Breast Cancer recurrence in Chinese women

The authors (1) investigated breast cancer recurrence rate in 2213 Chinese women with unilateral breast cancer. Patients were treated in the Cancer hospital of Fudan University, Shanghai, China. Survival curves were performed with Kaplan–Meier method and annual recurrence hazard was estimated by hazard function.Three figures are reproduced here from the original paper.

Compare these figures with the bi-modal hazard observed in our study of SEER patients.


Breast cancer hazard rates

Data source: Surveillance, Epidemiology, and End Results (SEER) Program (www.seer.cancer.gov) SEER*Stat Database: Incidence - SEER 9 Regs Public-Use, Nov 2004 Sub (1973-2002), National Cancer Institute, DCCPS, Surveillance Research Program, Cancer Statistics Branch, released April 2005, based on the November 2004 submission.




Fig. 2 Annual recurrence hazard rate for 2,213 breast cancer
patients. The hazard rates described demonstrate hazard of recurrence for each 1-year interval



Fig. 3 Annual recurrence hazard rate for 2,213 breast cancer patients by tumor size. The hazard rates described demonstrate hazard of recurrence for each 1-year interval


Fig. 4 Annual recurrence hazard rate for 2,213 breast cancer patients
by axillary lymph node status. The hazard rates described demonstrate hazard of recurrence for each 1-year interval


References

1. Wenjin Yin Æ Genhong Di Æ Liheng Zhou Æ Jinsong Lu Æ Guangyu Liu Æ Jiong Wu Æ Kunwei Shen Æ Qixia Han Æ
Zhenzhou Shen Æ Zhimin ShaoTime-varying pattern of recurrence risk for Chinese breast cancer patients
Breast Cancer Res Treat (2009) 114:527–535