Meta-analysis of the literature or of individual patient data: is there a difference?

Beta blockade during and after myocardial infarction: An overview of the randomized trials

Yusuf, S., Peto, R., Lewis, J., Collins, R., & Sleight, P. (1985) · Progress in Cardiovascular Diseases · doi:10.1016/s0033-0620(85)80003-7 · Cited by 3,205

Publication bias in clinical research

Easterbrook, P. J., Gopalan, R., Berlin, J. A., & Matthews, D. R. (1991) · The Lancet · doi:10.1016/0140-6736(91)90201-y · Cited by 3,109

Publication bias: the case for an international registry of clinical trials.

Simes, R. J. (1986) · Journal of Clinical Oncology · doi:10.1200/jco.1986.4.10.1529 · Cited by 747

Funnel plots for detecting bias in meta-analysis

Sterne, J. A. C., & Egger, M. (2001) · Journal of Clinical Epidemiology · doi:10.1016/s0895-4356(01)00377-8 · Cited by 3,779

Suicide as an outcome for mental disorders: A meta-analysis

Harris, E. C., & Barraclough, B. (1997) · British Journal of Psychiatry · doi:10.1192/bjp.170.3.205 · Cited by 2,589

Comprehensive geriatric assessment: a meta-analysis of controlled trials

Stuck, A. E., Siu, A. L., Wieland, G. D., Rubenstein, L. Z., & Adams, J. (1993) · The Lancet · doi:10.1016/0140-6736(93)92884-v · Cited by 1,974

Physician advice for smoking cessation

Stead, L. F., Buitrago, D., Preciado, N., Sanchez, G., Hartmann-Boyce, J., & Lancaster, T. (2013) · Cochrane Database of Systematic Reviews · doi:10.1002/14651858.cd000165.pub4 · Cited by 1,955

Excess mortality of mental disorder

Harris, C., & Barraclough, B. (1998) · British Journal of Psychiatry · doi:10.1192/bjp.173.1.11 · Cited by 1,881

How do mindfulness-based cognitive therapy and mindfulness-based stress reduction improve mental health and wellbeing? A systematic review and meta-analysis of mediation studies

Gu, J., Strauss, C., Bond, R., & Cavanagh, K. (2015) · Clinical Psychology Review · doi:10.1016/j.cpr.2015.01.006 · Cited by 1,712

Meta-analysis of individual participant data: rationale, conduct, and reporting

Riley, R. D., Lambert, P. C., & Abo-Zaid, G. (2010) · BMJ · doi:10.1136/bmj.c221 · Cited by 1,701

Stress and cardiovascular disease

Steptoe, A., & Kivimäki, M. (2012) · Nature Reviews Cardiology · doi:10.1038/nrcardio.2012.45 · Cited by 1,321

Evaluation of networks of randomized trials

Salanti, G., Higgins, J. P., Ades, A., & Ioannidis, J. P. (2008) · Statistical Methods in Medical Research · doi:10.1177/0962280207080643 · Cited by 1,078

Systematic Review: Why sources of heterogeneity in meta-analysis should be investigated

Thompson, S. G. (1994) · BMJ · doi:10.1136/bmj.309.6965.1351 · Cited by 1,017

Nicotine replacement therapy for smoking cessation

Silagy, C., Lancaster, T., Stead, L., Mant, D., & Fowler, G. (2004) · Cochrane Database of Systematic Reviews · doi:10.1002/14651858.cd000146.pub2 · Cited by 972

Preoperative chemotherapy for non-small-cell lung cancer: a systematic review and meta-analysis of individual participant data

(2014) · The Lancet · doi:10.1016/s0140-6736(13)62159-5 · Cited by 884

Prognostic accuracy of day versus night ambulatory blood pressure: a cohort study

Boggia, J., Li, Y., Thijs, L., Hansen, T. W., Kikuya, M., Björklund-Bodegård, K., Richart, T., Ohkubo, T., Kuznetsova, T., Torp-Pedersen, C., et al. (2007) · The Lancet · doi:10.1016/s0140-6736(07)61538-4 · Cited by 887

Excess mortality of schizophrenia: A meta-analysis

Brown, S. (1997) · British Journal of Psychiatry · doi:10.1192/bjp.171.6.502 · Cited by 869

A new meta-analytic method for neuroimaging studies that combines reported peak coordinates and statistical parametric maps

Radua, J., Mataix-Cols, D., Phillips, M. L., El-Hage, W., Kronhaus, D. M., Cardoner, N., & Surguladze, S. (2012) · European Psychiatry · doi:10.1016/j.eurpsy.2011.04.001 · Cited by 765

Efficacy of Self-guided Internet-Based Cognitive Behavioral Therapy in the Treatment of Depressive Symptoms: A Meta-analysis of Individual Participant Data

Karyotaki, E., Riper, H., Twisk, J., Hoogendoorn, A., Kleiboer, A., Mira, A., Mackinnon, A., Meyer, B., Botella, C., Littlewood, E., et al. (2017) · JAMA Psychiatry · doi:10.1001/jamapsychiatry.2017.0044 · Cited by 691

Prevention of diarrhea and pneumonia by zinc supplementation in children in developing countries: Pooled analysis of randomized controlled trials

Bhutta, Z. A., Black, R. E., Brown, K. H., Gardner, J. M., Gore, S., Hidayat, A., Khatun, F., Martorell, R., Ninh, N. X., Penny, M. E., et al. (1999) · The Journal of Pediatrics · doi:10.1016/s0022-3476(99)70086-7 · Cited by 731

Nicotine replacement therapy for smoking cessation

Stead, L. F., Perera, R., Bullen, C., Mant, D., & Lancaster, T. (2008) · Cochrane Database of Systematic Reviews · doi:10.1002/14651858.cd000146.pub3 · Cited by 721

Bayesian approaches to randomized trials

Spiegelhalter, D. J., Freedman, L. S., & Parmar, M. K. B. (1994) · Journal of the Royal Statistical Society. Series A (Statistics in Society) · doi:10.2307/2983527 · Cited by 720

Influence of reported study design characteristics on intervention effect estimates from randomised controlled trials: combined analysis of meta-epidemiological studies

Savović, J., Jones, H., Altman, D., Harris, R., Jűni, P., Pildal, J., Als-Nielsen, B., Balk, E., Gluud, C., Gluud, L., et al. (2012) · Health Technology Assessment · doi:10.3310/hta16350 · Cited by 668

Deleterious clinical effects of transfusion-associated immunomodulation: fact or fiction?

Vamvakas, E. C., & Blajchman, M. A. (2001) · Blood · doi:10.1182/blood.v97.5.1180 · Cited by 423

Assessment of publication bias, selection bias, and unavailable data in meta-analyses using individual participant data: a database survey

Ahmed, I., Sutton, A. J., & Riley, R. D. (2012) · BMJ · doi:10.1136/bmj.d7762 · Cited by 404

Demonstration of deductive meta-analysis: ethanol intake and risk of myocardial infarction

Maclure, M. (1993) · Epidemiologic Reviews · doi:10.1093/oxfordjournals.epirev.a036124 · Cited by 397

Influence of initial severity of depression on effectiveness of low intensity interventions: meta-analysis of individual patient data

Bower, P., Kontopantelis, E., Sutton, A., Kendrick, T., Richards, D. A., Gilbody, S., Knowles, S., Cuijpers, P., Andersson, G., Christensen, H., et al. (2013) · BMJ · doi:10.1136/bmj.f540 · Cited by 341

The relative benefits of meta-analysis conducted with individual participant data versus aggregated data

Cooper, H., & Patall, E. A. (2009) · Psychological Methods · doi:10.1037/a0015565 · Cited by 339

Systematic review and meta-analysis of randomised, phase II/III trials adding bevacizumab to platinum-based chemotherapy as first-line treatment in patients with advanced non-small-cell lung cancer

Soria, J.-C., Mauguen, A., Reck, M., Sandler, A. B., Saijo, N., Johnson, D. H., Burcoveanu, D., Fukuoka, M., Besse, B., & Pignon, J.-P. (2013) · Annals of Oncology · doi:10.1093/annonc/mds590 · Cited by 314

Blood pressure lowering in patients without prior cerebrovascular disease for prevention of cognitive impairment and dementia

McGuinness, B., Todd, S., Passmore, P., & Bullock, R. (2009) · Cochrane Database of Systematic Reviews · doi:10.1002/14651858.cd004034.pub3 · Cited by 315

Endometrial Thickness Measurement for Detecting Endometrial Cancer in Women With Postmenopausal Bleeding: A Systematic Review and Meta-Analysis

Timmermans, A., Opmeer, B. C., Khan, K. S., Bachmann, L. M., Epstein, E., Clark, T. J., Gupta, J. K., Bakour, S. H., van den Bosch, T., van Doorn, H. C., et al. (2010) · Obstetrics & Gynecology · doi:10.1097/aog.0b013e3181e3e7e8 · Cited by 312

Prognosis of White-Coat and Masked Hypertension: International Database of Home Blood Pressure in Relation to Cardiovascular Outcome

Stergiou, G. S., Asayama, K., Thijs, L., Kollias, A., Niiranen, T. J., Hozawa, A., Boggia, J., Johansson, J. K., Ohkubo, T., Tsuji, I., et al. (2014) · Hypertension · doi:10.1161/hypertensionaha.113.02741 · Cited by 304

A systematic review of the role of etoposide and cisplatin in the chemotherapy of small cell lung cancer with methodology assessment and meta-analysis

Mascaux, C., Paesmans, M., Berghmans, T., Branle, F., Lafitte, J. J., Lemaı̂tre, F., Meert, A. P., Vermylen, P., & Sculier, J. P. (2000) · Lung Cancer · doi:10.1016/s0169-5002(00)00127-6 · Cited by 270

The strengths and limitations of meta-analyses based on aggregate data

Lyman, G. H., & Kuderer, N. M. (2005) · BMC Medical Research Methodology · doi:10.1186/1471-2288-5-14 · Cited by 250

Investigating patient exclusion bias in meta-analysis

Tierney, J. F. (2004) · International Journal of Epidemiology · doi:10.1093/ije/dyh300 · Cited by 221

Baseline Depression Severity as Moderator of Depression Outcomes Between Cognitive Behavioral Therapy vs Pharmacotherapy: An Individual Patient Data Meta-analysis

Weitz, E. S., Hollon, S. D., Twisk, J., van Straten, A., Huibers, M. J. H., David, D., DeRubeis, R. J., Dimidjian, S., Dunlop, B. W., Cristea, I. A., et al. (2015) · JAMA Psychiatry · doi:10.1001/jamapsychiatry.2015.1516 · Cited by 187

Meta-analysis: Unresolved issues and future developments

Smith, G. D., & Egger, M. (1998) · BMJ · doi:10.1136/bmj.316.7126.221 · Cited by 175

Subclinical thyroid dysfunction and mortality: an estimate of relative and absolute excess all-cause mortality based on time-to-event data from cohort studies

Haentjens, P., Van Meerhaeghe, A., Poppe, K., & Velkeniers, B. (2008) · European Journal of Endocrinology · doi:10.1530/eje-08-0110 · Cited by 174

Is self-guided internet-based cognitive behavioural therapy (iCBT) harmful? An individual participant data meta-analysis

Karyotaki, E., Kemmeren, L., Riper, H., Twisk, J., Hoogendoorn, A., Kleiboer, A., Mira, A., Mackinnon, A., Meyer, B., Botella, C., et al. (2018) · Psychological Medicine · doi:10.1017/s0033291718000648 · Cited by 167

Meta-analysis when only the median survival times are known: A comparison with individual patient data results.

Michiels, S., Piedbois, P., Burdett, S., Syz, N., Stewart, L., & Pignon, J.-P. (2005) · International Journal of Technology Assessment in Health Care · doi:10.1017/s0266462305050154 · Cited by 154

Nursing interventions for smoking cessation

Rice, V., & Stead, L. (2004) · Cochrane Database of Systematic Reviews · doi:10.1002/14651858.cd001188.pub2 · Cited by 119

Systematic Reviews: Obtaining data from randomised controlled trials: how much do we need for reliable and informative meta-analyses?

Clarke, M. J., & Stewart, L. A. (1994) · BMJ · doi:10.1136/bmj.309.6960.1007 · Cited by 117

Cherry-picking by trialists and meta-analysts can drive conclusions about intervention efficacy

Mayo-Wilson, E., Li, T., Fusco, N., Bertizzolo, L., Canner, J. K., Cowley, T., Doshi, P., Ehmsen, J., Gresham, G., Guo, N., et al. (2017) · Journal of Clinical Epidemiology · doi:10.1016/j.jclinepi.2017.07.014 · Cited by 108

Maternal adiposity as an independent risk factor for pre‐eclampsia: a meta‐analysis of prospective cohort studies

Wang, Z., Wang, P., Liu, H., He, X., Zhang, J., Yan, H., Xu, D., & Wang, B. (2013) · Obesity Reviews · doi:10.1111/obr.12025 · Cited by 111

Practical guidance for using multiple data sources in systematic reviews and meta‐analyses (with examples from the MUDS study)

Mayo‐Wilson, E., Li, T., Fusco, N., Dickersin, K., & for the MUDS investigators (2018) · Research Synthesis Methods · doi:10.1002/jrsm.1277 · Cited by 114

Association Between Chronic Physical Conditions and the Effectiveness of Collaborative Care for Depression: An Individual Participant Data Meta-analysis

Panagioti, M., Bower, P., Kontopantelis, E., Lovell, K., Gilbody, S., Waheed, W., Dickens, C., Archer, J., Simon, G., Ell, K., et al. (2016) · JAMA Psychiatry · doi:10.1001/jamapsychiatry.2016.1794 · Cited by 94

Maintenance chemotherapy for small cell lung cancer: a critical review of the literature

Sculier, J. P., Berghmans, T., Castaigne, C., Luce, S., Sotiriou, C., Vermylen, P., & Paesmans, M. (1998) · Lung Cancer · doi:10.1016/s0169-5002(97)00084-6 · Cited by 92

Risk Stratification by Self-Measured Home Blood Pressure across Categories of Conventional Blood Pressure: A Participant-Level Meta-Analysis

Asayama, K., Thijs, L., Brguljan-Hitij, J., Niiranen, T. J., Hozawa, A., Boggia, J., Aparicio, L. S., Hara, A., Johansson, J. K., Ohkubo, T., et al. (2014) · PLoS Medicine · doi:10.1371/journal.pmed.1001591 · Cited by 87

Cost effectiveness of guided internet-based interventions for depression in comparison with control conditions: an individual–participant data meta-analysis

Kolovos, S., van Dongen, J. M., Riper, H., Buntrock, C., Cuijpers, P., Ebert, D. D., Geraedts, A. S., Kenter, R. M., Nobis, S., Smith, A., et al. (2018) · Depression and Anxiety · doi:10.1002/da.22714 · Cited by 63

Cholinesterase Inhibitors for Treatment of Psychotic Symptoms in Alzheimer Disease and Parkinson Disease: A Meta-analysis

d’Angremont, E., Begemann, M. J. H., van Laar, T., & Sommer, I. E. C. (2023) · JAMA Neurology · doi:10.1001/jamaneurol.2023.1835 · Cited by 71

Avoiding Methodological Biases in Meta-Analysis: Use of Online Versus Offline Individual Participant Data (IPD) in Educational Psychology

Kaufmann, E., Reips, U.-D., & Maag Merki, K. (2016) · Zeitschrift für Psychologie · doi:10.1027/2151-2604/a000251 · Cited by 31

Evaluating treatments for posttraumatic stress disorder, alcohol and other drug use disorders using meta-analysis of individual patient data: Design and methodology of a virtual clinical trial

Saavedra, L. M., Morgan-López, A. A., Hien, D. A., López-Castro, T., Ruglass, L. M., Back, S. E., Fitzpatrick, S., Norman, S. B., Killeen, T. K., Ebrahimi, C. T., et al. (2021) · Contemporary Clinical Trials · doi:10.1016/j.cct.2021.106479 · Cited by 31

Predicting response to a cognitive-behavioral approach to treating low back pain: Secondary analysis of the BeST data set

Underwood, M., Mistry, D., Lall, R., & Lamb, S. (2011) · Arthritis Care & Research · doi:10.1002/acr.20518 · Cited by 23

No consistent evidence of data availability bias existed in recent individual participant data meta-analyses: a meta-epidemiological study

Tsujimoto, Y., Fujii, T., Onishi, A., Omae, K., Luo, Y., Imai, H., Takahashi, S., Itaya, T., Pinson, C., Nevitt, S. J., et al. (2020) · Journal of Clinical Epidemiology · doi:10.1016/j.jclinepi.2019.10.004 · Cited by 17

Continuous positive airway pressure therapy reduces the levels of catecholamines and blood pressure in pseudophaeochromocytoma with coexisting obstructive sleep apnoea

Ken-Dror, G., Wood, M., Fluck, D., Sharma, P., Fry, C. H., & Han, T. S. (2021) · JRSM Cardiovascular Disease · doi:10.1177/2048004021992191 · Cited by 2