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PubMed1986

Gender-related variations and interaction of human neutrophil cyclooxygenase and oxidative burst metabolites.

Gender-related variations in human neutrophil membrane bound oxidative metabolism were evaluated employing the calcium ionophore A23187. These included the measurement of cyclooxygenase metabolites of arachidonate by specific RIA determination of thromboxane B2 (TxB2), prostaglandin E2 (PGE2), and 6-Keto PGF1 (6KPGF) as well as the initiation of the oxidative burst by the quantitative evaluation of superoxide (O-2) reduction of nitroblue tetrazolium (NBT). Neutrophils from women generated 30% less TxB2 and PGE2 than those obtained from men. In contrast, the neutrophils from women demonstrated relatively higher O-2 production with a cyclic pattern of both TxB2 and O-2 which correlated with their menstrual cycle. The elevated O-2 generation appeared to inversely correlate with TxB2 production. Further, introduction of an intracellular oxygen centered radical (OCR) scavenger, sodium benzoate, for the hydroxyl (.OH) radical was observed to affect cyclooxygenase metabolism in a dose-response manner. At higher concentrations of sodium benzoate, i.e., 10(-2) M, TxB2 production was inhibited; in contrast, 10(-3) M sodium benzoate enhanced neutrophil TxB2 generation which was particularly marked during times of increased oxidative burst activity, i.e. O-2 production. We conclude that the decreased production of cyclooxygenase metabolites observed in neutrophils from women in part derive from an increased oxidative burst activity. This suggests that a regulatory mechanism may exist between the neutrophil membrane bound oxidative system(s) involving oxygen centered radicals generated during both the oxidative burst and prostaglandin cyclic endoperoxide reduction. Further, these gender-related differences may be partially attributable to variations in circulating endogenous sex steroids.

6-Ketoprostaglandin F1 alpha↗
PubMed2003

Gender-related differences in myocardial inflammatory and contractile responses to major burn trauma.

Gender-related differences in immune responses to hemorrhage and sepsis have been described. However, most trauma studies continue to limit experimental models to males to avoid the variable responses associated with hormonal fluctuation in proestrus/estrus females. In the present study, male and female (either diestrus or proestrus/estrus) Sprague-Dawley rats (250-325 g) were given a third-degree scald burn over 40% total body surface area and fluid resuscitated (4 ml/kg per %burn of lactated Ringer solution); sham burn males and diestrus as well as sham burn proestrus/estrus female rats were included to provide controls. Twenty-four hours postburn, hearts were either perfused to examine mechanical function (Langendorff, n = 8 to 9 hearts/group) or to prepare cardiomyocytes (collagenase digestion, n = 4 to 5 hearts/group). Left ventricular developed pressure and the positive and negative first derivative of left ventricular pressure responses to increases in preload were significantly lower in burned males compared with responses measured in either burned proestrus/estrus or burned diestrus females; burn trauma increased cardiomyocyte secretion of tumor necrosis factor-alpha, interleukin-1beta, and nitric oxide to a lesser extent in proestrus/estrus females than levels secreted by either diestrus females or males. Similarly, myocytes from proestrus/estrus females accumulated significantly less sodium/calcium compared with values measured in males (P < 0.05). Our data confirm gender-related differences in myocardial function and myocardial inflammatory responses to burn injury.

Animals↗
PubMed1988

Discourses on the gender/sport relationship: from women in sport to gender relations.

In any developing field such as the one that began as "women in sport," key developments can be traced through the evolution of the language we use and the concepts we develop to express our new understandings. Thus the discourse has moved from considerations of sex differences and sex roles, to gender differences and gender roles, to the sex/gender system, and finally to patriarchy and gender relations, and we have progressed from seeing gender as a variable or as a distributive category to conceiving of it as a set of relations created through human agency and sustained or reproduced through cultural practices including, but not limited to, sport. At the same time, our understanding of sport has grown from seeing it as a static social institution, defined in terms of its separation from the real world, to the comprehension of sport as a social practice produced through human agency and reproduced through ideological work. Finally, our view of gender relations has moved from a focus on sex differences, conceived as relatively innate, to an outraged response to sexism, to a deeper understanding of just how complex and culturally situated are the relations of domination and subordination that characterize gender relations in partriachal cultures. As our consciousness has grown, our questions have changed from "why aren't more women involved in sport?" to "why are women excluded from sport?" to "what specific social practices accomplish the physical and ideological exclusion of women from sport?", "how and why have women managed to resist the practices that seek to incorporate them?", and "how do women work to transform sport to an activity that reflects their own needs as women?" The study of gender relations and sport has come a long way in a short time. In less than 20 years, the field has transformed itself from often angry, always well-intentioned, but generally atheoretical investigations of the patterns of women's involvement and the psychological factors that kept women from full participation, to a theoretically informed, critical analysis of the cultural forces that work to produce the ideological practices that influence the relations of sport and gender. Clearly, the direction for the future lies in the development and application of more critical analyses capable of capturing the complexity of the gender/sport relation.

Female↗
PubMed2005

Transfer function analysis of gender-related differences in cerebral autoregulation.

Effects of gender in cardiovascular regulation are widely investigated, however differences in cerebral autoregulation (CA) between genders remains less explored. In the present study, we used spectral analysis to analyze differences in cerebral autoregulation between 10 men and 10 age-matched women. Subjects rested in a supine position (20 min) and then were passively tilted to a 70-degree head up tilt position (30 min). During the first 10 min of supine they breathed only room air (Supine Control) while during the second 10 min of supine they breathed room air or room air plus 5% CO2 in a Pseudo Random Binary Sequence (PRBS) (Supine PRBS). During the first 10 min of tilt, subjects breathed room air or room air plus 5% CO2 switched in a PRBS (Tilt PRBS). For the remaining 20 min of tilt, they breathed only room air (Tilt Control). Blood pressure (BP) and cerebral blood flow velocity (CBFV) were non-invasively recorded using Finapres and Transcranial Doppler. Coherence and transfer function between mean BP and mean CBFV were estimated. During Supine Control, women had higher coherence (p < 0.05) and transfer function gain (p < 0.01) within 0.03-0.10 Hz and 0.22-0.31 Hz than men. During tilt, coherence within 0.05-0.26 Hz were higher in men than in women (P < 0.02). Although the reasons for these gender-related differences in cerebral autoregulation remain unclear, our results suggest that in investigating cerebral autoregulation, gender may need to be considered as a factor.

Adult↗
PubMed1994

Gender-related response to fluvastatin in patients with heterozygous familial hypercholesterolaemia.

Hydroxymethylglutaryl coenzyme A (HMG CoA) reductase inhibitors are potent cholesterol reducing agents that have been successfully used for the treatment of heterozygous familial hypercholesterolaemia (FH). A recent investigation revealed that several constitutional and genetic factors significantly determined the response of plasma lipids and lipoproteins to the HMG CoA reductase inhibitor fluvastatin. Gender has been identified through multivariate analysis as a major determinant of the plasma high density lipoprotein (HDL) cholesterol response. The current analysis was undertaken to determine possible gender-related fluvastatin dose-response differences. The analysis revealed that for HDL cholesterol, gender-related differences reach statistical significance only at the highest fluvastatin dose of 40 mg/day (females 22.9%, males 12.9%, p < 0.01). In parallel, the change in low density lipoprotein (LDL) cholesterol: HDL cholesterol ratio, an indicator of ischaemic heart disease risk, was also found to be affected by gender (females -38.4%, males -32.2%, p < 0.01). For LDL cholesterol, no consistent gender-related differences were found. In conclusion, the response of plasma lipid levels to fluvastatin in heterozygote FH patients is significantly affected by gender, with females achieving a more marked overall response, as indicated by higher HDL cholesterol levels and a lower LDL cholesterol: HDL cholesterol ratio.

Adult↗
PubMed2001

Children's gender-related inferences and judgments: a cross-cultural study.

This study compared the gender-related inferences and judgments of elementary school children (N = 542) of 2 different age groups (3rd graders and 5th graders) from 2 different cultures: Taiwan, a traditional collectivistic culture, and Israel, an individualistic and less traditional culture. The children were presented with 4 stories, 2 about a male target and 2 about a female target with either traditionally masculine or traditionally feminine interests, and were asked to make cognitive and emotional-motivational inferences and judgments about them. Culture played an important role in children's gender-related inferences and judgments. Specifically, Taiwanese children distinguished more than did Israeli children between male targets behaving stereotypically and counterstereotypically. The findings are analyzed within the framework of the differences between the 2 cultures.

Child↗
PubMed2003

Effects of estrogen on gender-related autonomic differences in humans.

Our previous studies demonstrated that premenopausal women have dominant vagal and subordinate sympathetic activity compared with age-matched men. This study was designed to investigate the role of estrogen in gender-related autonomic differences. We evaluated the heart rate variability of four healthy groups: age-matched postmenopausal women without hormone replacement therapy (PM), postmenopausal women on conjugated estrogen replacement therapy (PME), men, and non-age-matched premenopausal women (PreM). Frequency-domain analysis of short-term and stationary R-R intervals was performed to evaluate low-frequency power (LF; 0.04-0.15 Hz), high-frequency power (HF; 0.15-0.40 Hz), the ratio of LF to HF (LF/HF), and LF in normalized units (LF%). No gender-related autonomic differences existed between the PM and men groups, but they did exist between the PME and men group. Compared with the PreM group, the PM group had a lower HF and higher LF% and LF/HF. Compared with the PM group, the PME group had a higher HF but lower LF% and LF/HF. These results suggest that conjugated estrogen replacement therapy may facilitate vagal and attenuate sympathetic regulation of heart rate in postmenopausal women. In addition, estrogen may play an important role in gender-related autonomic differences.

Adult↗
PubMed2000

Gender-related differences in thrombogenic factors predicting recurrent cardiac events in patients after acute myocardial infarction. The THROMBO Investigators.

Thrombosis contributes to recurrent coronary events in patients after acute myocardial infarction (AMI), but prognostic significance of thrombogenic factors by gender is unknown. This study aimed to determine gender-related differences in the prognostic significance of thrombogenic factors for predicting cardiac events (nonfatal reinfarction or cardiac death) in postinfarction patients. Blood levels of the following factors were measured 2 months after AMI in 791 men and 254 women: fibrinogen, von Willebrand factor, factor VII and VIIa, plasminogen activator inhibitor, D-dimer, cholesterol, apolipoprotein A-1, apolipoprotein B, lipoprotein(a), triglycerides, and high-density lipoprotein cholesterol. After adjustment for clinical covariates, levels of apolipoprotein A, high-density lipoprotein cholesterol, fibrinogen, and factor VIIa were significantly higher in postinfarction women than men. During a mean 26-month follow-up, there were 67 cardiac events (8.5%) in men and 14 (5.5%) in women (p = 0.11). In the multivariate Cox model, elevated levels of factor VIIa were a significant predictor of cardiac events in women (p = 0.022) but not in men (p = 0.80), with significant gender-related effect (hazard ratio 2.80 vs 0.92, respectively; p <0.05). D-dimer had prognostic value in men (p = 0. 006) but not in women (p = 0.36), although the difference between hazard ratios for men and women was not significant (2.35 vs 1.58, respectively; p = 0.49). In conclusion, elevated levels of factor VIIa are associated with an increased risk of recurrent cardiac events in postinfarction women, but not in men. D-dimer is more predictive for cardiac events in postinfarction men than women. These observations indicate possible gender-related differences in the pathophysiologic mechanisms of recurrent cardiac events.

Apolipoproteins↗
PubMed1995

Gender-related differences in clinical management after exercise nuclear testing.

OBJECTIVES: This study sought to determine the rate of referral to cardiac catheterization in men and women early after nuclear testing as a function of the magnitude of myocardial ischemia by radionuclide perfusion imaging. BACKGROUND: Although many previous studies have suggested that gender-related differences are present in the clinical management of coronary artery disease, the presence of such a difference with respect to referral to catheterization after noninvasive testing is disputed. METHODS: We examined 3,211 consecutive patients (1,074 women, 2,137 men) who underwent exercise dual-isotope single-photon emission computed tomography and had follow-up evaluation performed at least 1 year after nuclear testing (mean [+/- SD] follow-up 19 +/- 5 months) for "hard" events (cardiac death and myocardial infarction) and referral to cardiac catheterization or revascularization within 60 days of nuclear testing. Multiple logistic regression analysis was performed to determine the best predictors of referral to catheterization as well as to examine whether gender itself added further information to this model. RESULTS: Although men were referred to catheterization more frequently than women (10.6% vs 7.1%, p < 0.001) early after exercise nuclear testing, there were no differences in the rate of referral to catheterization or revascularization after stratification by the amount of abnormally perfused myocardium detected by the nuclear scan. Both men and women with normal scan results were infrequently referred to subsequent catheterization. In the setting of severe ischemia, women were referred to catheterization more frequently than men. This higher rate appears to be clinically appropriate because women with severely abnormal scan results had a significantly higher event rate than men (17.5% vs. 6.3%, p < 0.0001). This greater risk in women than in men appeared to be underappreciated because the increased rate of hard events in women with severely abnormal scan results was out of proportion to the smaller increase in their rate of referral to cardiac catheterization. Although gender added information to the multivariate model most predictive of referral to catheterization models when nuclear variables were not included, when nuclear variables were considered, the addition of gender added no further significant information. This finding suggests that adjusting for differences in perfusion scan abnormalities by the use of nuclear testing eliminated the apparent gender-related referral bias. CONCLUSIONS: After controlling for differences in perfusion scan abnormalities, no gender-related referral bias to catheterization was present. In the setting of severe ischemia, women had a greater rate referral to catheterization than men. As a function of risk, both men and women were appropriately referred to catheterization at a low rate when the scan result was normal. However, because women with severe perfusion abnormalities had a greater rate of cardiac death and myocardial infarction then men, women in this high risk subgroup were underreferred to catheterization relative to men. This finding points to the need to better identify women at high cardiac risk.

Aged↗
PubMed2000

Understanding men's health and illness: a gender-relations approach to policy, research, and practice.

Men's health has emerged as an important public concern that may require new kinds of healthcare interventions and increased resources. Considerable uncertainty and confusion surround prevailing understandings of men's health, particularly those generated by media debate and public policy, and health research has often operated on oversimplified assumptions about men and masculinity. A more useful way of understanding men's health is to adopt a gender-relations approach. This means examining health concerns in the context of men's and women's interactions with each other, and their positions in the larger, multidimensional structure of gender relations. Such an approach raises the issue of differences among men, which is a key issue in recent research on masculinity and an important health issue. The gender-relations approach offers new ways of addressing practical issues of healthcare for men in college environments.

Gender Identity↗
PubMed1985

Gender-related differences in the morphology of the lacrimal gland.

Previous research has demonstrated that distinct, gender-related differences exist in the morphology of the rat lacrimal gland. The purpose of the present study was to determine whether this sexual dimorphism is unique to the rat, or extends as well to other species. Lacrimal glands were collected from adult male and female rats, mice, guinea pigs, rabbits and humans (biopsies). Tissues were processed for light microscopy and examined with a Zeiss Videoplan II image analysis system. For morphometric determinations, we measured the area of approximately 50 glandular acini per animal for a total count of greater than 244 acini per gender per species. Our results demonstrated that significant gender-related differences exist in lacrimal glands of rats, mice, guinea pigs, rabbits, and humans. In all species analyzed, acinar area in lacrimal glands of males was larger than that of females. These findings suggest that gender differences in lacrimal gland morphology may be a general phenomenon in a variety of species.

Animals↗
PubMed2006

Gender-related differences in target organ damage in untreated patients with essential hypertension.

We examined the gender-related differences in target organ damage in 220 untreated patients with essential hypertension (106 men and 114 women). As the indices of target organ damage, we examined the left ventricular mass index and the intima-media thickness in the carotid and femoral arteries obtained from echocardiography. In a multiple regression model, there was a significant positive correlation between the intima-media thickness and age in both groups. In men, there was a significant positive correlation between the left ventricular mass index and age, as well as the diastolic blood pressure, and body mass index. In women, there was a significant positive correlation between the left ventricular mass index and age, as well as plasma renin activity and smoking. In conclusion, there are gender-related differences in the contributing factors, which relate to left ventricular hypertrophy in patients with essential hypertension.

Aged↗
PubMed2003

Psychological outcomes and gender-related development in complete androgen insensitivity syndrome.

We evaluated psychological outcomes and gender development in 22 women with complete androgen insensitivity syndrome (CAIS). Participants were recruited through a medical database (n = 10) or through a patient support group (n = 12). Controls included 14 males and 33 females, of whom 22 were matched to women with CAIS for age, race, and sex-of-rearing. Outcome measures included quality of life (self-esteem and psychological general well-being), gender-related psychological characteristics (gender identity, sexual orientation, and gender role behavior in childhood and adulthood), marital status, personality traits that show sex differences, and hand preferences. Women recruited through the database versus the support group did not differ systematically, and there were no statistically significant differences between the 22 women with CAIS and the matched controls for any psychological outcome. These findings argue against the need for two X chromosomes or ovaries to determine feminine-typical psychological development in humans and reinforce the important role of the androgen receptor in influencing masculine-typical psychological development. They also suggest that psychological outcomes in women with CAIS are similar to those in other women. However, additional attention to more detailed aspects of psychological well-being in CAIS is needed.

Adaptation, Psychological↗
PubMed2001

Age- and gender-related differences in maximum shortening velocity of skeletal muscle fibers.

OBJECTIVE: To determine age- and gender-related differences in maximum unloaded shortening velocity (Vo) of Type I and IIA single muscle fibers. Muscle fibers must have a broad range of contractile velocities to generate the full range of power required for varied activities. DESIGN: Percutaneous needle biopsies of the vastus lateralis were obtained from 31 healthy subjects (n = 7 young men [YM], n = 7 young women [YW], n = 12 older men [OM], n = 12 older women [OW]). The slack test was used to determine Vo of individual fibers; 916 muscle fibers were chemically skinned. Fiber type was determined by myosin heavy chain isoform identification. RESULTS: Among men, Vo (fiber lengths/sec) was reduced with age in Type IIA fibers (OM vs. YM: 1.78 vs. 2.14; P < 0.05) but unchanged in Type I fibers. Among women, Vo was reduced with age in Type I fibers (OW vs. YW: 0.70 vs. 0.75; P < 0.05) but not IIA. OW had a lower Vo than did OM in both fiber types (Type I: OW = 0.70, OM = 0.77; Type IIA: OW = 1.51, OM = 1.78; P < 0.05). YW did not differ from YM. CONCLUSIONS: Both age and gender affect Vo. Age- and gender-related differences in Vo may partially explain the impairments in muscle function that occur with aging and the greater impairment in muscle function observed in OW compared with that observed in OM.

Adult↗
PubMed1989

Gender-related differences in cardiomyopathy.

As with other cardiovascular diseases, there are sufficient data to suggest significant gender-related differences in the prevalence and presentation of congestive heart failure and myocardial diseases. From animal studies, it is apparent that there are sex-related differences in intrinsic ventricular function and in the cardiovascular response to various stimuli, which are at least partly modulated through direct effects of sex hormones on the heart. Although similar data are not available in humans, it seems likely that similar gender-related differences in cardiac function exist and may in part account for the observed differences in myocardial diseases in men and women. Additionally, genetic factors may contribute to these differences, as X-linked disorders may present differently in males and females. An awareness of the impact of sex-related factors is clearly important in the evaluation of any patient presenting with heart failure or cardiomyopathy and may alter both diagnostic and therapeutic considerations, as well as broaden our basic knowledge and understanding of the pathogenetic mechanisms involved in myocardial dysfunction.

Cardiomyopathies↗
PubMed2002

Age- and gender-related differences in carbohydrate concentrations of alpha1-acid glycoprotein variants and the effects of glycoforms on their drug-binding capacities.

OBJECTIVE: Alpha(1)-acid glycoprotein (AAG) is a major binding protein for neutral and basic drugs because of its great drug affinity. AAG has three main genetic variants--F1, S, and A variants. Several attempts have been made to elucidate the differences in compositions of the carbohydrate moiety and structure-function relationships such as drug-binding differences. However, there have been few reports on age- and gender-related differences in compositions or concentrations of the carbohydrate moiety of AAG variants. The aim of this study was to clarify the age- and gender-related differences in carbohydrate concentrations and in drug-binding capacities of AAG glycoforms. METHODS: The sera used in this study were obtained from 32 healthy subjects (17 men and 15 women, aged 16-84 years). The AAG glycoforms were isolated by hydroxyapatite chromatography. The binding capacity of AAG to disopyramide (DP), which is a basic drug, was determined using the ultrafiltration method. The concentrations of N-acetylneuraminic acid (NeuAc) and monosaccharides in AAG were determined using high-pH anion-exchange chromatography with pulsed-amperometric detection. RESULTS: The mean plasma AAG concentration in the female subjects was significantly lower than that in the male subjects (0.67 +/- 0.12 mg/ml, mean +/- SD, in females, n = 15, versus 0.81 +/- 0.17 mg/ml in males, n = 17, P < 0.05), but no age-related differences were found (0.75 +/- 0.18 mg/ml in young subjects, n = 24, versus 0.77 +/- 0.12 mg/ml in older subjects, n = 8, n.s.). However, the degree of branching of the glycan chain in the female subjects was significantly lower than that in the male subjects (1.61 +/- 0.17 mol/mol, mean +/- SD, in females, n = 15, versus 1.75 +/- 0.23 mol/mol in males, n = 17, P < 0.05). There was a significant inverse relationship between the binding capacity of AAG to DP (Cb/AAG) and the degree of branching of the glycan chain. The binding capacity (Cb/AAG) decreased as the degree of branching in AAG glycans increased. The binding capacity (Cb/AAG) in the female subjects was significantly higher than that in the male subjects (2.79 +/- 0.59 mg/g AAG in females, mean +/- SD, n = 15, versus 2.37 +/- 0.29 mg/g AAG in males, n = 17, P < 0.05). CONCLUSION. The degree of branching of the glycan chain in AAG plays an important role in drug-binding capacity. Gender-related differences in drug-binding capacity (Cb/AAG) may be caused by differences in the ratios of the extent of branching of the glycan chain in AAG.

Adolescent↗
PubMed2004

Evidence from data searches and life-table analyses for gender-related differences in absolute risk of hip fracture after Colles' or spine fracture: Colles' fracture as an early and sensitive marker of skeletal fragility in white men.

UNLABELLED: Based on data searches and life-table analyses, we determined the long-term (remaining lifetime) and short-term (10- and 5-year) absolute risks of hip fracture after sustaining a Colles' or spine fracture and searched for potential gender-related differences. In aging men, Colles' fractures carry a higher absolute risk for hip fracture than spinal fractures in contrast to women. These findings support the concept that forearm fracture is an early and sensitive marker of male skeletal fragility. INTRODUCTION: Colles' fracture occurrence has been largely ignored in public health approaches to identify target populations at risk for hip fracture. The aim of this study was to estimate the long-term and short-term absolute risks of hip fracture after sustaining a Colles' or spine fracture and to search for potential gender-related differences in the relationship between fracture history and future fracture risk. MATERIALS AND METHODS: To determine the long-term (remaining lifetime) and short-term (10- and 5-year) absolute risks of hip fracture, we applied life-table methods using U.S. age- and sex-specific hip fracture incidence rates, U.S. age-specific mortality rates for white women and men, pooled hazard ratios for mortality after Colles' and spine fracture, and pooled relative risks for hip fracture after Colles' and spine fracture, estimated from cohort studies by standard meta-analytic methods. RESULTS: Our results indicate that the estimated remaining lifetime risks are dependent on age in both genders. In women, remaining lifetime risks increase until the age of 80 years, when they start to decline because of the competing probabilities of fracture and death. The same pattern is found in men until the age of 85 years, the increment in lifetime risk being even more pronounced. As expected, the risk of sustaining a hip fracture was found to be higher in postmenopausal women with a previous spine fracture compared with those with a history of Colles' fracture. In men, on the other hand, the prospective association between fracture history and subsequent hip fracture risk seemed to be strongest for Colles' fracture. At the age of 50, for example, the remaining lifetime risk was 13% in women with a previous Colles' fracture compared with 15% in the context of a previous spine fracture and 9% among women of the general population. In men at the age of 50 years, the corresponding risk estimates were 8%, 6%, and 3%, respectively. Similar trends were observed when calculating 5- and 10-year risks. CONCLUSIONS: In aging men, Colles' fractures carry a higher absolute risk for hip fracture than spinal fractures in contrast to women. These findings support the concept that forearm fracture is an early and sensitive marker of male skeletal fragility. The gender-related differences reported in this analysis should be taken into account when designing screening and treatment strategies for prevention of hip fracture in men.

Age Factors↗
PubMed1994

[A comparison of two models of gender-related schematic processing].

An experiment was conducted to compare two models of gender-related schematic processing: Bem's gender schema theory (1981) and self-schema theory by Markus, Crane, Bernstein, and Saladi (1982). While the former argues for a construct that is unidimensional, the latter proposes separate masculine and feminine schemata. Two hundred and thirty-six college students (111 males and 125 females) completed Bem Sex Role Inventory, and then estimated subjective percentages of males and females who had each trait of BSRI. The subjective percentages were used to compute sex-typing scores. After the questionnaires, the subjects attempted free recall of the inventory items, and clustering scores were computed from the results. Data analyses, including those of covariance structure, yielded the following results: 1) The fit of the gender schema model was better than the self-schema model. 2) A strong gender schema was related to a high-congruent self-concept score, a low sex-incongruent self-concept score, a high sex-congruent sex-typing score, a high sex-incongruent sex-typing score, and a high sex-congruent clustering score. As a whole, the results could be summarized to support the gender schema theory.

Adult↗