Evidence map›Paper›PMID 15851712›Full record

ArticleCMAJ : Canadian Medical Association journal = journal de l'Association medicale canadienne2005

Effectiveness of statins for secondary prevention in elderly patients after acute myocardial infarction: an evaluation of class effect.

Zheng Zhou, Elham Rahme, Michal Abrahamowicz, Jack V Tu, Mark J Eisenberg, Karin Humphries, Peter C Austin, Louise Pilote

Open access · goldAbstract readComparative Study
In one paragraph

Article in CMAJ : Canadian Medical Association journal = journal de l'Association medicale canadienne, 2005. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 20 papers.

0numbers the graph read from it
0cells of the map it votes in
20citing papers in PubMed
7.0field-weighted citation impact, top 3% 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

20 citing papers in PubMed, 52 citations in OpenAlex.

  1. Frailty and Cardiovascular Risk.European cardiology · 2026
    Review
  2. Article
  3. Article
  4. Article
  5. Article
  6. Article
  7. Review
  8. Incomparable effectiveness--apples to apples?Mayo Clinic proceedings · 2010
    Article
  9. Article
  10. Management of cardiovascular disease in patients with diabetes: the 2008 Canadian Diabetes Association guidelines.CMAJ : Canadian Medical Association journal = journal de l'Association medicale canadienne · 2008
    Review
  11. Effectiveness of antiresorptive agents in the prevention of recurrent hip fractures.Osteoporosis international : a journal established as result of cooperation between the European Foundation for Osteoporosis and the National Osteoporosis Foundation of the USA · 2007
    Article
  12. Article
  13. Article
  14. Article
  15. Sex differences in the effectiveness of statins after myocardial infarction.CMAJ : Canadian Medical Association journal = journal de l'Association medicale canadienne · 2007
    Article
  16. Effectiveness of bisphosphonates on nonvertebral and hip fractures in the first year of therapy: the risedronate and alendronate (REAL) cohort study.Osteoporosis international : a journal established as result of cooperation between the European Foundation for Osteoporosis and the National Osteoporosis Foundation of the USA · 2007
    Article
  17. Review
  18. An evaluation of class effect.CMAJ : Canadian Medical Association journal = journal de l'Association medicale canadienne · 2006
    Article
  19. Article
  20. Are the benefits of statins a class effect?CMAJ : Canadian Medical Association journal = journal de l'Association medicale canadienne · 2005
    Article
4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

8 authors at 1 institution in 1 country.

Zheng ZhouDepartment of Epidemiology and Biostatistics, McGill University, Montréal, Que.
Elham Rahme
Michal Abrahamowicz
Jack V Tu
Mark J Eisenberg
Karin Humphries
Peter C Austin
Louise Pilote
McGill University · CA

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundClinical trials have shown the benefits of statins after acute myocardial infarction (AMI). However, it is unclear whether different statins exert a similar effect in reducing the incidence of recurrent AMI and death when used in clinical practice.

methodsWe conducted a retrospective cohort study (1997-2002) to compare 5 statins using data from medical administrative databases in 3 provinces (Quebec, Ontario and British Columbia). We included patients aged 65 years and over who were discharged alive after their first AMI-related hospital stay and who began statin treatment within 90 days after discharge. The primary end point was the combined outcome of recurrent AMI or death from any cause. The secondary end point was death from any cause. Adjusted hazard ratios (HRs) for each statin compared with atorvastatin as the reference drug were estimated using Cox proportional hazards regression analysis.

resultsA total of 18,637 patients were prescribed atorvastatin (n = 6420), pravastatin (n = 4480), simvastatin (n = 5518), lovastatin (n = 1736) or fluvastatin (n = 483). Users of different statins showed similar baseline characteristics and patterns of statin use. The adjusted HRs (and 95% confidence intervals) for the combined outcome of AMI or death showed that each statin had similar effects when compared with atorvastatin: pravastatin 1.00 (0.90-1.11), simvastatin 1.01 (0.91-1.12), lovastatin 1.09 (0.95-1.24) and fluvastatin 1.01 (0.80-1.27). The results did not change when death alone was the end point, nor did they change after adjustment for initial daily dose or after censoring of patients who switched or stopped the initial statin treatment.

interpretationOur results suggest that, under current usage, statins are equally effective for secondary prevention in elderly patients after AMI.

Indexed as

AgedAtorvastatinCohort StudiesFatty Acids, MonounsaturatedFemaleFluvastatinHeptanoic AcidsHumansHydroxymethylglutaryl-CoA Reductase InhibitorsIndolesLovastatinMaleMortalityMyocardial InfarctionPatient CompliancePravastatinAtorvastatinFatty Acids, MonounsaturatedFluvastatinHeptanoic AcidsHydroxymethylglutaryl-CoA Reductase InhibitorsIndolesLovastatinPravastatinPyrrolesSimvastatin

Identifiers

PMID15851712
PMCPMC557070
OpenAlexW2118243287

What Socratic 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 Socratic graph.