The DOI matches its Crossref record; 50 of the 50 references it cites were found in a registry or an index.
Informed consent: how much and what do patients understand?
Abstract
OBJECTIVE We sought to evaluate the degree of patients' understanding of several aspects of the informed consent process for surgery and clinical research. METHODS We conducted a systematic search of PubMed (1961-2006) to identify relevant articles. RESULTS We retrieved 23 and 30 eligible for inclusion articles regarding informed consent for surgery and clinical research, respectively. Regarding surgery, adequate overall understanding of the information provided and of the risks associated with surgery was shown in 6 of 21 (29%) and 5 of 14 (36%) studies providing relevant data, respectively. Regarding clinical research, adequate understanding of the aim of the study, the process of randomization, voluntarism, withdrawal, and the risks and the benefits of treatment was shown in 14 of 26 (54%), 4 of 8 (50%), 7 of 15 (47%), 7 of 16 (44%), 8 of 16 (50%), and 4 of 7 (57%) of studies providing relevant data, respectively. Satisfaction by the amount of the given information was shown in 7 of 12 (58%) studies involving surgery and 12 of 15 (80%) studies involving clinical research. CONCLUSIONS Further attention should be drawn on enhancing patients' understanding regarding several components of the informed consent process for surgery and clinical research.
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
Warlow, C. (1991) · The Lancet · doi:10.1016/0140-6736(91)92916-p · Cited by 3,237
Flory, J., & Emanuel, E. (2004) · JAMA · doi:10.1001/jama.292.13.1593 · Cited by 1,067
Sicard, G. A. (1992) · Journal of Vascular Surgery · doi:10.1016/0741-5214(92)90479-r · Cited by 871
Quality of informed consent in cancer clinical trials: a cross-sectional survey
Joffe, S., Cook, E. F., Cleary, P. D., Clark, J. W., & Weeks, J. C. (2001) · The Lancet · doi:10.1016/s0140-6736(01)06805-2 · Cited by 655
Perceptions of cancer patients and their physicians involved in phase I trials.
Daugherty, C., Ratain, M. J., Grochowski, E., Stocking, C., Kodish, E., Mick, R., & Siegler, M. (1995) · Journal of Clinical Oncology · doi:10.1200/jco.1995.13.5.1062 · Cited by 515
Improvement of informed consent and the quality of consent documents
Jefford, M., & Moore, R. (2008) · The Lancet Oncology · doi:10.1016/s1470-2045(08)70128-1 · Cited by 336
Informed consent: study of quality of information given to participants in a clinical trial.
Lynoe, N., Sandlund, M., Dahlqvist, G., & Jacobsson, L. (1991) · BMJ · doi:10.1136/bmj.303.6803.610 · Cited by 249
Informed consent for investigational chemotherapy: patients' and physicians' perceptions.
Penman, D. T., Holland, J. C., Bahna, G. F., Morrow, G., Schmale, A. H., Derogatis, L. R., Carnrike, C. L., & Cherry, R. (1984) · Journal of Clinical Oncology · doi:10.1200/jco.1984.2.7.849 · Cited by 239
Comprehension during informed consent in a less-developed country
Fitzgerald, D. W., Marotte, C., Verdier, R. I., Johnson, W. D., & Pape, J. W. (2002) · The Lancet · doi:10.1016/s0140-6736(02)11338-9 · Cited by 192
Cited by
Nishimura, A., Carey, J., Erwin, P. J., Tilburt, J. C., Murad, M. H., & McCormick, J. B. (2013) · BMC Medical Ethics · doi:10.1186/1472-6939-14-28 · Cited by 521
Enduring and Emerging Challenges of Informed Consent
Grady, C. (2015) · New England Journal of Medicine · doi:10.1056/nejmra1411250 · Cited by 465
The reality of informed consent: empirical studies on patient comprehension—systematic review
Pietrzykowski, T., & Smilowska, K. (2021) · Trials · doi:10.1186/s13063-020-04969-w · Cited by 259
Research Design in Clinical Psychology
Kazdin, A. E. (2021) · doi:10.1017/9781108993647 · Cited by 240
Patients’ recollection and understanding of informed consent: a literature review
Sherlock, A., & Brownie, S. (2014) · ANZ Journal of Surgery · doi:10.1111/ans.12555 · Cited by 191
Metadata
- Authors
- Falagas, M. E., Korbila, I. P., Giannopoulou, K. P., Kondilis, B. K., & Peppas, G.
- Venue
- The American Journal of Surgery
- Publisher
- Elsevier BV
- Published
- 2009-09
- Volume
- 198
- Issue
- 3
- Pages
- 420-435
- ISSN
- 0002-9610 (ISSN-L)
- OpenAlex
- W2140245628
- Cited by
- 428
- References
- 50
- FWCI
- 8.03
- Type
- journal article
- Language
- en
- Open access
- closed
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: Informed consent: how much and what do patients understand? https://app.cochat.ai/papers/10.1016/j.amjsurg.2009.02.010
- The paper
- Falagas, M. E., Korbila, I. P., Giannopoulou, K. P., Kondilis, B. K., & Peppas, G. (2009). Informed consent: how much and what do patients understand? The American Journal of Surgery. https://doi.org/10.1016/j.amjsurg.2009.02.010
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.