Background Estimates of radiation-induced breast cancer risk from mammography screening have not previously considered dose exposure variation or diagnostic work-up after abnormal screening. Objective To estimate distributions of radiation-induced breast cancer incidence and mortality from digital mammography screening, considering exposure from screening and diagnostic mammography and dose variation across women. Design Two simulation-modeling approaches using common data on screening mammography from the Breast Cancer Surveillance Consortium and radiation dose from mammography from the Digital Mammographic Imaging Screening Trial. Setting U.S. population. Patients Women aged 40–74 years. Interventions Annual or biennial digital mammography screening from age 40, 45, or 50 until 74. Measurements Lifetime breast cancer deaths averted (benefits) and radiation-induced breast cancer incidence and mortality per 100,000 women screened (harms). Results On average, annual screening of 100,000 women aged 40 to 74 years was projected to induce 125 breast cancers (95% confidence interval [CI]=88–178) leading to 16 deaths (95% CI=11–23) relative to 968 breast cancer deaths averted by early detection from screening. Women exposed at the 95th percentile were projected to develop 246 radiation-induced breast cancers leading to 32 deaths per 100,000 women. Women with large breasts requiring extra views for complete breast examination (8% of population) were projected to have higher radiation-induced breast cancer incidence and mortality (266 cancers, 35 deaths per 100,000 women), compared to women with small or average breasts (113 cancers, 15 deaths per 100,000 women). Biennial screening starting at age 50 reduced risk of radiation-induced cancers 5-fold. Limitations We were unable to estimate years of life lost from radiation-induced breast cancer. Conclusions Radiation-induced breast cancer incidence and mortality from digital mammography screening are impacted by dose variability from screening and resultant diagnostic work-up, initiation age, and screening frequency. Women with large breasts may be at higher risk of radiation-induced breast cancer; however, the benefits of screening outweigh these risks.
Stigma-related concerns are most common among immigrant women and may partly account for underutilization of mental health care services by disadvantaged women from ethnic minority groups.
Mental health care preferences are examined among 1,893 low-income immigrant and U.S.-born women with an acknowledged emotional problem (mean age = 29.1, SD = 89.6). Ethnicity, depression, somatization, and stigma are examined as they relate to mental health care preferences (medication, individual and group counseling, faith, family/friends). Seventy-eight percent of participants counseling would be helpful; 55%; group counseling; and 32% medication. Faith was cited by 81%; family and friends were endorsed by 65%. Minorities had lower odds than Whites of endorsing medication (Black immigrants: OR = 0.27, p < 0.001, U.S.-born Blacks: OR = 0.30, p < 0.001, immigrant Latinas: OR = 0.50, p < 0.01). Most minorities also had higher odds of endorsing faith compared to Whites (Black immigrants: OR = 3.62, p < 0.001; U.S.-born Blacks, OR = 3.85, p < 0.001; immigrant Latinas: OR = 9.76, p < 0.001). Being depressed was positively associated with endorsing medication (OR = 1.93, p < 0.001), individual counseling (OR = 2.66, p < 0.001), and group counseling (OR = 1.35, p < 0.01). Somatization was positively associated with endorsing medication (OR = 1.29, p < 0.05) and faith (OR = 1.37, p < 0.05). Stigma-concerns reduced the odds of endorsing group counseling (OR = 0.58, p < 0.001). Finally, being in mental health treatment was related to increased odds of endorsing medication (OR = 3.88, p < 0.001) and individual counseling (OR = 2.29, p = 0.001).
A combined cohort of 8,884 North American, 2,893 British and 1,574 Nordic subjects with Wilms tumor (WT) diagnosed before 15 years of age during 1960-2004 was established to determine the risk of secondary malignant neoplasms (SMN). After 169,641 person-years (PY) of observation through 2005, 174 solid tumors (exclusive of basal cell carcinomas) and 28 leukemias were ascertained in 195 subjects. Median survival time after a solid SMN diagnosis 5 years or more from WT was 11 years; it was 10 months for all leukemia. Age-specific incidence of secondary solid tumors increased from approximately 1 case per 1,000 PY at age 15 to 5 cases per 1,000 PY at age 40. The cumulative incidence of solid tumors at age 40 for subjects who survived free of SMNs to age 15 was 6.7%. Leukemia risk, by contrast, was highest during the first 5 years after WT diagnosis. Standardized incidence ratios (SIRs) for solid tumors and leukemias were 5.1 and 5.0, respectively. Results for solid tumors for the 3 geographic areas were remarkably consistent; statistical tests for differences in incidence rates and SIRs were all negative. Age-specific incidence rates and SIRs for solid tumors were lower for patients whose WT was diagnosed after 1980, although the trends with decade of diagnosis were not statistically significant. Incidence rates and SIRs for leukemia were highest among those diagnosed after 1990 (p-trend 5 0.003). These trends may reflect the decreasing use of radiation therapy and increasing intensity of chemotherapy in modern protocols for treatment of WT.Wilms tumor (WT) is an embryonal tumor of the kidney that affects approximately 1 child in every 10,000 before the age of 15 years in Europe and North America.1 During the 20th century, with the development first of curative radiation therapy (RT) techniques and then of effective chemotherapy regimens, WT case fatality rates declined from 90 to 10%. 2The increasing numbers of survivors of WT and other childhood cancers, however, have substantial risk of developing adverse medical conditions related to treatment of their disease.3 One of the most serious late consequences of treatment
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