The DOI matches its Crossref record.
Homosexuality in men and number of older brothers
Abstract
OBJECTIVE: This study investigated whether homosexual men have a higher mean birth order than heterosexual men primarily because they have more older brothers or because they have more older siblings of both sexes. METHOD: For the main analyses, 302 heterosexual men were individually matched on year of birth with an equal number of heterosexual men. Each completed a self-administered, anonymous questionnaire concerning family background and other biodemographic information. RESULTS: Logistic regression analysis showed that homosexuality was positively correlated with the proband's number of older brothers but not with older sisters, younger brothers, younger sisters, or parental age at the time of the proband's birth. Each additional older brother increased the odds of homosexuality by 33%. CONCLUSIONS: These results restrict the range of possible theories of the birth order phenomenon to those that can explain not only why older brothers increase the probability of homosexuality in later-born males but also why older sisters neither enhance this effect nor counteract it.
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
No references could be resolved yet.
Research works printed but not linked: 27
- 10.1097/00005053-199201000-00009 · DOI
- 10.1176/ajp.151.9.1375 · DOI
- 10.1037/0012-1649.31.1.22 · DOI
- 10.1192/bjp.134.2.178 · DOI
- 10.1016/S0140-6736(62)91719-1 · DOI
- 10.1097/00005053-199409000-00009 · DOI
- 10.1007/BF01814003 · DOI
- Kallmann FJ, 1952, Am J Hum Genet, 4, 136
- 10.1017/S1120962300017443 · DOI
- Bell AP, 1981, Weinberg MS. Hammersmith SK: Sexual Preference: Its Development in Men and Women
- Chahnazanian A, 1988, Soc Biol, 35, 214
- James WH, 1987, Hum Biol, 59, 721
- 10.1192/bjp.115.523.647 · DOI
- 10.1017/S0021932000009597 · DOI
- 10.1192/bjp.115.523.633 · DOI
- DeManis A, Calif
- Farber C-M, 1981, Clin Exp Immunol, 44, 426
- 10.1017/S0140525X00001023 · DOI
- 10.1111/j.1471-0528.1974.tb00380.x · DOI
- 10.1111/j.1600-0897.1990.tb01024.x · DOI
- Mullen U, 1988, Exp Clin Immunogenet, 5, 176
- 10.1007/BF00284142 · DOI
- 10.1007/BF00344300 · DOI
- 10.1001/archpsyc.1991.01810360053008 · DOI · Paper page
- 10.1126/science.8332896 · DOI · Paper page
- 10.1001/archpsyc.1986.01800080094012 · DOI
- 10.1007/BF01541765 · DOI
Cited by
The Difference Between “Significant” and “Not Significant” is not Itself Statistically Significant
Gelman, A., & Stern, H. (2006) · The American Statistician · doi:10.1198/000313006x152649 · Cited by 1,407
Biological versus nonbiological older brothers and men’s sexual orientation
Bogaert, A. F. (2006) · Proceedings of the National Academy of Sciences · doi:10.1073/pnas.0511152103 · Cited by 238
Preference for Human Body Odors Is Influenced by Gender and Sexual Orientation
Martins, Y., Preti, G., Crabtree, C. R., Runyan, T., Vainius, A. A., & Wysocki, C. J. (2005) · Psychological Science · doi:10.1111/j.1467-9280.2005.01598.x · Cited by 111
Metadata
- Venue
- American Journal of Psychiatry
- Published
- 1996-01-01
- Volume
- 153
- Issue
- 1
- Pages
- 27-31
- ISSN
- 0002-953X (ISSN-L)
- 1535-7228
- OpenAlex
- W1541652456
- Cited by
- 284
- References
- 0
- FWCI
- 3.09
- 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
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.
