. This application requests continued support for the final five years of a randomized trial of BSE currently being conducted in 435 factories of the Shanghai Textile Industry Bureau. The purpose of the study is to determine whether the regular practice of BSE will reduce mortality from breast cancer. Over 267,000 current and retired female workers between the ages of 30 and 64 in 1989 were randomized by factory to an intervention or control group. Women in the intervention group received initial BSE instruction in 1989-91, reinforcement sessions in 1991-92 and 1993-95, and multiple interim reminders to practice BSE, and had their BSE supervised by a medical worker twice a year. All women are being actively followed for vital status and residence in Shanghai, and multiple active and passive methods are utilized to identify all incident and fatal breast cancers. High levels of compliance and competency in practicing BSE for the first five years of the trial have been documented, as has the capacity to track a high proportion of women in the study and identify virtually all breast cancer deaths. As anticipated from results of mammography trials, breast cancer mortality rates through year 4 of follow-up (1994) were similar in the two study arms, and follow-up for 10 years (through the year 2000), as originally anticipated, will be necessary, and is proposed in this renewal application. No further intervention activities are proposed. After 10 years of follow-up, over 2.6 million woman-years will have accrued, and this trial will have 80% power to detect a reduction in breast cancer mortality of 30%.
| Rosenblatt, Karin A; Gao, Dao L; Ray, Roberta M et al. (2009) Oral contraceptives and the risk of all cancers combined and site-specific cancers in Shanghai. Cancer Causes Control 20:27-34 |
| Rosenblatt, Karin A; Gao, Dao L; Ray, Roberta M et al. (2007) Monthly injectable contraceptives and the risk of all cancers combined and site-specific cancers in Shanghai. Contraception 76:40-4 |
| Rosenblatt, Karin A; Gao, Dao L; Ray, Roberta M et al. (2006) Induced abortions and the risk of all cancers combined and site-specific cancers in Shanghai. Cancer Causes Control 17:1275-80 |
| Gao, Dao-li; Thomas, David B; Ray, Roberta M et al. (2005) [Randomized trial of breast self-examination in 266,064 women in Shanghai] Zhonghua Zhong Liu Za Zhi 27:350-4 |
| Frankenfeld, Cara L; Lampe, Johanna W; Shannon, Jackilen et al. (2004) Frequency of soy food consumption and serum isoflavone concentrations among Chinese women in Shanghai. Public Health Nutr 7:765-72 |
| Rosenblatt, K A; Gao, D Li; Ray, R M et al. (2004) Contraceptive methods and induced abortions and their association with the risk of colon cancer in Shanghai, China. Eur J Cancer 40:590-3 |
| Suter, Nicola M; Ray, Roberta M; Hu, Yong Wei et al. (2004) BRCA1 and BRCA2 mutations in women from Shanghai China. Cancer Epidemiol Biomarkers Prev 13:181-9 |
| Coriaty Nelson, Zakia; Ray, Roberta M; Gao, Dao Li et al. (2002) Risk factors for fibroadenoma in a cohort of female textile workers in Shanghai, China. Am J Epidemiol 156:599-605 |
| Thomas, David B; Gao, Dao Li; Ray, Roberta M et al. (2002) Randomized trial of breast self-examination in Shanghai: final results. J Natl Cancer Inst 94:1445-57 |
| Ye, Z; Gao, D L; Qin, Q et al. (2002) Breast cancer in relation to induced abortions in a cohort of Chinese women. Br J Cancer 87:977-81 |
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