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- 题目:
- Improved survival rate for women with interval breast cancer - results from the breast cancer screening programme in Malmö, Sweden 1976-1999.
- 作者:
- Zackrisson(Sophia),Janzon(Lars),Manjer(Jonas),Andersson(Ingvar)
- 状态:
- 发布时间2007-10-10 , 更新时间 2007-10-10
- 期刊:
- J Med Screen
- 摘要:
- Breast cancers detected between screening examinations can influence the sensitivity of a screening programme. Studies of the prognosis of these so-called interval breast cancers show diverging results. We investigated the course of interval breast cancer over time in the Malmö Mammographic Screening Trial (MMST) 1976-86 and the Malmö Mammographic Service Screening Programme (MMSSP) 1990-99.,Stage distribution and survival of interval cancers in MMSSP were compared with screen-detected and non-attender cancer cases in MMSSP, with interval cancers in MMST and with breast cancer cases in a non-screened population five years before the start of MMSSP (pre-screening cancer cases).,In MMSSP 1990-99, the interval cancers did not differ in stage distribution or survival compared with cancer cases in non-attenders, while screen-detected cancer cases had more favourable stage distribution and rate of survival than had the interval cancer cases. The MMST interval cancer cases, 1976-1986, had more favourable stage distribution but higher overall case fatality rate, relative risks (RR) 1.78 (1.00-3.20), and breast cancer case fatality rate, RR 2.05 (1.05-4.00), compared with the more recent MMSSP interval cancer cases. No significant difference in five-year survival was seen in the MMSSP interval cancer cases compared with pre-screening cancer cases not exposed to screening.,In this urban population invited to mammographic screening, the survival rate for women with interval cancer has improved over a period of 20 years. Further studies are needed to assess what factors might explain changes in the course of interval breast cancer.
- 语言:
- eng
- DOI:
- 10.1258/096914107782066239
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