Factor analysis of the Pittsburgh Sleep Quality Index in breast cancer survivors.

CONTEXT: Sleep is a significant problem in breast cancer survivors (BCS) and measured frequently using the Pittsburgh Sleep Quality Index (PSQI). Thus, it is important to evaluate its factor structure. The two-process model of sleep regulation was the theoretical framework for this study. OBJECTIVES: To perform a confirmatory factor analysis of the PSQI in BCS and compare results between African-American and Caucasian BCS. METHODS: This was a secondary analysis of cross-sectional data using local and regional health care facilities and Eastern Cooperative Oncology Group referrals. The study included 1174 nondepressed BCS (90% Caucasian), with a mean age of 57 years and median PSQI global scores at the cutoff for poor sleep (median=6.00, interquartile range=4.00-9.00). Measurements included self-reported demographics, medical history, depression, and sleep. RESULTS: Acceptable fit was not reached for the traditional one-factor model that would be consistent with current PSQI scoring or for alternative models in the published literature from other populations. A new two-factor model (i.e., sleep efficiency and perceived sleep quality) best fit the data but nested-model comparisons by race showed different relationships by race for 1) sleep quality-sleep latency and 2) sleep efficiency-sleep quality. CONCLUSION: Results were inconsistent with current PSQI scoring that assumes a single global factor and with previously published literature. Although a new two-factor model best fit the data, further quantitative and qualitative analyses are warranted to validate our results in other populations before revising PSQI scoring recommendations. Additional recommendations are described for research.

Computer-delivered tailored intervention improves colon cancer screening knowledge and health beliefs of African-Americans.

We conducted a randomized controlled trial among African-American patients attending a primary-care provider visit to compare efficacy of a computer-delivered tailored intervention to increase colorectal cancer (CRC) screening (n = 273) with non-tailored print material-an American Cancer Society brochure on CRC screening (n = 283). Health Belief Model constructs were used to develop tailored messages and examined as outcomes. Analysis of covariance models were used to compare changes between CRC knowledge and health belief scores at baseline and 1 week post-intervention. At 1 week, patients who received the computer-delivered tailored intervention had greater changes in CRC knowledge scores (P < 0.001), perceived CRC risk scores (P = 0.005), FOBT barriers scores (P = 0.034) and colonoscopy benefit scores (P < 0.001). Findings show that computer-delivered tailored interventions are an effective adjunct to the clinical encounter that can improve knowledge and health beliefs about CRC screening, necessary precursors to behavior change.

Health-related quality of life of african american breast cancer survivors compared with healthy African American women.

BACKGROUND: The diagnosis and treatment of breast cancer can result in an array of late cancer-specific side effects and changes in general well-being. Research has focused on white samples, limiting our understanding of the unique health-related quality of life outcomes of African American breast cancer survivors (BCSs). Even when African American BCSs have been targeted, research is limited by small samples and failure to include comparisons of peers without a history of breast cancer. OBJECTIVE: The purpose of this study was to compare health-related quality of life of African American female BCSs with that of African American women with no history of breast cancer (control group). METHODS: A total of 140 women (62 BCSs and 78 controls), 18 years or older and 2 to 10 years postdiagnosis, were recruited from a breast cancer clinic and cancer support groups. Participants provided informed consent and completed a 1-time survey based on the proximal-distal health-related quality of life model of Brenner et al (1995). RESULTS: After adjusting for age, education, income, and body mass index, results show that African American BCSs experienced more fatigue (P = .001), worse hot flashes (P < .001), and worse sleep quality (P < .001) but more social support from their partner (P = .028) and more positive change (P = .001) compared with African American female controls. CONCLUSIONS: Our results suggest that African American female BCSs may experience unique health-related outcomes that transcend age, education, socioeconomic status, and body mass index. IMPLICATIONS FOR PRACTICE: Findings suggest the importance of understanding the survivorship experience for particular racial and ethnic subgroups to proactively assess difficulties and plan interventions.

Effects of personal characteristics on African-American women's beliefs about breast cancer.

PURPOSE: This study measured the effect of demographic and clinical characteristics on health and cultural beliefs related to mammography. DESIGN: Cross-sectional study. SETTING: Interviews were conducted during 2003 and 2004 in a Midwestern urban area. SUBJECTS: Subjects were 344 low-income African-American women 40 years and older who had not had mammography within the previous 18 months. MEASURES: The instrument measured personal characteristics, belief and knowledge scales, and participants' mammography experience and plans. ANALYSIS: Multiple regression analysis assessed the effect of specific demographic and clinical characteristics on each of the scale values and on subjects' stages of readiness to change. RESULTS: The subjects' levels of education significantly affected six of the 12 belief and knowledge scales. Higher-educated women felt less susceptible to breast cancer, had higher self-efficacy, had less fear, had lower fatalism scores, were less likely to be present-time oriented, and were more knowledgeable about breast cancer. Older women felt they were less susceptible to breast cancer, had higher fatalism scores, were more present-time oriented, and were less knowledgeable about breast cancer. CONCLUSIONS: The findings suggest that mammography promotion programs for African-Americans should consider the education levels and ages of the target women to be most effective.

Randomized trial of a lay health advisor and computer intervention to increase mammography screening in African American women.

BACKGROUND: Low-income African American women face numerous barriers to mammography screening. We tested the efficacy of a combined interactive computer program and lay health advisor intervention to increase mammography screening. METHODS: In this randomized, single blind study, participants were 181 African American female health center patients of ages 41 to 75 years, at < or =250% of poverty level, with no breast cancer history, and with no screening mammogram in the past 15 months. They were assigned to either (a) a low-dose comparison group consisting of a culturally appropriate mammography screening pamphlet or (b) interactive, tailored computer instruction at baseline and four monthly lay health advisor counseling sessions. Self-reported screening data were collected at baseline and 6 months and verified by medical record. RESULTS: For intent-to-treat analysis of primary outcome (medical record-verified mammography screening, available on all but two participants), the intervention group had increased screening to 51% (45 of 89) compared with 18% (16 of 90) for the comparison group at 6 months. When adjusted for employment status, disability, first-degree relatives with breast cancer, health insurance, and previous breast biopsies, the intervention group was three times more likely (adjusted relative risk, 2.7; 95% confidence interval, 1.8-3.7; P < 0.0001) to get screened than the low-dose comparison group. Similar results were found for self-reported mammography stage of screening adoption. CONCLUSIONS: The combined intervention was efficacious in improving mammography screening in low-income African American women, with an unadjusted effect size (relative risk, 2.84) significantly higher (P < 0.05) than that in previous studies of each intervention alone.

Prevalence, severity, and correlates of sleep-wake disturbances in long-term breast cancer survivors.

CONTEXT: Current evidence shows that sleep-wake disturbances are a persistent problem linked to poor quality of life in women surviving breast cancer. Information regarding correlates of sleep-wake disturbances in long-term survivors is sparse. OBJECTIVES: The objective of this study was to refine knowledge regarding prevalence, severity, and correlates of sleep-wake disturbances in long-term breast cancer survivors (BCS) compared with age-matched women without breast cancer (WWC). METHODS: The cross-sectional convenience sample included 246 BCS and 246 WWC who completed a quality-of-life study and were matched within +/-5 years of age. RESULTS: BCS were a mean of 5.6 years beyond completion of cancer treatment (range = 5.6-10.0 years). Based on Pittsburgh Sleep Quality Index (PSQI) scores, BCS had significantly more prevalent sleep-wake disturbances (65%) compared with WWC (55%) (P < 0.05). BCS also had significantly higher PSQI global scores indicating poorer sleep quality compared with WWC (P < 0.05). Significant correlates of prevalence of poor sleep for BCS included hot flashes, poor physical functioning, depressive symptoms, and distress, and for WWC, these included hot flashes, poor physical functioning, and depressive symptoms. Significant correlates (P < 0.05) of severity of poor sleep for BCS included presence of noncancer comorbidities, hot flashes, depressive symptoms, and residual effects of cancer treatment. For WWC, these included hot flashes, poor physical functioning, depressive symptoms, and impact of a life event. CONCLUSION: Knowledge of prevalence, severity, and correlates of sleep-wake disturbances provides useful information to health care providers during clinical evaluations for treatment of sleep-wake disturbances in BCS.

Development of Wagle Health-Specific Religiousness scale.

African American women have a lower rate of regular mammography screening, resulting in higher incidence of advanced-stage breast cancer at diagnosis and a lower 5-year survival rate as compared with white women. Researchers have demonstrated that several health beliefs relate to mammography screening in African American women, but little attention has been paid to the importance of religiousness. Although some authors have attempted to determine a link between religiousness and health, we lack a valid and reliable instrument to measure religiousness that can be found in the context of health behaviors. The purpose of this article is to describe the development and psychometric testing of the Wagle Health-Specific Religiousness (WHSR) scale, an instrument used to measure religious beliefs and the influence of those beliefs on mammography screening for African American women. A sample of 344 low-income African American women who were nonadherent to mammography at accrual participating in a randomized trial completed the WHSR. Data from this trial were used to determine the validity and reliability of the WHSR. The 19-item WHSR scale had a Cronbach alpha of. 94. Construct validity was supported via factor analysis and analysis of theoretical relationships. Although further testing is warranted, this analysis indicates that the concept of religiousness is an important component of mammography behavior in African American women.

Cognitive Dysfunction and Its Relationship to Quality of Life in Breast Cancer Survivors.

Purpose/Objectives: To examine relationships between capacity to direct attention and the quality-of-life (QOL) domains of psychological and physical well-being in breast cancer survivors.Design: Descriptive, correlational.Setting: National Cancer Institute-designated oncology and county hospital outpatient clinics in the midwestern region of the United States.Sample: 134 breast cancer survivors aged 32-79 years (X = 56.3, SD = 9.4) with a mean of 6.4 years since diagnosis (SD = 2.8, range = 1-10).Methods: Secondary analysis of questionnaire data measuring cognitive dysfunction and two QOL domains. Descriptive statistics, Pearson or Spearman correlations, and multiple regression analysis were used.Main Research Variables: Capacity to direct attention, as well as psychological and physical well-being.Findings: Deficits in capacity to direct attention were related to poorer QOL, including more depressive symptoms, lower well-being, poorer physical functioning, and greater fatigue.Conclusions: Capacity to direct attention was related to psychological and physical well-being in breast cancer survivors.Implications for Nursing: Nurses are in a prime position to assess breast cancer survivors' capacity to direct attention and resulting relationships with QOL. Findings suggest that nursing interventions that address survivors' capacity to direct attention may have a broad impact on QOL.

Cultural constructs, stage of change, and adherence to mammography among low-income African American women.

The purpose of this study was to explore the predictive relationships between cultural belief and stage of change and mammography adherence in low-income Midwestern African American urban women (N=321). Secondary analysis of questionnaire data measuring religiosity, racial pride, family collectivism, future and present time orientation, and stage of mammography screening adoption was conducted. Religiosity (OR=1.12; p=.002) and future time orientation (OR=1.12; p=.05) predicted mammography adherence with a positive association, while present time orientation (OR=0.91; p=.05) was significantly negatively associated. Religiosity (OR=1.11; p=.002) and future time orientation (OR=1.12; p=.05) were positive predictions of stage progression, whereas present time orientation (OR=0.90; p=.03) had a significant negative relationship. By identifying cultural variables that are related to mammography adherence in African American women, mammography-promoting interventions can be more effectively tailored.

Quality of life of African American breast cancer survivors: how much do we know?

Women affected by breast cancer experience an array of quality-of-life issues that affect their daily living in both short-term and long-term survivorship. Because African American women experience disparities in breast cancer survival, their quality-of-life concerns may paint a different picture from those of other racial and ethnic groups. To gain a better understanding of quality of life in African American women breast cancer survivors, we conducted a review, using an adaptation of Brenner's quality-of-life proximal-distal continuum, of studies that have investigated these women's experiences and associated variables. Twenty-six studies, qualitative and quantitative, were reviewed that identified both deficits and positive outcomes of breast cancer treatment and sequelae, including physical, emotional, social, and patient-provider problems as well as heightened spirituality and positive growth. Although overall global quality of life was favorable in both African American and white survivors, differences existed in the nature and extent of deficits between these 2 survivor groups. Nursing implications of this review point to the need for further rigorous research and wide dissemination of results. Recommendations for practice include tailoring assessments and interventions within the context of the lives of African American women breast cancer survivors.

Barriers to recruiting urban African American women into research studies in community settings.

This qualitative study identified barriers to African American women's participation in a community-based behavioral intervention trial to increase mammography screening. Four themes emerged from focus group discussions with community agency providers and research team members. These themes were (1) going to the gatekeepers; (2) knowing the culture; (3) location is everything; and (4) protocols, policies, and possibilities. A checklist of actions that nurse researchers could consider to increase African American women's participation in community trials is provided.

"I've been through something": poetic explorations of African American women's cancer survivorship.

This article describes common experiences of African American women breast cancer survivors through poetic analysis. Group-as-a-whole theory and empirical and interpretive phenomenology guided analysis of transcripts from three focus groups (n = 21) of African American breast cancer survivors. Familiarity with transcripts and themes led to awareness of poetic ways in which African American women described experiences. Black feminist literature and African American historical references contextualized survivors' experiences. Poetic interpretations of African American women's breast cancer experiences, from diagnosis to survivorship, were created from transcript dialogues. Verbatim words were used to construct the poems, as often as possible. Eleven poems describe the journey from diagnosis to survivorship as experienced by African American women. The poetry may raise levels of awareness of African American women's breast cancer survivorship experiences. Attention to subtleties that underpin culture within the context of health care environments may help health care providers to improve cultural competence.

Differences in health and cultural beliefs by stage of mammography screening adoption in African American women.

Behavioral studies show that women's stage of readiness to adopt mammography screening affects their screening rates and that beliefs about breast cancer and screening affect stages of screening. The purposes of this study were to determine, first, the relationship between particular health and cultural beliefs and stage of mammography screening adoption in urban African American women, and second, whether demographic and experiential characteristics differed by stage. Data were analyzed from 344 low-income African American women nonadherent to mammography screening who participated in a 21-month trial to increase screening. At baseline, these women were randomized into 1 of 3 groups: tailored interactive computer instruction, targeted video, or usual care. Participants were categorized by stage of mammography screening adoption at 6 months as precontemplators (not planning to have a mammogram), contemplators (planning to have a mammogram), or actors (had received a mammogram). Although demographic and experiential variables did not differentiate stages of screening adoption at 6 months postintervention, some health and cultural beliefs were significantly different among groups. Actors were more preventive-health-oriented than precontemplators and had fewer barriers to screening than did contemplators. Precontemplators had more barriers, less self-efficacy, and greater discomfort with the mammography screening environment than did contemplators or actors. These results will be useful, not to change cultural beliefs, but to guide the design of health education messages appropriate to an individual's culture and health belief system. Cancer 2007. (c) 2006 American Cancer Society.

Comparison of three interventions to increase mammography screening in low income African American women.

BACKGROUND: Low-income African American women are more likely to die of breast cancer than their Caucasian counterparts, and at least part of the difference in mortality results from differential screening adherence. The purpose of this study was to identify more efficacious methods of promoting routine mammography screening in underserved populations. METHODS: A prospective randomized intervention study of 344 low income African American women compared the impact of three interventions on mammography adherence and stage of readiness: (1) pamphlet only; (2) culturally appropriate video; and (3) interactive computer-assisted instruction program. RESULTS: The interactive computer intervention program produced the greatest level of adherence to mammography (40.0%) compared to the video group (24.6%) and the pamphlet group (32.1%). When subjects in the pamphlet and video groups were combined to form a non-interactive group, this group had a significantly lower adherence than the group who received the interactive computer intervention (27.0% versus 40.0%). There was also significantly more forward movement in mammography stage of readiness among participants in the computer group (52.0%) compared to those in the pamphlet group (46.4%) or the video group (31.3%). When combining the non-interactive technology (pamphlet and video) there was also more forward movement in mammography stage of readiness for those in the interactive intervention group (52.0% moved 1 or 2 stages) compared to those in the non-interactive group (36.2%). CONCLUSIONS: These data indicate that tailored approaches are more effective than targeted messages either in print or video format. Another finding of this study is that interactive interventions are more effective than non-interactive interventions in increasing adherence and moving African American women forward in their mammogram stage of readiness.

Psychosocial factors related to repeat mammography screening over 5 years in African American women.

The purpose of this study was to investigate health beliefs associated with repeat mammography screening in African American women 51 years or older over a 5-year period. Long-term repeat mammography screening is inconsistent in African American women; therefore, this study measured demographic, knowledge, and health belief predictors of repeat screening. The theoretical framework for this study was the health belief model. Baseline data from a larger randomized controlled trial were analyzed using descriptive statistics and logistic regression. The sample consisted of 602 African American women with no breast cancer history and at least 1 reported screening mammogram in the past 5 years. They were recruited from 3 primary care health settings. Having been screened 4 to 5 times in the past 5 years was associated with more knowledge about screening guidelines and fewer perceived barriers to screening. Results point to the importance of collaborating with African American communities to promote life-long mammography screening by increasing access to culturally appropriate information on screening guidelines and ameliorating barriers to screening within the context of the African American experience.

Sociocultural context of mammography screening use.

PURPOSE/OBJECTIVES: To examine variations in cultural and health beliefs about mammography screening among a socioeconomically diverse sample of African American and Caucasian women and to identify which set of beliefs predicted mammography screening adherence. DESIGN: Descriptive, retrospective, cross-sectional study. SETTING: Community-based organizations and public housing. SAMPLE: 111 African American women and 64 Caucasian women, aged 40 years or older, with no history of breast cancer. METHODS: Telephone and in-person structured interviews were conducted. Items used previously validated scales based on the Cultural Assessment Model for Health and the Health Belief Model. MAIN RESEARCH VARIABLES: Race or ethnicity, education, income, personal space, health temporal orientation, personal control, fatalism, susceptibility, benefits, barriers, self-efficacy, and mammography screening adherence. FINDINGS: African American women were more fatalistic about breast cancer and perceived fewer benefits to screening. Mammography screening-adherent women were more future oriented, believed that they had less control over finding health problems early, had fewer barriers to screening, and experienced more physical spatial discomfort during the screening procedure than nonadherent women. CONCLUSIONS: Several of the cultural beliefs were not significantly different by race or ethnicity. However, cultural and health beliefs were significant predictors of mammography screening. IMPLICATIONS FOR NURSING: Theoretically based cultural beliefs are important to consider for behavioral interventions to increase mammography screening in African American and Caucasian women.

Development of cultural belief scales for mammography screening.

PURPOSE/OBJECTIVES: To develop instruments to measure culturally related variables that may influence mammography screening behaviors in African American women. DESIGN: Instrumentation methodology. SETTING: Community organizations and public housing in the Indianapolis, IN, area. SAMPLE: 111 African American women with a mean age of 60.2 years and 64 Caucasian women with a mean age of 60 years. METHODS: After item development, scales were administered. Data were analyzed by factor analysis, item analysis via internal consistency reliability using Cronbach's alpha, and independent t tests and logistic regression analysis to test theoretical relationships. MAIN RESEARCH VARIABLES: Personal space preferences, health temporal orientation, and perceived personal control. FINDINGS: Space items were factored into interpersonal and physical scales. Temporal orientation items were loaded on one factor, creating a one-dimensional scale. Control items were factored into internal and external control scales. Cronbach's alpha coefficients for the scales ranged from 0.76-0.88. Interpersonal space preference, health temporal orientation, and perceived internal control scales each were predictive of mammography screening adherence. CONCLUSIONS: The three tested scales were reliable and valid. Scales, on average, did not differ between African American and Caucasian populations. IMPLICATIONS FOR NURSING: These scales may be useful in future investigations aimed at increasing mammography screening in African American and Caucasian women.