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BACKGROUND Breast cancer incidence is currently low in China. However, the distribution of reproductive and lifestyle risk factors for breast cancer among Chinese women is changing rapidly. We quantified the expected effect of changes in breast cancer risk factors on future rates of breast cancer in China. METHODS We first validated and calibrated the(More)
BACKGROUND Glioma is a rapidly progressive disease, and little is known about its etiology. Atopic diseases are on the rise in western populations, with increasing interest on their long-term health consequences. An inverse association between atopy and the risk of glioma has been observed. We carried out a meta-analysis of studies examining the association(More)
BACKGROUND Although the association between adult diet and breast cancer has been investigated extensively, large prospective studies have generally not shown a direct link between intakes of carbohydrate, fat, fiber, and other nutrients and risk of breast cancer. Adolescence may be a period of increased susceptibility to risk factors that predispose to(More)
PURPOSE In light of inverse relationships reported in observational studies of vitamin D intake and serum 25-hydroxyvitamin D levels with risk of nonmelanoma skin cancer (NMSC) and melanoma, we evaluated the effects of vitamin D combined with calcium supplementation on skin cancer in a randomized placebo-controlled trial. METHODS Postmenopausal women age(More)
IMPORTANCE Indoor tanning is a known carcinogen, but the scope of exposure to this hazard is not known. OBJECTIVE To summarize the international prevalence of exposure to indoor tanning. DATA SOURCES Studies were identified through systematic searches of PubMed (1966 to present), Scopus (1823 to present), and Web of Science (1898 to present) databases,(More)
It is controversial whether worldwide increases in melanoma incidence represent a true epidemic. Dramatic increases in incidence in the setting of relatively stable mortality trends have also been attributed to expanded skin screening and detection of biologically indolent tumors with low metastatic potential. To better understand how melanoma incidence(More)
OBJECTIVES/HYPOTHESIS To describe the accuracy of non-echo-planar diffusion-weighted magnetic resonance imaging (DW MRI) in identifying middle ear cholesteatoma. STUDY DESIGN A meta-analysis of the published literature. METHODS A systematic review of the literature was performed to identify studies in which patients suspected of having middle ear(More)
Clarification of the role of diet in breast cancer pathogenesis is important in order to identify modifiable risk factors on which to focus prevention efforts. Excess weight and weight gain in adult life are related to higher risk of postmenopausal breast cancer, and weight loss after menopause is associated with substantially reduced risk. Even moderate(More)
BACKGROUND An incision less than 3 cm in length in the neck is the main feature that discriminates the minimally invasive thyroidectomy and parathyroidectomy from traditional procedures. Smaller neck scars are assumed to yield better patient satisfaction, although no established data support this. In this analysis, we evaluated the satisfaction of patients(More)
Sun protection is recommended for skin cancer prevention, yet little is known about the role of sun protection on vitamin D levels. Our aim was to investigate the relationship between different types of sun protective behaviors and serum 25(OH)D levels in the general US population. Cross-sectional, nationally representative survey of 5,920 adults aged 18–60(More)