Evidence map›Paper›PMID 36223758›Full record

ArticleNeuroepidemiology2022

Epidemiology of First and Recurrent Ischemic Stroke in Sweden 2010-2019: A Riksstroke Study.

Conrad Drescher, Fredrik Buchwald, Teresa Ullberg, Mats Pihlsgård, Bo Norrving, Jesper Petersson

Open access · hybridAbstract read
In one paragraph

Article in Neuroepidemiology, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 21 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
21citing papers in PubMed, 1 pooled it
4.7field-weighted citation impact, top 4% 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

21 citing papers in PubMed, 1 synthesis or guideline pooled it, 33 citations in OpenAlex.

  1. Pooled it
  2. Article
  3. Article
  4. Article
  5. Article
  6. Observational
  7. Review
  8. Article
  9. Article
  10. Article
  11. Article
  12. Article
  13. Article
  14. Article
  15. Review
  16. Article
  17. Article
  18. Article
  19. Review
  20. 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

6 authors at 2 institutions in 1 country.

Conrad DrescherNeurology, Department of Clinical Sciences Lund, Lund University, and Neurology, Skåne University Hospital Lund/Malmö, Lund/Malmö, Sweden.
Fredrik BuchwaldNeurology, Department of Clinical Sciences Lund, Lund University, and Neurology, Skåne University Hospital Lund/Malmö, Lund/Malmö, Sweden.
Teresa UllbergNeurology, Department of Clinical Sciences Lund, Lund University, and Neurology, Skåne University Hospital Lund/Malmö, Lund/Malmö, Sweden.
Mats PihlsgårdPerinatal and Cardiovascular Epidemiology, Department of Clinical Sciences Malmö, Lund University, Lund, Sweden.
Bo NorrvingNeurology, Department of Clinical Sciences Lund, Lund University, and Neurology, Skåne University Hospital Lund/Malmö, Lund/Malmö, Sweden.
Jesper PeterssonNeurology, Department of Clinical Sciences Lund, Lund University, and Neurology, Skåne University Hospital Lund/Malmö, Lund/Malmö, Sweden.
Lund University · SESkåne University Hospital · SE

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

introductionIschemic stroke incidence appears to have decreased during the last decades, but most studies focus on the first-ever events and epidemiological data on recurrent stroke are scarce. The aim of our study was to investigate trends in incidence, risk factors, and medication in patients with first-ever and recurrent ischemic stroke between 2010 and 2019 in Sweden.

methodsWe included patients (≥18 years old) with ischemic stroke registered in the hospital-based Swedish Stroke Register (Riksstroke) 2010-2019. The coverage of Riksstroke was consistently high (about 90%) during this period. Data were stratified by first-ever and recurrent ischemic stroke in three different time periods (2010-2012, 2013-2016, and 2017-2019) and shown as crude and age-specific incidence rates per 100,000 person-years. Statistics Sweden provided census data on the Swedish population in different age groups.

resultsDuring the study period, 201,316 cases of ischemic stroke were registered in Riksstroke, including 153,865 (76.4%) cases of first-ever ischemic stroke and 46,248 (23.0%) cases of recurrent ischemic stroke (0.6% of cases unclassified). The crude incidence of first-ever ischemic stroke decreased by 17% from 216 (95% CI 214-218) to 179 (95% CI 177-181) between 2010-2012 and 2017-2019, whereas recurrent ischemic stroke decreased by 33% from 72 (95% CI 71-73) to 48 (95% CI 47-49). Between these time periods, diminishing ischemic stroke incidence was seen in all age groups with highest decline noted in those aged 75-84 years (928 [95% CI 914-943] to 698 [95% CI 686-709]; -25% in first-ever ischemic stroke and 361 [95% CI 351-370] to 219 [95% CI 213-226]; -39% in recurrent ischemic stroke) and ≥85 years (1,674 [95% CI 1,645-1,703] to 1,295 [95% CI 1,270-1,320]; -23% in first-ever ischemic stroke and 683 [95% CI 664-702] to 423 [95% CI 409-437]; -38% in recurrent ischemic stroke). Treatment with anticoagulants in patients with atrial fibrillation and lipid-lowering drugs increased considerably in patients with first-ever and recurrent ischemic stroke both at admission and discharge during the study period.

conclusionWhereas both first-ever and recurrent ischemic stroke rates declined in Sweden between 2010 and 2019, the proportional decline was almost double for recurrent ischemic stroke than for first-ever ischemic stroke and most pronounced in the elderly. Increased use of secondary preventive drugs, in particular anticoagulants in atrial fibrillation, appears to have contributed, but further studies on precise causes for the decline in recurrent ischemic stroke are needed.

Indexed as

Atrial FibrillationIschemic StrokeStrokeAdolescentAgedAnticoagulantsHumansIncidenceRegistriesSwedenAnticoagulantsEpidemiologyIncidenceIschemic strokeRecurrent strokeStroke registrySweden

Identifiers

PMID36223758
PMCPMC9945185
OpenAlexW4304807451

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC
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.