;2/15/2008, Vol. 46 Issue 4, p497 

    Background. The incidence of Clostridium difficile-associated disease (CDAD) is increasing. There are few data on the short-term and long-term attributable costs of CDAD. The objective of this study was to determine the acute and 180-day attributable inpatient costs of CDAD. Methods. We...

  • Zertifizierung von Gefäßzentren. Gross-Fengels, W.; Heuser, L.; Vorwerk, D.; Helmberger, T. // Der Radiologe;Oct2011, Vol. 51 Issue 10, p864 

    Diagnosis and therapy of vascular diseases are increasingly being performed following a multimodal, interdisciplinary and less invasive approach. The introduction of specialized, organ-related centers is a logical consequence in view of a better treatment quality and a more effective use of...

  • Estimating the Power of Indirect Comparisons: A Simulation Study. Mills, Edward J.; Ghement, Isabella; O'Regan, Christopher; Thorlund, Kristian // PLoS ONE;2011, Vol. 6 Issue 1, p1 

    Background: Indirect comparisons are becoming increasingly popular for evaluating medical treatments that have not been compared head-to-head in randomized clinical trials (RCTs). While indirect methods have grown in popularity and acceptance, little is known about the fragility of confidence...

  • "Not Statistically Different" Does Not Necessarily Mean "the Same": The Important but Underappreciated Distinction Between Difference and Equivalence Studies. Harris, Alex H. S.; Fernandes-Taylor, Sara; Giori, Nicholas // Journal of Bone & Joint Surgery, American Volume;3/7/2012, Vol. 94-A Issue 5, p478 

    The article explains the distinction between the familiar difference trial study design and the less familiar equivalence study design in evaluating the equivalence of a new medical or surgical treatment. It states that the equivalence of two treatments cannot be ascertained by failing to find a...

  • Field evaluation of a rapid, visually-read colloidal dye immunofiltration assay for Schistosoma japonicum for screening in areas of low transmission. Xiang Xiao; Tianping Wang; Hongzhuan Ye; Guangxiang Qiang; Haiming Wei; Zhigang Tian // Bulletin of the World Health Organization;May2007, Vol. 85 Issue 5, p526 

    Objective To determine the validity of a recently developed rapid test — a colloidal dye immunofiltration assay (CDIFA) — used by health workers in field settings to identify villagers infected with Schistosoma japonicum. Methods Health workers in the field used CDIFA to test...

  • Long-term Air Pollution Exposure and Acceleration of Atherosclerosis and Vascular Inflammation in an Animal Model. Sun, Qinghua; Wang, Aixia; Jin, Ximei; Natanzon, Alex; Duquaine, Damon; Brook, Robert D.; Aguinaldo, Juan-Gilberto S.; Fayad, Zahi A.; Fuster, Valentin; Lippmann, Morton; Chen, Lung Chi; Rajagopalan, Sanjay // JAMA: Journal of the American Medical Association;12/21/2005, Vol. 294 Issue 23, p3003 

    Context Recent studies have suggested a link between inhaled particulate matter exposure in urban areas and susceptibility to cardiovascular events; however, the precise mechanisms remain to be determined. Objective To test the hypothesis that subchronic exposure to environmentally relevant...

  • Sifting the evidence--what's wrong with significance tests? Sterne, Jonathan A. C.; Smith, George Davey // Physical Therapy;Aug2001, Vol. 81 Issue 8, p1464 

    Deals with the emergence of significance testing in medical research. Brief history of P values and significance testing; Analysis of the misrepresentations of P values and significance tests; Discussion on ways of reducing the degree from which one is misled by the practice of significance...

  • From the Editor... Silliman, Elaine R. // Language, Speech & Hearing Services in Schools;Apr2000, Vol. 31 Issue 2, p115 

    Focuses on the application of null hypothesis significance testing in clinical research. Debates over its employment in determining clinical significance; Confusion regarding the meaning of a significance level.

  • Provider Advice About Weight Loss and Physical Activity in the Postpartum Period. Ferrari, Renée M.; Siega-Riz, Anna Maria; Evenson, Kelly R.; Moos, Merry-K.; Melvin, Cathy L.; Herring, Amy H. // Journal of Women's Health (15409996);Mar2010, Vol. 19 Issue 3, p397 

    Objective: To explore the association between healthcare provider advice about weight loss and physical activity in the postpartum period and weight retention and activity levels in women assessed at 3 months postpartum. Methods: Using data from a prospective cohort study, we explored the...

Share

Read the Article

Courtesy of THE LIBRARY OF VIRGINIA

Sorry, but this item is not currently available from your library.

Try another library?
Sign out of this library

Other Topics