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Biomedical subjects

B Zuger

Publications and source records attributed to B Zuger.

At least 19 recordsLinked to original sources
PubMed1997

Sibling sex ratio of boys with gender identity disorder.

Sibling sex ratio (the ratio of brothers to sisters) was calculated for 444 boys with gender identity disorder (or with behaviors consistent with this diagnosis). The probands were ascertained from several researchers with expertise with this disorder and from the English language case report literature between 1938 and 1995. Among the probands with at least one sibling (N = 333), the results showed that boys with gender identity disorder had a significant excess of brothers to sisters, 131.1:100, when compared with the expected secondary sex ratio of 106:100. The excess of brothers replicated a previous study by Blanchard, Zucker, Bradley, and Hume (1995), in which the sibling sex ratio was 140.6:100. Further analyses showed that the probands were born later relative to their brothers than they were relative to their sisters. These findings are amenable to several psychosocial and biological explanations, which require further investigation.

Child↗
PubMed1989

Homosexuality in families of boys with early effeminate behavior: an epidemiological study.

In the course of a long-term study of 55 boys with early effeminate (cross-gender) behavior an effort was also made to ascertain the presence of sexual deviance in their parents, siblings, uncles, and aunts. For most of these groups of relatives, only one to three members in each group were found to be homosexual, equaling 4% male and 1% female for the total test population. Compared to similar studies, the results were not too different except in the case of the siblings of one study where the incidence was much higher. Some evidence is considered for the speculation of a nongenetic, congenital cause of homosexuality.

Adolescent↗
PubMed1984

Early effeminate behavior in boys. Outcome and significance for homosexuality.

This is a long term follow-up of 55 boys with early effeminate behavior. It was possible to determine the outcome in sexual orientation in 38 of the boys, which included homosexuality or variants of it in 35 (63.6 per cent) of the total of 55 and heterosexuality in three (5.5 per cent). In 10 boys the outcome was uncertain, and seven were lost to follow-up. An analysis of the uncertain cases suggests that the overall outcome in terms of homosexuality may prove to have been higher than 63.6 per cent. These results agree with those of previous prospective and retrospective studies, which are reviewed. From both types of such studies, the prospective ones starting out with instances of early effeminate behavior and the retrospective with cases of established homosexuality, the conclusion is ventured that all male homosexuality begins with early effeminate behavior. This has implications for future research on homosexuality.

Adolescent↗
PubMed1980

Homosexuality and parental guilt.

Homosexuality in the male is commonly held to be the product of a specific family constellation consisting of a dominant mother and an ineffectual or hostile father. Prospective studies however, on boys with early effeminate behaviour, the majority of whom subsequently become homosexual, show that their closeness to the mother and distance from the father spring from their own needs. The physician should feel free to relieve parents of guilt for this condition.

Adolescent↗