Navigation Links
High blood pressure linked to earlier death among African-American breast cancer patients
Date:3/4/2009

A study by researchers at the University of California, San Francisco has shown that hypertension, or high blood pressure, is a predictor of mortality among breast cancer patients, especially those who are African-American, and that hypertension accounts for approximately 30 percent of the survival disparity between African-American and white breast cancer patients.

According to the study's lead author, UCSF epidemiologist Dejana Braithwaite, PhD, of the UCSF Helen Diller Family Comprehensive Cancer Center, who also is an affiliate with the UCSF National Center of Excellence in Women's Health, this is the first study to link cancer mortality with hypertension, and specifically the first to show that hypertension is a predictor of mortality among African-American breast cancer patients.

"White women are more likely to get breast cancer, but African-American women are more likely to die from it," said Braithwaite. "We were trying to shed light on the factors that contribute to disparities in survival between the two groups."

The results are published in the March 2009 print edition of the International Journal of Cancer and appear online at http://www3.interscience.wiley.com/cgi-bin/fulltext/121431839/HTMLSTART.

The study included 416 African-American and 838 white women diagnosed with breast cancer between 1973 and 1986, following them through 1999. All of the women in the study were patients at Kaiser Permanente in Northern California. The patients were all residents of the San Francisco Bay Area and had a known stage of disease and course of cancer treatment.

Kaiser Permanente members are representative of the general population for many ethnic, demographic and socioeconomic categories, except for the very high and very low ends of the economic spectrum, according to the study. The researchers used data from patient records, which they considered more reliable than data self-reported by patients. Kaiser Permanente's division of research has long collaborated with UCSF on breast cancer research.

The study found that African-American breast cancer patients had a higher overall crude mortality, or death from all causes, than whites during the study period: 39.7 percent versus 33.3 percent respectively over a mean follow-up of nine years.

When age, race, tumor characteristics, and breast cancer treatment were controlled, hypertension accounted for 30 percent of the racial disparity in mortality, study findings showed.

"High blood pressure led to poorer outcomes for African-American patients than for their white counterparts," said Braithwaite. "Even if you statistically control for tumor characteristics and breast cancer treatmentschemotherapy, surgery, radiation, and hormone treatmentthe adverse effect of hypertension in African-American women means a greater likelihood of death."

Hypertension is not part of the Charlson Comorbidity Index, a widely-used generic tool that provides survival estimates for patients using a range of co-existing conditions or so-called comorbidities. If the results of this study are validated in more contemporary patient populations, the research suggests that hypertension should be included in this Index because of its high predictive value for outcomes, said Braithwaite.

According to study senior author Laura Esserman, MD, director, Carol Franc Buck Breast Care Center; co-leader, Breast Oncology Program, UCSF Helen Diller Family Comprehensive Cancer Center; and part of the UCSF National Center of Excellence in Women's Health, comorbidities have a huge influence on life expectancy and therefore influence treatment decisions for breast cancer. "We started out by trying to determine which comorbidities should be assessed for all patients routinely, and discovered that hypertension in African-Americans is associated with higher mortality from breast cancer," she said.

In addition, this information may provide clues to the cause of higher mortality in African American women with breast cancer, Esserman said.

"The message is that hypertension is a big deal. It affects African-Americans more than other ethnic groups, and it affects their survival overall. Better management of hypertension has potential to improve patient outcomes, particularly among African-American breast cancer patients," Braithwaite concluded.


'/>"/>

Contact: Kirsten Michener
kmichener@pubaff.ucsf.edu
415-476-2557
University of California - San Francisco
Source:Eurekalert

Related medicine news :

1. Specific antagonism lowers blood pressure
2. Restricting Blood Flow May Help Heart Bypass Patients
3. FDA Updates Prescription Guidelines for Blood Thinner
4. Doctors Often Miss High Blood Pressure in Kids
5. Back to School Means Return of School Blood Drives
6. Blood-flow detector software show promise in preventing brain damage
7. FDA Approves New Roche West Nile Virus Blood Screening Test
8. Australian-led international study shows blood pressure drugs cut death rate in type 2 diabetes
9. Laser blasts viruses in blood
10. Study Demonstrates Marteks Algal DHA Oil Improves Blood Triglyceride Lipid Levels
11. LifeMasters Provides Tips for Maintaining a Healthy Blood Cholesterol Level
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:9/23/2017)... ... September 23, 2017 , ... Silicon Valley Hair Institute, ... announce a new blog post focused on the ARTAS® hair transplant system and the ... turn to the latest, most technologically sophisticated methods of hair restoration. , “It can ...
(Date:9/22/2017)... , ... September 22, 2017 , ... Fenwick Agency of ... the communities they serve as part of the nationally recognized ‘Agents of Change’ movement. ... with nonprofit organizations and community leaders to seek out those who most need help. ...
(Date:9/22/2017)... ... , ... Happy Living’s mission - to improve the health and wellbeing of ... and delicious worlds of theatre and wines. , After watching Scott Barry perform ... his play into a book. The Greener The Grass ( https://www.happyliving.com/books/the-greener-the-grass ) was published ...
(Date:9/22/2017)... ... , ... "Success Files," a short- and long-form documentary style ... disease estimated to affect the lives of more than 5 million Americans living ... leading voice in the fight for cure and research into the disease, its ...
(Date:9/22/2017)... ... September 22, 2017 , ... Egg ... life. Although frozen embryos have a slight statistical advantage for live births, frozen ... a wonderful opportunity for women undergoing medical treatment or who are concerned about ...
Breaking Medicine News(10 mins):
(Date:9/18/2017)... R.I. , Sept. 18, 2017 /PRNewswire/ ... the fields of bioinformatics and immune engineering, ... a protective avian influenza A (H7N9) vaccine. ... distantly related to seasonal influenza and presents ... rely on prior exposure to be effective. ...
(Date:9/9/2017)... , Sept. 8, 2017 ... Mobile MRI Unit coming to Washington DC ... When: Tuesday, September 12 th – Monday, September 18 ... D.C. offering free MRI brain scans to the public.Where:  ... be parked at 501 K Street NW, Washington, D.C.What:BTF brings its nationwide ...
(Date:9/7/2017)... Sept. 7, 2017 Caris Life Sciences, ... fulfilling the promise of precision medicine, today announced ... benefits of its molecular profiling approach in guiding ... genomic profiling plus (CGP+) with Caris Molecular Intelligence ... on a molecular level, leading to more therapeutic ...
Breaking Medicine Technology: