| Title |
Younger age is an independent predictor of worse prognosis among Lebanese nonmetastatic breast cancer patients: analysis of a prospective cohort
|
|---|---|
| Published in |
Breast cancer targets and therapy, June 2017
|
| DOI | 10.2147/bctt.s130273 |
| Pubmed ID | |
| Authors |
Alissar El Chediak, Raafat S Alameddine, Ayman Hakim, Lara Hilal, Sarah Abdel Massih, Lana Hamieh, Deborah Mukherji, Sally Temraz, Maya Charafeddine, Ali Shamseddine |
| Abstract |
Several retrospective studies have reported that younger age at presentation is associated with a worse prognosis for nonmetastatic breast cancer patients. In this study, we prospectively assessed the association between different baseline characteristics (age, tumor characteristics, mode of treatment, etc) and outcomes among newly diagnosed nonmetastatic Lebanese breast cancer patients. We recruited a sample of 123 women newly diagnosed with nonmetastatic breast cancer presenting to American University of Beirut Medical Center. Immunohistochemical, molecular (vitamin D receptor, methylene tetrahydrofolate reductase polymorphisms), and genetic assays were performed. Patient characteristics were compared by age group (<40 and ≥40 years). A Cox regression analysis was performed to evaluate the variables affecting the disease-free survival (DFS). Outcome data were obtained, and DFS was estimated. Among the 123 patients, 47 were 40 years of age or younger, and 76 were older than 40 years. Median follow-up duration was 58 months. Nine out of 47 patients <40 years (19.1%) experienced disease relapse in contrast to four out of 76 patients >40 years (5.2%). A wide immunohistochemical panel included Ki-67, cyclin B1, p53, platelet-derived growth factor receptor, and vascular endothelial growth factor receptor, and did not reveal any significant difference in these markers between the two age groups. Older patients had a larger percentage of Luminal A than younger patients. On multivariate analysis including age, stage, grade, and subtype, only age <40 and stage were significantly associated with shorter DFS with hazard ratios of 4 (p=0.03, 95% confidence interval [CI]: 1.1-13.5) and 3 (p=0.03, 95% CI: 0.8-14.9), respectively. The estimated 5-year DFS for patients >40 years was 90%, and for patients <40 years was 37%. Being <40 years old was an independent risk factor for recurrence in this cohort of patients. |
X Demographics
The data shown below were collected from the profile of 1 X user who shared this research output. Click here to find out more about how the information was compiled.
Geographical breakdown
| Country | Count | As % |
|---|---|---|
| Unknown | 1 | 100% |
Demographic breakdown
| Type | Count | As % |
|---|---|---|
| Practitioners (doctors, other healthcare professionals) | 1 | 100% |
Mendeley readers
The data shown below were compiled from readership statistics for 21 Mendeley readers of this research output. Click here to see the associated Mendeley record.
Geographical breakdown
| Country | Count | As % |
|---|---|---|
| Unknown | 21 | 100% |
Demographic breakdown
| Readers by professional status | Count | As % |
|---|---|---|
| Student > Master | 3 | 14% |
| Other | 2 | 10% |
| Professor > Associate Professor | 2 | 10% |
| Researcher | 2 | 10% |
| Student > Ph. D. Student | 1 | 5% |
| Other | 2 | 10% |
| Unknown | 9 | 43% |
| Readers by discipline | Count | As % |
|---|---|---|
| Medicine and Dentistry | 6 | 29% |
| Pharmacology, Toxicology and Pharmaceutical Science | 1 | 5% |
| Psychology | 1 | 5% |
| Nursing and Health Professions | 1 | 5% |
| Unknown | 12 | 57% |
Attention Score in Context
This research output has an Altmetric Attention Score of 1. This is our high-level measure of the quality and quantity of online attention that it has received. This Attention Score, as well as the ranking and number of research outputs shown below, was calculated when the research output was last mentioned on 12 June 2017.
All research outputs
#20,110,957
of 25,584,565 outputs
Outputs from Breast cancer targets and therapy
#211
of 322 outputs
Outputs of similar age
#239,969
of 331,010 outputs
Outputs of similar age from Breast cancer targets and therapy
#14
of 18 outputs
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