The DOI matches its Crossref record; 34 of the 34 references it cites were found in a registry or an index.
Is the prevalence of Klinefelter syndrome increasing?
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
Evidence for decreasing quality of semen during past 50 years.
Carlsen, E., Giwercman, A., Keiding, N., & Skakkebaek, N. E. (1992) · BMJ · doi:10.1136/bmj.305.6854.609 · Cited by 2,768
Nielsen, J., & Wohlert, M. (1991) · Human Genetics · doi:10.1007/bf01213097 · Cited by 1,193
A cytogenetic study of 1000 spontaneous abortions
HASSOLD, T., CHEN, N., FUNKHOUSER, J., JOOSS, T., MANUEL, B., MATSUURA, J., MATSUYAMA, A., WILSON, C., Yamane, J. A., & JACOBS, P. A. (1980) · Annals of Human Genetics · doi:10.1111/j.1469-1809.1980.tb00955.x · Cited by 676
Self-citationA cytogenetic survey of 14,069 newborn infants: I. Incidence of chromosome abnormalities
Hamerton, J. L., Canning, N., Ray, M., & Smith, S. (1975) · Clinical Genetics · doi:10.1111/j.1399-0004.1975.tb01498.x · Cited by 565
Hunt, P. A., & Hassold, T. J. (2002) · Science · doi:10.1126/science.1071907 · Cited by 463
Irvine, S., Cawood, E., Richardson, D., MacDonald, E., & Aitken, J. (1996) · BMJ · doi:10.1136/bmj.312.7029.467 · Cited by 442
A cytogenetic survey of 11,680 newborn infants
JACOBS, P. A., MELVILLE, M., RATCLIFFE, S., KEAY, A. J., & SYME, J. (1974) · Annals of Human Genetics · doi:10.1111/j.1469-1809.1974.tb01843.x · Cited by 430
Self-citationFerguson‐Smith, M. A., & Yates, J. R. W. (1984) · Prenatal Diagnosis · doi:10.1002/pd.1970040704 · Cited by 387
High frequency of sub-optimal semen quality in an unselected population of young men
Andersen, A. G. (2000) · Human Reproduction · doi:10.1093/humrep/15.2.366 · Cited by 323
Anatomic and chromosomal anomalies in 639 spontaneous abortuses
Kajii, T., Ferrier, A., Niikawa, N., Takahara, H., Ohama, K., & Avirachan, S. (1980) · Human Genetics · doi:10.1007/bf00329132 · Cited by 307
Cited by
Incidence of Fragile X Syndrome by Newborn Screening for Methylated FMR1 DNA
Coffee, B., Keith, K., Albizua, I., Malone, T., Mowrey, J., Sherman, S. L., & Warren, S. T. (2009) · The American Journal of Human Genetics · doi:10.1016/j.ajhg.2009.09.007 · Cited by 436
Klinefelter syndrome (KS): genetics, clinical phenotype and hypogonadism
On behalf of the Klinefelter ItaliaN Group (KING), Bonomi, M., Rochira, V., Pasquali, D., Balercia, G., Jannini, E. A., & Ferlin, A. (2017) · Journal of Endocrinological Investigation · doi:10.1007/s40618-016-0541-6 · Cited by 365
LEGGETT, V., JACOBS, P., NATION, K., SCERIF, G., & BISHOP, D. V. M. (2010) · Developmental Medicine & Child Neurology · doi:10.1111/j.1469-8749.2009.03545.x · Cited by 291
Self-citationSex-biased chromatin and regulatory cross-talk between sex chromosomes, autosomes, and mitochondria
Silkaitis, K., & Lemos, B. (2014) · Biology of Sex Differences · doi:10.1186/2042-6410-5-2 · Cited by 39
“Triple X syndrome in females has a variable prevalence is about 1 per 1,000 female births [71].”
BackgroundMatsumoto, A. M., & Bremner, W. J. (2011) · Williams Textbook of Endocrinology · doi:10.1016/b978-1-4377-0324-5.00019-5 · Cited by 18
Metadata
- Authors
- Morris, J. K., Alberman, E., Scott, C., & Jacobs, P.
- Venue
- European Journal of Human Genetics
- Published
- 2007-11-14
- Volume
- 16
- Issue
- 2
- Pages
- 163-170
- ISSN
- 1018-4813 (ISSN-L)
- 1476-5438
- OpenAlex
- W2027981626
- Cited by
- 290
- References
- 34
- FWCI
- 5.69
- 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: Is the prevalence of Klinefelter syndrome increasing? https://app.cochat.ai/papers/10.1038/sj.ejhg.5201956
- The paper
- Morris, J. K., Alberman, E., Scott, C., & Jacobs, P. (2008). Is the prevalence of Klinefelter syndrome increasing? European Journal of Human Genetics. https://doi.org/10.1038/sj.ejhg.5201956
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.