Evidence map›Paper›PMID 31619239›Full record

SynthesisBMC veterinary research2019

A systematic review and meta-analyses of risk factors associated with lameness in dairy cows.

Andreas W Oehm, Gabriela Knubben-Schweizer, Anna Rieger, Alexander Stoll, Sonja Hartnack

Abstract readMeta-AnalysisSystematic Review
In one paragraph

Synthesis in BMC veterinary research, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 39 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
39citing 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

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

  1. Pooled it
  2. Pooled it
  3. Article
  4. Risk Factors for Tail Alterations on German Dairy Farms.Animals : an open access journal from MDPI · 2026
    Article
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  7. Review
  8. Article
  9. Article
  10. Review
  11. Article
  12. Article
  13. Article
  14. Article
  15. Chiropractic Treatment of Dairy Cows.Veterinary sciences · 2024
    Article
  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

5 authors.

Andreas W OehmClinic for Ruminants with Ambulatory and Herd Health Services , Ludwig-Maximilians-Universität München, Sonnenstrasse 16, 85764, Oberschleissheim, Germany. A.Oehm@med.vetmed.uni-muenchen.de.ORCID http://orcid.org/0000-0002-2709-8541
Gabriela Knubben-SchweizerClinic for Ruminants with Ambulatory and Herd Health Services , Ludwig-Maximilians-Universität München, Sonnenstrasse 16, 85764, Oberschleissheim, Germany.
Anna RiegerClinic for Ruminants with Ambulatory and Herd Health Services , Ludwig-Maximilians-Universität München, Sonnenstrasse 16, 85764, Oberschleissheim, Germany.
Alexander StollClinic for Ruminants with Ambulatory and Herd Health Services , Ludwig-Maximilians-Universität München, Sonnenstrasse 16, 85764, Oberschleissheim, Germany.
Sonja HartnackSection of Epidemiology, Vetsuisse Faculty, University of Zurich, Winterthurerstrasse 270, CH 8057, Zürich, Switzerland.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundLameness in dairy cows has been an ongoing concern of great relevance to animal welfare and productivity in modern dairy production. Many studies have examined associations between various factors related to housing, management, and the individual animal and the occurrence of lameness. The objective of this systematic review was to answer the research question "what are risk factors associated with lameness in dairy cows that are housed in free stall barns or tie stall facilities". Furthermore, we performed a synthesis of current evidence on certain risk factors by means of a meta-analysis to illustrate the strength of their association with bovine lameness.

resultsFollowing pre-defined procedures and inclusion criteria in accordance with the PRISMA statement, two observers independently included 53 articles out of a pool of 1941 articles which had been retrieved by a broad literature research in a first step. 128 factors that have been associated with lameness were identified in those papers. Meta-analyses were conducted for five factors presented in six different studies: Body condition score, presence of claw overgrowth, days in milk, herd size, and parity. Results indicated that a body condition score of ≤2.5/5 is associated with increased odds of lameness. A higher risk of being lame was found for the presence of claw overgrowth, the first 120 days in milk, larger herd sizes, and increasing parity. Throughout the study, we encountered profound difficulties in retrieving data and information of sufficient quality from primary articles as well as in recovering comparable studies.

conclusionsWe learned that an abundance of literature on bovine lameness exists. To adequately address a problem of this importance to both animal welfare and economic viability, solid evidence is required in the future to develop effective intervention strategies. Therefore, a consistent working definition of lameness and specific risk factors should be an option to consider.

Indexed as

AnimalsBody CompositionCattleCattle DiseasesDairyingFemaleHoof and ClawLactationLameness, AnimalParityRisk FactorsBovineCattleCow welfareGait disturbanceLocomotion

Identifiers

PMID31619239
PMCPMC6796431

What OpenQuestion holds

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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.