The DOI matches its Crossref record; 45 of the 45 references it cites were found in a registry or an index.
Non-steroidal anti-inflammatory drugs, including cyclo-oxygenase-2 inhibitors, in osteoarthritic knee pain: meta-analysis of randomised placebo controlled trials
Open accessAbstract
OBJECTIVE: To estimate the analgesic efficacy of non-steroidal anti-inflammatory drugs (NSAIDs), including selective cyclo-oxygenase-2 inhibitors (coxibs), in patients with osteoarthritis of the knee. DESIGN: Systematic review and meta-analysis of randomised placebo controlled trials. STUDIES REVIEWED: 23 trials including 10 845 patients, median age of 62.5 years. 7807 patients received adequate doses of NSAIDs and 3038 received placebo. The mean weighted baseline pain score was 64.2 mm on 100 mm visual analogue scale (VAS), and average duration of symptoms was 8.2 years. MAIN OUTCOME MEASURE: Change in overall intensity of pain. RESULTS: Methodological quality of trials was acceptable, but 13 trials excluded patients before randomisation if they did not respond to NSAIDs. One trial provided long term data for pain that showed no significant effect of NSAIDs compared with placebo at one to four years. The pooled difference for pain on visual analogue scale in all included trials was 10.1 mm (95% confidence interval 7.4 to 12.8) or 15.6% better than placebo after 2-13 weeks. The results were heterogeneous, and the effect size for pain reduction was 0.32 (0.24 to 0.39) in a random effects model. In 10 trials that did not exclude non-responders to NSAID treatment the results were homogeneous, with an effect size for pain reduction of 0.23 (0.15 to 0.31). CONCLUSION: NSAIDs can reduce short term pain in osteoarthritis of the knee slightly better than placebo, but the current analysis does not support long term use of NSAIDs for this condition. As serious adverse effects are associated with oral NSAIDs, only limited use can be recommended.
Overview
The claims and statistics of this paper haven’t been checked yet.
Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.
Integrity signals
Registry
Cites
Statistics
Verification
Claims the paper makes
The claims and statistics of this paper haven’t been checked yet.
Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.
Self-check
Percentages, sums and reported differences re-computed from the paper’s own numbers.
The self-check needs the paper’s full text.
Citations
Cites
Altman, R., Asch, E., Bloch, D., Bole, G., Borenstein, D., Brandt, K., Christy, W., Cooke, T. D., Greenwald, R., Hochberg, M., et al. (1986) · Arthritis & Rheumatism · doi:10.1002/art.1780290816 · Cited by 6,777
Osteoarthritis: New Insights. Part 1: The Disease and Its Risk Factors
Felson, D. T., Lawrence, R. C., Dieppe, P. A., Hirsch, R., Helmick, C. G., Jordan, J. M., Kington, R. S., Lane, N. E., Nevitt, M. C., Zhang, Y., et al. (2000) · Annals of Internal Medicine · doi:10.7326/0003-4819-133-8-200010170-00016 · Cited by 2,519
Effect Sizes for Interpreting Changes in Health Status
Kazis, L. E., Anderson, J. J., & Meenan, R. F. (1989) · Medical Care · doi:10.1097/00005650-198903001-00015 · Cited by 2,401
Jordan, K. M., Arden, N. K., Doherty, M., Bannwarth, B., Bijlsma, J. W. J., Dieppe, P., Gunther, K., Hauselmann, H., Herrero-Beaumont, G., Kaklamanis, P., et al. (2003) · Annals of the Rheumatic Diseases · doi:10.1136/ard.2003.011742 · Cited by 2,048
Review papers : The statistical basis of meta-analysis
Fleiss, J. (1993) · Statistical Methods in Medical Research · doi:10.1177/096228029300200202 · Cited by 1,281
Felson, D. T., & McAlindon, T. (2002) · Annals of Internal Medicine · doi:10.7326/0003-4819-136-1-200201010-00019 · Cited by 1,122
Song, F., Altman, D. G., Glenny, A.-M., & Deeks, J. J. (2003) · BMJ · doi:10.1136/bmj.326.7387.472 · Cited by 943
Whelton, A. (1999) · The American Journal of Medicine · doi:10.1016/s0002-9343(99)00113-8 · Cited by 704
Radebold, A., Cholewicki, J., Polzhofer, G. K., & Greene, H. S. (2001) · Spine · doi:10.1097/00007632-200104010-00004 · Cited by 584
Cowan, S. M., Bennell, K. L., Hodges, P. W., Crossley, K. M., & McConnell, J. (2001) · Archives of Physical Medicine and Rehabilitation · doi:10.1053/apmr.2001.19022 · Cited by 497
Cited by
Zhang, W., Moskowitz, R. W., Nuki, G., Abramson, S., Altman, R. D., Arden, N., Bierma-Zeinstra, S., Brandt, K. D., Croft, P., Doherty, M., et al. (2008) · Osteoarthritis and Cartilage · doi:10.1016/j.joca.2007.12.013 · Cited by 2,796
Pharmacological Management of Persistent Pain in Older Persons
(2009) · Pain Medicine · doi:10.1111/j.1526-4637.2009.00699.x · Cited by 916
Bruyère, O., Honvo, G., Veronese, N., Arden, N. K., Branco, J., Curtis, E. M., Al-Daghri, N. M., Herrero-Beaumont, G., Martel-Pelletier, J., Pelletier, J.-P., et al. (2019) · Seminars in Arthritis and Rheumatism · doi:10.1016/j.semarthrit.2019.04.008 · Cited by 695
Tanezumab for the Treatment of Pain from Osteoarthritis of the Knee
Lane, N. E., Schnitzer, T. J., Birbara, C. A., Mokhtarani, M., Shelton, D. L., Smith, M. D., & Brown, M. T. (2010) · New England Journal of Medicine · doi:10.1056/nejmoa0901510 · Cited by 674
Choi, W.-J., Hwang, S.-J., Song, J.-G., Leem, J.-G., Kang, Y.-U., Park, P.-H., & Shin, J.-W. (2011) · Pain · doi:10.1016/j.pain.2010.09.029 · Cited by 457
Metadata
- Authors
- Bjordal, J. M., Ljunggren, A. E., Klovning, A., & Slørdal, L.
- Venue
- BMJ
- Publisher
- BMJ
- Published
- 2004-11-23
- Volume
- 329
- Issue
- 7478
- Pages
- 1317
- ISSN
- 0007-1447 (ISSN-L)
- 0959-8138
- 1468-5833
- OpenAlex
- W2106903173
- Cited by
- 454
- References
- 45
- FWCI
- 3.51
- Type
- journal article
- Language
- en
- Open access
- bronze
About these checks
Registry, retraction, Cites and statistics results are computed, not judged, with one exception: a printed reference that no index lists is read once by a model before it counts as a citation error. Claims are extracted by a model and kept only when their quote appears verbatim in the text; each cited source is then checked, with a model’s help, for whether it says what the claim relies on. Those verdicts can be wrong — read the claim’s quote and the cited source before relying on one.
Statistics and arithmetic are recomputed, not judged.
Confidence bands are shown only for fields calibrated on our annotated test set. None is calibrated yet, so no band is shown.
What counts as a claim ›How we measure confidence ›How we check this ›
Are you an author, or do you see a problem with this page? Request a review
How to cite
Cite CoChat for the checks on this page, and the paper for its own findings.
- This page
- CoChat. (2026). Citation check: Non-steroidal anti-inflammatory drugs, including cyclo-oxygenase-2 inhibitors, in osteoarthritic knee pain: meta-analysis of randomised placebo controlled trials. https://app.cochat.ai/papers/10.1136/bmj.38273.626655.63
- The paper
- Bjordal, J. M., Ljunggren, A. E., Klovning, A., & Slørdal, L. (2004). Non-steroidal anti-inflammatory drugs, including cyclo-oxygenase-2 inhibitors, in osteoarthritic knee pain: meta-analysis of randomised placebo controlled trials. BMJ. https://doi.org/10.1136/bmj.38273.626655.63
Data sources
Bibliographic data: Semantic Scholar, OpenAlex, Crossref.
Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).
Semantic Scholar’s data is described in: Kinney, R., et al. (2023). The Semantic Scholar Open Data Platform. arXiv:2301.10140.