Risk factors of breast cancer among Iraqi women


  • Sarab K. Abedalrahman Women Health Center, Al-Alwiyaa Maternity Teaching Hospital, Baghdad, Iraq.
  • Besmah M. Ali Department of Public Health, Ghazi Al- Hariri Hospital for Specialized Surgery, Medical City, Baghdad, Iraq.
  • Najim Abid Issa Al-Khalidy Women Health Center, Al-Alwiyaa Maternity Teaching Hospital, Baghdad, Iraq.
  • Ali S. Al-Hashimi Women Health Center, Al-Alwiyaa Maternity Teaching Hospital, Baghdad, Iraq.




Breast cancer, Risk factors, Iraqi women


Objectives: This study aimed to identify the risk factors of Breast Cancer among Iraqi women.

Methods: A retrospective case control study, done on 147 breast cancer cases compared with 161 non- malignant cases selected randomly from women health center in Al-Elwyia maternity teaching hospital.

Results: increased risk for breast cancer significantly associated with increased age especially ≥ 60 years, widow or divorced women(OR 3.7, CI (1.5-8.5)), menopause ((OR 6.43, CI(3.58-11.9)),age at menarche < 12 years (OR 1.99, CI (1.04-3.8)), and use of contraceptive pills for≥ 1 year (OR 1.99, CI (1.01-3.95)).

Conclusion: positive risk factor for breast cancer was old age≥ 60 years, widow or divorced women, menopause, age at menarche < 12 years, and use of contraceptive pills for≥ 1 year. Family history, 2nd degree relative, not associated with breast cancer. There are some discrepancies between our findings and other studies in the literature need further studies.


1. Center, Melissa, Rebecca Siegel, and Ahmedin Jemal. "Global cancer facts & figures." Atlanta: American Cancer Society 3 (2011): 1-52.
2. Iraqi Cancer Board (2015). Results of the Iraqi Cancer Registry 2012. Baghdad, Iraqi Cancer Registry Center, Ministry of Health.
3. Alwan NAS (2016): Breast Cancer among Iraqi women: Preliminary Findings from a Regional Comparative Breast Cancer Research Project. Journal of Global Oncology, ASCO; 2 (1): 1-4.
4. Al-Hashimi, M. M., and Xiang Jun Wang. "Breast cancer in Iraq, incidence trends from 2000-2009." Asian Pacific journal of cancer prevention: APJCP 15.1 (2014): 281-286.
5. McPherson, Klim, CaMa Steel, and J. M. Dixon. "Breast cancer—epidemiology, risk factors, and genetics." Bmj 321.7261 (2000): 624-628.
6. Bhupathiraju SN, Grodstein F, Stampfer MJ, et al. Exogenous hormone use: Oral contraceptives, postmenopausal hormone therapy, and health outcomes in the Nurses' Health Study. American Journal of Public Health 2016; 106(9):1631-1637.
7. Mørch, Lina S., et al. "Contemporary hormonal contraception and the risk of breast cancer." New England Journal of Medicine 377.23 (2017): 2228-2239.
8. Meshram II, Hiwarkar PA, Kulkarni PN. Reproductive risk factors for breast cancer: A case control study. Online J Health Allied Sci 2009;83:5. Back to cited text no. 17
9. Pakseresht S, Ingle GK, Bahadur AK, Ramteke VK, Singh MM, Garg S, et al. Breast cancer among women in Delhi. Indian J Cancer 2009;46:132-8. Back to cited text no. 18
10. Rama, Lodha S., Nandeshwar Sunil, and K. D. Pal. "RISK OF BREAST CANCER IN OBESE WOMEN: A CASE-CONTROL STUDY." National Journal 1.2 (2010): 166.
11. Joseph, Djenaba A., et al. "Prevalence of colorectal cancer screening among adults—behavioral risk factor surveillance system, United States, 2010." MMWR Morb Mortal Wkly Rep 61.Suppl (2012): 51-56.
12. Alwan N. Breast cancer: Demographic characteristics and clinico-pathological presentation of patients in Iraq. Eastern Mediterranean health journal (2010). 16 (11).
13. Lafta RK, Saeed EQ, Isa S A. Risk Factors of Breast Cancer among Women (A Sample from Baghdad). Iraqi J. Comm. Med., 2013 ;26(1):1-6.
14. Ghiasvand R, Maram Er S, Tahmasebi3S and Tabatabaee S H.Risk factors for breast cancer among young women in Southern Iran. Int. J. Cancer: (2011) ; 129: 1443–1449
15. Essiben F, Foumane P, Meka ENU, Soh PS, Sama,JD Osogo E, Mboudou1 ET. Risk Factors for Breast Cancer: A Case-Control Study of 315 Women Followed in the Gynecology and Oncology Departments of Two University Teaching Hospitals in Yaounde, Cameroon. Open Journal of Obstetrics and Gynecology 2016; 6(12): 676-688
16. Robbins SL, Cotran RS, Kumar V (2001) Pocket companion: patholog¬ic basis of disease. (2nd edn), Philadelphia, USA.
17. International Agency for Research on Cancer (2002) IARC hand-books of cancer prevention. Weight control and physical activity. Vol 6, IARC Press, France. ]
18. Altaha M. A. and Al-ani. Reproductive factors and risk of breast cancer. Al anbar Medical journal 2013;11 (1):17-26.]
19. Nkondjock, A. and Ghadirian, P. (2005) [Risk Factors and Risk Reduction of Breast Cancer].Medecine Sciences , 21, 175-180. (In French)
20. Alwan Nada A. S.. Family History among Iraqi Patients Diagnosed with Breast Cancer. International Journal of Science and Research (IJSR) 2017; 6(2): 869-873.
21. Butt Z, Shahbaz U.,2 Naseem T.,3 Ashfaq U.,Khan U. A., Khan M. R., Hashmim A. T.,et al .Reproductive Risk Factors for Female Breast Cancer: A Case – Control Study. ANNALS 2009; 15(4): 206-210.
22. Mahouri K,Zahedani D,Zare S. Breast cancer risk factors in south of Islamic Republic of Iran: a case-control study.East Mediterr Health J 2007 ;13(6):1265-73.
23. Graham AC, Heather JB, Rulla MT. Breast cancer. In: David S, Joseph FF ed. Cancer Epidemiology and Prevention, 3rd ed. New York: Oxford University Press Inc.; 2006:995–1012.
24. Enas Jawad Sahan, Ali Yakub Majid, Ahmad Sa,adi Hassan . Evaluation of Estradiol and Prolactin Serum Levels "In Premenopausal; and Postmenopausal" Women with ((Breast Cancer)) In Baghdad City. Iraqi National Journal of Nursing Specialties2017; 30 (2):111-117.
25. Collaborative Group on Hormonal Factors in Breast Cancer Breast cancer and hormone replacement therapy: collaborative reanalysis of data from 51 epidemiological studies of 52,705 women with breast cancer and 108,411 women without breast cancer. Collaborative Group on Hormonal Factors in Breast Cancer. Lancet 1997; 350(9084):1047-59.
26. Fatima Zahra Laamiri1, Abdellatif Bouayad2, Nadia Hasswane3, Samir Ahid4, Mustapha Mrabet1, Barkat Amina1.Risk Factors for Breast Cancer of Different Age Groups: Moroccan Data?. Open Journal of Obstetrics and Gynecology, 2015, 5, 79-87.
27. Khalis M, Charbotel B, Chajès V, Rinaldi S, Moskal A, Biessy C, et al. Menstrual and reproductive factors and risk of breast cancer: A case-control study in the Fez region, Morocco. PLoS ONE (2018); 13(1): e0191333.
28. Suha Jaryan Jaleel AL-Ramahi. Atheer Jawad A.A. AL-Saffar. Breast Cancer Risk Factors among Iraqi Women from Baghdad/Iraq 2012. Thesis submitted as a Partial Fulfillment for the second part of the Arab Board in Community Medicine 2013:37.
29. Bahir BH, Al-Naqeeb AA., Niazy SM. Risk Factors for Breast Cancer in a Sample of Women. Iraqi J. Comm. Med.2012 ; 25: 4-8.
30. Wang QS, Ross R, Yu MC, Ning JP, Henderson BE, Kimn HT. A case–control study of breast cancer in Tianjin, China. Cancer Epidemiol Biomarkers Prev. 1992;1:435–9.
31. Kumle M, Weiderpass E, Braaten T, Persson I, Adami HO, Lund E. Use of oral contraceptives and breast cancer risk: the Norwegian- Swedish women’s lifestyle and health cohort study. Cancer Epidemiol Biomarkers Prev. 2002; 11(11):1375–81.
32. Norsa adah, B., et al. "Risk factors of breast cancer in women in Kelantan, Malaysia." Singapore medical journal 46.12 (2005): 698.
33. Balekouzou A4, Yin P, Pamatika CM, Bekolo C E, NambeS W, Djeintote M, et al .Reproductive risk factors associated with breast cancer in women in Bangui: a case–control study Balekouzou et al. BMC Women's Health (2017) 17:14
34. Terry, Kathryn L., et al. "Menstrual cycle characteristics and incidence of premenopausal breast cancer." Cancer Epidemiology and Prevention Biomarkers 14.6 (2005): 1509-1513.
35. Grabrick DM, Vierkant RA, Anderson KE, et al. Association of correlates of endogenous hormonal exposure with breast cancer risk in 426 families (United States). Cancer Causes Control 2002;13:333– 41.
36. Gao YT, Shu XO, Dai Q, et al. Association of menstrual and reproductive factors with breast cancer risk: results from the Shanghai Breast Cancer Study. Int J Cancer 2000;87:295–300. [PubMed: 10861490]
37. Clavel-Chapelon F. Cumulative number of menstrual cycles and breast cancer risk: results from the E3N cohort study of French women. Cancer Causes Control 2002;13:831–8.
38. den Tonkelaar I, de Waard F. Regularity and length of menstrual cycles in women aged 41-46 in relation to breast cancer risk: results from the DOM-project. Breast Cancer Res Treat 1996;38:253– 8.
39. Wu AH, Ziegler RG, Pike MC, et al. Menstrual and reproductive factors and risk of breast cancer in Asian-Americans. Br J Cancer 1996;73:680–6.
40. Parazzini F, La Vecchia C, Negri E, Franceschi S, Tozzi L. Lifelong menstrual patterns and risk of breast cancer. Oncology 1993;1993:222–50.
41. Titus-Ernstoff L, Longnecker MP, Newcomb PA, et al. Menstrual factors in relation to breast cancer risk. Cancer Epidemiol Biomarkers Prev 1998;7:783–9.
42. Collaborative Group on Hormonal Factors in Breast Cancer (2001) Familial Breast Cancer: Collaborative Reanalysis of Data from 52 Epidemiological Studies of 58209 Women with Breast Cancer and 101986 Women without the Disease. The Lancet, 358, 1389-1399.
43. Brewer, Hannah R., et al. "Family history and risk of breast cancer: an analysis accounting for family structure." Breast cancer research and treatment 165.1 (2017): 193-200.
44. Ford D, Easton D F, Peto J. Estimates of the gene frequency of BRCA1 and its contribution to breast and ovarian cancer incidence.Am J Hum Genet. 1995 Dec;57(6):1457-62.




How to Cite

Abedalrahman, S. K., Ali, B. M., Al-Khalidy, N. A. I., & Al-Hashimi, A. S. (2019). Risk factors of breast cancer among Iraqi women. Journal of Contemporary Medical Sciences, 5(3), 149–153. https://doi.org/10.22317/jcms.v5i3.609