Evidence map›Paper›PMID 31786699›Full record

ArticleHernia : the journal of hernias and abdominal wall surgery2020

A 19 year population-based cohort study analysing reoperation for recurrence following laparoscopic and open inguinal hernia repairs.

G Ramsay, N W Scott, J O Jansen

Open access · hybridAbstract read
In one paragraph

Article in Hernia : the journal of hernias and abdominal wall surgery, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 13 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
13citing papers in PubMed, 1 pooled it
2.0field-weighted citation impact, top 14% 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

13 citing papers in PubMed, 1 synthesis or guideline pooled it, 19 citations in OpenAlex.

  1. Pooled it
  2. Article
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  5. Lightweight versus heavyweight synthetic mesh for inguinal hernia repair.The Cochrane database of systematic reviews · 2025
    Article
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  9. Observational
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  13. Hernia research in developing countries-are we looking for needles in haystacks?Hernia : the journal of hernias and abdominal wall surgery · 2020
    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

3 authors at 2 institutions in 2 countries.

G RamsayRowett Institute, University of Aberdeen, Ashgrove Road West, Aberdeen, AB25 2ZD, UK. george.ramsay@nhs.net.ORCID 0000-0001-9862-2323
N W ScottMedical Statistics Team, Division of Applied Health Sciences, Polwarth Building University of Aberdeen Foresterhill, Aberdeen, AB25 2ZD, UK.
J O JansenDivision of Acute Care Surgery, University of Alabama at Birmingham, Birmingham, USA.
University of Aberdeen · GBUniversity of Alabama at Birmingham · US

Funding

Chief Scientist Office HSRU1
6 · The paper itself

Abstract

introductionLaparoscopic (LHR) and open (OHR) inguinal hernia repairs are both used to treat primary herniae. This study analyses the rates of operation for recurrence after laparoscopic and open inguinal hernia repair, at a population level, while considering competing risks, such as death and other operative interventions.

methodsThis is a population cohort study in Scotland. All adult patients who had a primary inguinal hernia repair in Scotland between 01/04/1996 and 01/01/2015 were included. The main outcome was recurrent operations. Cumulative incidence functions (CIF) were calculated for competing risks of death. A cox proportional hazards regression model was used to control for confounders of age, gender, bilateral herniae, deprivation and year of procedure.

resultsOf 88,590 patients, there were 10,145 LHR and 78,445 OHR. Recurrent operations were required in 1397 (1.8%) OHR and 362 (3.6%). LHR had greater hazard of recurrence than OHR (HR 1.83, 95% CI 1.61-2.08, p < 0.001). Faster time to recurrence was also associated with being older (HR for one year increase: 1.010, 95% CI 1.007-1.013, p < 0.001), being more affluent (HR 1.18, 95% CI 1.01-1.38, p = 0.04) and having a bilateral index operation (HR 2.53, 95% CI 2.22-2.88, p < 0.001).

conclusionsLHR is becoming more popular in Scotland over the past 2 decades. However, when other key confounding factors are controlled, it is associated with a higher recurrence rate.

Indexed as

AgedCohort StudiesFemaleHernia, InguinalHerniorrhaphyHumansLaparoscopyMaleMiddle AgedRecurrenceReoperationTime Factors

Identifiers

PMID31786699
PMCPMC7395908
OpenAlexW2983233550

What OpenQuestion holds

Textmetadata
LicenceCC BY
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.