Oops, you're using an old version of your browser so some of the features on this page may not be displaying properly.

MINIMAL Requirements: Google Chrome 24+Mozilla Firefox 20+Internet Explorer 11Opera 15–18Apple Safari 7SeaMonkey 2.15-2.23

Poster lunch

2041 - Breast cancer risk and reproductive status in Naypyitaw region, Myanmar (570P)


18 Nov 2017


Poster lunch


Seine Thaung


Annals of Oncology (2017) 28 (suppl_10): x177-x182. 10.1093/annonc/mdx668


S.L.L. Thaung1, M. Thiha2, S.N. Nyi2, K.K. Nwe3, M.M.T. Oo4

Author affiliations

  • 1 Naypyitaw General Hospital, Naypyitaw General hospital, 11072 - Naypyitaw/MM
  • 2 Naypyitaw General Hospital, Naypyitaw General hospital, Naypyitaw/MM
  • 3 Taungoo General Hospital, Taungoo General Hospital, Taungoo/MM
  • 4 Mawlamyine General Hospital, Mawlamyine General Hospital, Mawlamyine/MM


Abstract 2041


Breast cancer is a major public health problem and is the most commonly diagnosed cancer in Myanmar women who have lived around Naypyitaw Region. High rate of breast cancer in developed countries are associated with increase prevalence of known risk factors like nulliparity or low parity where as higher parity might account of relative lower incidence of breast cancer. Although menopause itself is not associated with an increased risk of developing cancer, two main factors (increasing age and obesity) are linked with a higher risk of cancer after menopause. Since Myanmar is developing country, we want to know that these risks are also observed in our patients. We aimed to evaluate the differences and similarities in the risk factors of female breast cancer according to menopausal status and parity with previous establish data.


Data from 230 breast cancer women who have registered at Naypyitaw General Hospital, Oncology ward from January 1st to the end of 2016 were reviewed and analyzed.


Out of 230 patients, 91 patients (39.56%) were premenopausal (age range (25-48) years) and 139 patients (60.43%) had reached menopause (age range (40-82) years). Among nulliparous or single patients, 26 patients (36.61%) were premenopausal and 45 patients (63.38%) were postmenopausal. For the parous women, 67 patients (42.13%) were premenopausal and 92 patients (57.86%) were postmenopausal. According to the parity, single or nulliparous were found in 71 patients (30.86%), primiparous in 20 patients (8.69%), parity (2-4) in 109 patients (47.39%) and parity ≥5 in 30 patients (13.04%).Table: 570P

Parity risk with breast cancer

ParityPatients (%)
Nulliparous or Single71 (30.86%)
Primiparous20 (8.69%)
Multiparous139 (60.43%)


In this study, most of our patients are postmenopausal and this finding supports the previous established data. But the majority of our breast cancer patients are multiparous and this finding is deviated from the established fact that multiparous is a protective factors against breast cancer. But we don’t yet have a conclusive issue to this, as our findings are based only on Naypyitaw region only. Further studies are required to confirm this finding.

Clinical trial identification

Legal entity responsible for the study

Naypyitaw General Hospital




All authors have declared no conflicts of interest.

This site uses cookies. Some of these cookies are essential, while others help us improve your experience by providing insights into how the site is being used.

For more detailed information on the cookies we use, please check our Privacy Policy.

Customise settings
  • Necessary cookies enable core functionality. The website cannot function properly without these cookies, and you can only disable them by changing your browser preferences.