Faculty Publications

Objective. The primary objective of the study was to prospectively assess quality of life (QOL) among women at increased risk of ovarian cancer who are undergoing risk-reducing salpingo-oophorectomy (RRSO) or serial screening. Methods. Women at increased risk of ovarian cancer who were undergoing RRSO were recruited into the study. At-risk women undergoing serial screening for early detection of ovarian cancer served as a comparison group. Participants completed measures of QOL, sexual functioning, body image, depressive symptoms, and a symptom checklist at baseline (prior to surgery for women obtaining RRSO), and then at 1-month, 6-months, and 12-months post baseline. Results. Women who underwent surgery reported poorer physical functioning, more physical role limitations, greater pain, less vitality, poorer social functioning, and greater discomfort and less satisfaction with sexual activities at 1-month assessment compared to baseline. In contrast, women undergoing screening experienced no significant decrements in QOL or sexual functioning at 1-month assessment. Most QOL deficits observed in the surgical group were no longer apparent by 6-month assessment. Women in the surgery group were more likely to report hot flashes and vaginal dryness, but over time, symptoms of vaginal discomfort decreased to a greater extent in women who had RRSO compared to women undergoing screening. No differences in body image or depressive symptoms were observed between the two groups at any time point. Conclusions. Short-term deficits in physical functioning and other specific domains of QOL were observed following RRSO, but most women recovered baseline functioning by 6- and 12-month assessments. Issues regarding the potential impact of surgery on short-term sexual functioning should be considered and weighed carefully, particularly among younger women. (C) 2008 Elsevier Inc. All rights reserved.

PURPOSE: This study examined the associations of free testosterone and family environment with delinquent and aggressive behaviors among adolescent boys and girls with elevated low-density lipoprotein (LDL)-cholesterol levels. METHODS: Participants were 164 boys and 180 girls 11-14 years of age. The female parent provided ratings of family cohesion and of child aggressive and delinquent behaviors. Tanner ratings of pubertal development were obtained during physical examination, and a blood sample was drawn for assessment of serum levels of free testosterone. RESULTS: Hierarchical regression analyses revealed significant two-way interactions of free testosterone and family cohesion on delinquent behaviors among adolescent boys and girls. Specifically, under conditions of low family cohesion, free testosterone was positively associated with delinquent behaviors among boys, whereas in families with high cohesion no association between free testosterone and delinquent behavior was observed. In contrast, free testosterone was negatively associated with delinquent behaviors among adolescent girls in low-cohesion families. For girls, family cohesion was negatively associated with aggressive behaviors; for boys, LDL-C was positively associated with aggressive behaviors. CONCLUSIONS: Child gender and family environment factors appear to modify the associations between free testosterone and delinquent behaviors in adolescent boys and girls.

Data regarding convenient, valid methods for measuring U.S. isoflavone intake are limited. We evaluated a soy food questionnaire (SFQ), the Willett food frequency questionnaire (FFQ), and overnight urine samples relative to excretion in 24-h urine samples. We also described intake among women in a high-risk program for breast or ovarian cancer. Between April 2002 and June 2003, 451 women aged 30 to 50 yr with a family history of breast or ovarian cancer completed the SFQ and FFQ. Of them, 27 provided four 24-h and overnight urine specimens. In these women, 24-h sample measures were correlated with SFQ estimates of daidzein (Spearman r = .48) and genistein (r = .54) intake, moderately correlated with the Willett FFQ (daidzein r = .38, genistein r = .33), and strongly correlated with overnight urine excretion (daidzein r = .84, genistein r = 0.93). Among all 451 SFQ respondents, mean (median) daidzein and genistein intakes were 2.8 (0.24) and 3.9 (0.30) mg/day. Primary sources of both were soymilk, soy nuts, and tofu. We conclude that targeted soy food questionnaires, comprehensive FFQs, and multiple overnight urines are all reasonable options for assessing isoflavone intake in epidemiologic studies.

Hepatitis B (HBV) infection plays a primary role in the development of liver cancer, contributing to nearly 80% of liver cancer cases. Vietnamese males have the highest incidence of liver cancer of any ethnic group, and HBV infection is a serious and prevalent health problem among Vietnamese immigrants. Guided by the Health Belief Model framework, the purpose of the present study was to assess levels of perceived risk, severity, barriers and benefits, and cues to action in HBV screening and vaccination in relation to actual screening and vaccination behavior in a sample of Vietnamese adults. The study consisted of 359 Vietnamese adults residing in Pennsylvania and New Jersey. The majority of participants were immigrants (98.1%) and had low socio-economic and educational status. Only 8.8% of participants reported being screened and 7.3% vaccinated for HBV. Participants who had been screened reported feeling at higher risk and perceived HBV infection to be more likely to lead to liver cancer and death than those who had not been screened. In addition, participants who had been screened reported fewer perceived barriers and more cues to action than unscreened participants. Compared to participants who had been vaccinated, unvaccinated participants were more likely to report feeling healthy and a lack of knowledge about where to obtain HBV testing as barriers. Multivariate logistic regression analyses indicated that perceived barriers were negatively associated with screening behavior as well as vaccination behavior. These results suggest that community-based, culturally appropriate interventions for Vietnamese Americans should directly address barriers to screening and vaccination in order to enhance screening and vaccination rates in this underserved population.

Objective: Despite the proven survival benefits associated with cervical cancer screening, use of the Pap test continues to be suboptimal in some population subgroups, such as among Korean-American women who face considerable barriers to screening. Therefore, we evaluated a multifaceted intervention that combined psychoeducational counseling with patient navigation to address both psychosocial and access barriers to screening. Method: Women (n = 102) were recruited from Korean community centers and assigned to the intervention or control condition. The intervention group received cervical cancer education and patient navigation delivered by bilingual Korean health educators. The control group received general health education, including information about cervical cancer and screening. Assessments were obtained at baseline and postintervention. Screening behavior was assessed at 6 months postintervention. Results: At baseline, 17% of participants reported having had a Pap test in the previous year. At 6 months postintervention, 83% of women in the intervention group had obtained screening compared with 22% in the control group, chi(2)(1) = 41.22, P < 0.001. Multivariate logistic regression analyses indicated that participation in the intervention was associated with screening (P < 0.001). Fewer psychosocial barriers (e.g., discomfort at having a stranger perform Pap) and greater self-efficacy were also associated with screening (P < 0.05). Conclusion: A combined modality intervention that delivers education with patient navigation training and assistance resulted in increased screening rates. Multifaceted approaches may be effective in reducing the psychosocial, access, and language barriers that contribute to cancer health disparities in underserved populations.

OBJECTIVE: Although perceived control and coping have been studied across various health conditions, these relationships have been less well studied in the context of coping with cancer risk over time. The present study was a longitudinal study of the effects of perceived control and problem-focused coping on changes in psychological adjustment and behavioural outcomes among women at increased risk for ovarian cancer. DESIGN AND METHODS: Eighty women enrolled in a familial cancer risk assessment programme participated in this study. Assessments of problem-focused coping, perceived control and distress were collected upon entry into the programme and again at 3-month follow-up. Behavioural adherence to screening during the 12-month period following programme entry was obtained from clinic records. RESULTS: Using hierarchical regression analysis, we observed a significant interaction between perceived control and problem-focused coping for psychological distress, beta=0.94, p<.05. Specifically, problem-focused coping was associated with increasing distress over time among women who perceived high control. A significant control by coping interaction was also observed for behavioural adherence to pelvic ultrasound and CA125 screening, such that women who perceived high control and utilized problem-focused coping were less likely to undergo screening. CONCLUSIONS: Under conditions of high perceived control, problem-focused coping was associated with increasing distress as well as poorer behavioural adherence. Thus, perceived control and problem-focused coping may not always yield positive psychological or behavioural health outcomes. These findings contribute to a greater understanding of how problem-focused coping and perceived control may influence the course of adjustment to cancer risk over time.

Objectives The objectives of the present study were to examine sociodemographic correlates of soy food consumption among women at increased risk of breast cancer, describe factors influencing soy food consumption or nonconsumption, and identify women's sources of information about soy foods. Design A cross-sectional, self-report survey was used to assess frequency of and factors influencing soy food consumption. Soy food intake was reported for the past year. Subjects/setting Participants were 452 women, with family histories of breast cancer who were enrolled in a cancer risk assessment program. Statistical analyses performed Comparisons between consumers and nonconsumers of soy foods were performed using multivariate logistic regression and chi(2) analyses. Results Thirty-two percent reported soy food consumption. Commonly consumed soy foods were vegetable burgers, tofu, and soymilk. Consumers of soy foods were more likely to have higher levels of education and report eating five or more daily servings of fruits and vegetables. The primary reason for consumption of soy foods was eating a healthful diet, whereas insufficient knowledge about soy food preparation was the primary reason stated for nonconsumption. Both consumers and nonconsumers reported obtaining information about soy foods from magazines, friends, and newspapers. Consumers also indicated using the Internet to seek information. Conclusions These findings contribute to our understanding of the level of soy intake among women at increased risk for breast cancer and highlight potential factors that may influence women's decisions regarding soy food consumption. Women, particularly in this vulnerable population, would benefit from clear messages regarding the health effects of soy.

The present study examined tobacco use, secondhand smoke exposure and related knowledge, attitudes and behaviors among Asian Americans in the Delaware Valley of Pennsylvania and New Jersey, and the relationship between acculturation and smoking, social influence patterns on smoking, and stages of change of smoking among Asian subgroups. Study sample was 1174 Chinese, Koreans, Vietnamese, Cambodians, and other Asians. Findings revealed mean age of initiation to be 18.3, 40% ever and 30% current users. Significant differences were reflected in smoking by gender, ethnicity, educational level, marital and employment status. While knowledge and attitudes about smoking and secondhand smoke were associated with these variables, ethnic pride and smoking status played significant roles. Fathers and brothers had greater social influence on young male smoking behavior; smoking friends had influence on both genders. Stages of change of smoking and acculturation impact on smoking varied with gender, age, and time living in the U.S. Findings provide comprehensive insights into tobacco use and related KAB among Asian Americans that reflect the need for developing culturally appropriate programs for this underserved population. © 2004 Elsevier Ltd. All rights reserved.

The past decade has seen a tremendous growth in the use of structural equation modeling (SEM) to address research questions in 2 subfields of behavioral science: cancer prevention and control (e.g., determinants of cancer screening adherence) and behavioral oncology (e.g., determinants of psychosocial adjustment among cancer patients or survivors). The application of SEM in these areas can have far-reaching implications for lowering cancer morbidity and mortality and for improving the psychological well-being and quality of life of those afflicted with, and recovering from, cancer. This article reviews the progress made in the application of SEM to cancer prevention and control and behavioral oncology research, highlighting 2 central uses: theory development and evaluation and scale construction. Directions for the future application of SEM to address research questions concerning cancer prevention and control and behavioral oncology are also discussed.