Joan R. Bloom

Bio: Joan R. Bloom is an academic researcher from University of California, Berkeley. The author has contributed to research in topics: Breast cancer & Capitation. The author has an hindex of 38, co-authored 110 publications receiving 7235 citations. Previous affiliations of Joan R. Bloom include Cancer Prevention Institute of California & University of California.

Cancer screening among African-American women: their use of tests and social support

Abstract: This study examined associations between social ties (as measured by the Social Network Index), instrumental and emotional support, and the use of three female cancer screening tests: mammography, cervical smear, and clinical breast examination. Data were taken from a household survey of 670 African-American women living in northern California in 1986. In multiple logistic regression models, Berkman's index was associated with increased use of mammography but not with the use of cervical smear or clinical breast examination. Instrumental and emotional support measures were not significant. These results suggest that social networks may have a role in early cancer detection.

Quality of life of younger breast cancer survivors: Persistence of problems and sense of well-being

Abstract: Objective Ten years after diagnosis, women diagnosed with breast cancer at age 50 or younger were assessed to determine whether quality of life (QOL) problems found at five years persisted. We predicted that QOL in the physical and social domains would be poorer, but improvements would be found in the psychological domain. Methods We re-interviewed 312 women, who had been interviewed at their five year anniversary and remained cancer free, on their QOL in three domains (physical, social, and psychological). Comparisons between their 5- and 10-year reports were performed using paired t-tests for numeric variables and McNemar's test for categorical variables. Multiple regression analysis was used to model change from 5 to 10 years in each QOL domain, given the level of QOL at 5 years. Results The women's mean age was 55, 60% were college graduates, 79% had a partner, and 27% were non-Euro-American. Ten years after diagnosis they reported poorer general health (p<0.0001) and physical well-being (p = 0.001), less sexual activity (p = 0.009), and more chronic conditions (p<0.0001) than at 5 years. Relationships were found between: (1) the number of chronic conditions at 5 years and decreased physical, social, and psychological well-being at 10 years; and (2) a smaller social network at 5 years and poorer social functioning at 10 years. Conclusions Certain aspects of both physical and social QOL worsened over time. The remaining question is whether these changes can be attributed to the late effects of treatment or to normal effects of aging. Copyright © 2011 John Wiley & Sons, Ltd.

Family History, Perceived Risk, and Prostate Cancer Screening among African American Men

Abstract: Background: Many African American men have two major risk factors for prostate cancer. By ethnicity alone, they have twice the risk of Euro-American men of developing prostate cancer. Having a family history (brother or father with prostate cancer) also doubles their risk. The major hypotheses tested in this study are that men with a family history perceive their risk to be higher, are more worried about getting prostate cancer, and are more likely to have used cancer screening tests than men without such a history. Methods: A sample of 208 African American men, ages 40 to 74 years, were recruited through relatives or friends whose prostate cancer diagnosis was reported to the California Cancer Registry during the years 1997 to 2001 and from churches and African American social groups. Following a screening interview to determine eligibility, 88 men with self-reported, first-degree family history of prostate cancer and 120 without such history were interviewed by telephone. Logistic regression was used to create models of perceived risk, prostate cancer worries, receipt of a digital rectal exam, and/or prostate-specific antigen (PSA) testing. Results: Men with a self-reported family history of prostate cancer did not perceive their risk as higher than men without a family history, nor did they report more cancer worries. They were more likely to report having a recent PSA test, but not a digital rectal exam. Having a higher than average perceived risk was associated with younger age, a college education, and lower mental well-being, and reporting more prostate cancer worries and being more likely to have had a recent PSA test. Conclusions: Although there continues to be controversy about PSA testing, these data suggest that African American men at above-average risk are inclined to be screened. (Cancer Epidemiol Biomarkers Prev 2006;15(11):2167–73)

Human aging: usual and successful

Abstract: Research in aging has emphasized average age-related losses and neglected the substantial heterogeneity of older persons. The effects of the aging process itself have been exaggerated, and the modifying effects of diet, exercise, personal habits, and psychosocial factors underestimated. Within the category of normal aging, a distinction can be made between usual aging, in which extrinsic factors heighten the effects of aging alone, and successful aging, in which extrinsic factors play a neutral or positive role. Research on the risks associated with usual aging and strategies to modify them should help elucidate how a transition from usual to successful aging can be facilitated.