| Title |
Reproductive factors associated with breast cancer risk in northern Iran
|
|---|---|
| Published in |
Medical Oncology, April 2010
|
| DOI | 10.1007/s12032-010-9498-z |
| Pubmed ID | |
| Authors |
K. O. Hajian-Tilaki, T. Kaveh-Ahangar |
| Abstract |
Breast cancer is a common malignancy for women in most parts of the world and the incidence in Iranian women is growing. The patients are relatively younger than their western counterparts. The aim of study was to investigate the roles of reproductive factors for breast cancer in Babol. In a case-control study in Babol, we recruited a total of 100 new patients with histologically confirmed breast cancer and 200 age-matched controls selected from outpatient clinics. Demographic and reproductive factors were ascertained by in-person interview using a constructed questionnaire. Several potential confounding factors were adjusted using multiple logistic model. The adjusted odds ratio showed that having higher age at first pregnancy and abortion were associated with increased breast cancer risk (the adjusted OR = 4.1, 95% CI: 1.3-13.2 and 2.93, 95% CI: 1.64-5.24, respectively). By increasing parity, the risk had reduced significantly; among women with parity ≥ 5, the adjusted OR was 0.09 (95% CI 0.01-0.7) compared with nulliparous women, and also for each additional parity, the risk reduced by 50% (OR = 0.50, 95% CI: 0.34-0.71). The duration of breast feeding was inversely associated with breast cancer risk, while after additional adjustment for parity, no longer the protective effect of breast feeding was observed. Nulliparity, late age at first birth and abortion were the most important reproductive factors associated with breast cancer risk; therefore, it is recommended to women with these risk factors to perform breast cancer screening tests earlier. |
X Demographics
The data shown below were collected from the profiles of 2 X users who shared this research output. Click here to find out more about how the information was compiled.
Geographical breakdown
| Country | Count | As % |
|---|---|---|
| United States | 1 | 50% |
| Unknown | 1 | 50% |
Demographic breakdown
| Type | Count | As % |
|---|---|---|
| Members of the public | 2 | 100% |
Mendeley readers
The data shown below were compiled from readership statistics for 23 Mendeley readers of this research output. Click here to see the associated Mendeley record.
Geographical breakdown
| Country | Count | As % |
|---|---|---|
| Unknown | 23 | 100% |
Demographic breakdown
| Readers by professional status | Count | As % |
|---|---|---|
| Student > Master | 5 | 22% |
| Student > Ph. D. Student | 4 | 17% |
| Student > Bachelor | 2 | 9% |
| Student > Postgraduate | 2 | 9% |
| Professor > Associate Professor | 1 | 4% |
| Other | 1 | 4% |
| Unknown | 8 | 35% |
| Readers by discipline | Count | As % |
|---|---|---|
| Medicine and Dentistry | 8 | 35% |
| Nursing and Health Professions | 4 | 17% |
| Biochemistry, Genetics and Molecular Biology | 1 | 4% |
| Agricultural and Biological Sciences | 1 | 4% |
| Pharmacology, Toxicology and Pharmaceutical Science | 1 | 4% |
| Other | 0 | 0% |
| Unknown | 8 | 35% |
Attention Score in Context
This research output has an Altmetric Attention Score of 2. 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 16 July 2012.
All research outputs
#13,359,365
of 22,661,413 outputs
Outputs from Medical Oncology
#511
of 1,280 outputs
Outputs of similar age
#74,310
of 95,095 outputs
Outputs of similar age from Medical Oncology
#20
of 21 outputs
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