Evidence map›Paper›PMID 34304324›Full record

ArticleThe European journal of health economics : HEPAC : health economics in prevention and care2022

The impact of cancellations in waiting times analysis: evidence from scheduled surgeries in the Portuguese NHS.

Joana Cima, Álvaro Almeida

Open access · bronzeAbstract read
In one paragraph

Article in The European journal of health economics : HEPAC : health economics in prevention and care, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers.

0numbers the graph read from it
0cells of the map it votes in
2citing papers in PubMed
0.8field-weighted citation impact, top 26% of its field
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

2 citing papers in PubMed, 3 citations in OpenAlex.

  1. Review
  2. Article
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

2 authors at 1 institution in 1 country.

Joana CimaFaculdade de Economia, Universidade Do Porto, 4200-464, Porto, Portugal. joanacima.phd@fep.up.pt.ORCID http://orcid.org/0000-0002-2780-7467
Álvaro AlmeidaCEF.UP and Faculdade de Economia, Universidade Do Porto, Porto, Portugal.ORCID http://orcid.org/0000-0002-3604-0931
Universidade do Porto · PT

Funding

Fundação para a Ciência e a Tecnologia PhD Scholarship: SFRH/BD/115954/2016
6 · The paper itself

Abstract

backgroundEquity in access to scheduled surgery has been a topic of attention of researchers and decision-makers on healthcare. Most studies analyse the number of days that patients wait before undergoing surgery, and ignore patients that have been on the waiting list but have not benefited from surgery. This study contributes to the existing literature on waiting lists by analysing cancellations along with surgery episodes.

methodsWe use a database comprising all patients that entered the waiting list for scheduled surgeries in the Portuguese National Health Service from 2011 to 2015 (around 3 million observations) and estimate survival models to explain waiting times, where cancellations are introduced as censored data.

resultsThe cancellation rate is significant (around 14%), and has a considerable impact on results: ignoring cancellations biases estimates, in particular for gender differences (that are overestimated without cancelations), and for the age effect (that is underestimated).

conclusionThus, our approach provides a more accurate understanding of the impact that several factors have on overall access to scheduled surgery.

Indexed as

State MedicineWaiting ListsAppointments and SchedulesHumansPortugalAccessCancellationsPortugalScheduled surgerySurvival models

Identifiers

PMID34304324
PMCPMC8310557
OpenAlexW3183355182

What OpenQuestion holds

Textmetadata
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.