Evidence map›Paper›PMID 16336016›Full record

ArticlePharmacoEconomics2005

Willingness to pay for inhaled insulin: a contingent valuation approach.

Hamid Sadri, Linda D MacKeigan, Lawrence A Leiter, Thomas R Einarson

Abstract readComparative Study
PubMed Publisher
In one paragraph

Article in PharmacoEconomics, 2005. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 13 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
13citing papers in PubMed, 2 pooled it
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

13 citing papers in PubMed, 2 syntheses or guidelines pooled it.

  1. Pooled it
  2. Psychological insulin resistance: patient beliefs and implications for diabetes management.Quality of life research : an international journal of quality of life aspects of treatment, care and rehabilitation · 2009
    Pooled it
  3. Article
  4. Emotions and scope effects in the monetary valuation of health.The European journal of health economics : HEPAC : health economics in prevention and care · 2018
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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

4 authors.

Hamid SadriDepartment of Pharmaceutical Sciences, University of Toronto, Ontario, Canada. hamid.sadri@utoronto.com
Linda D MacKeigan
Lawrence A Leiter
Thomas R Einarson

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

purposeTo determine the willingness to pay (WTP) of patients with diabetes mellitus for inhaled insulin.

methodsA contingent valuation survey was administered to 96 diabetic outpatients at St. Michael's Hospital, Toronto, Canada. Standardised information about inhaled insulin and subcutaneous rapid-acting insulin was provided via video. Participants' WTP for their preferred product was elicited in Canadian dollars (Can dollars) using a 'payment-scale' method.

resultsThe mean age of participants was 51.8 years (SD 13.4). Seventy-seven patients had type 2 and 19 had type 1 diabetes. Significantly more participants preferred inhaled insulin over subcutaneous insulin (85 vs 11; p < 0.01). Mean monthly WTP for inhaled insulin (153.70 Can dollars, SD 99.90) was significantly more than the typical 50 Can dollars per month for subcutaneous insulin (p < 0.01). Significantly more participants with type 2 diabetes using oral drugs than those with type 1 diabetes and using insulin preferred inhaled insulin (98.5% vs 69%, p < 0.001). Diabetic patients who did not use insulin were willing to pay significantly more than were insulin users (p < 0.001). Multiple regression analysis showed that income was significantly associated with WTP for inhaled insulin.

conclusionDiabetic patients, particularly those who are not using insulin, indicated that they would prefer inhaled insulin over insulin injection and would be willing to pay a substantial amount per month to use it. An economic evaluation of inhaled insulin would provide important information to healthcare policy decision makers and private payers about its economic value.

Indexed as

Administration, InhalationAdministration, OralAdultCanadaDiabetes Mellitus, Type 1Diabetes Mellitus, Type 2FemaleFinancing, PersonalGlyburideHealth Care SurveysHumansHypoglycemic AgentsInsulinMaleMetforminMiddle AgedGlyburideHypoglycemic AgentsInsulinMetformin

Identifiers

What OpenQuestion holds

Texttitle and abstract
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.