IVF link to to breast cancer - study

Comment on this story


ivf pic from reuters

REUTERS

The rise in the number of single women using fertility treatment has left some concerned that the trend reflects the wider erosion of traditional families.

Women who go through in vitro fertilisation (IVF) early in life are at a higher risk of developing breast cancer compared to those who don't undergo the treatment, according to an Australian study.

But the findings, based on a study of more than 21,000 women and published in the journal Fertility and Sterility, cannot determine whether IVF contributed to the cancers or whether something else could explain the risk.

“I don't think it's a huge increased risk that you should worry or panic (about),” said Louise Stewart, the study's lead author and a researcher at the University of Western Australia in Crawley.

She added, however, that the findings did show a link between the two and doctors should keep that in mind.

For the study, Stewart and her colleagues collected information on 21,025 women between the ages of 20 and 40 who went through fertility treatment at the hospitals of Western Australia between 1983 and 2002.

They were able to piece together enough data to follow the women for some 16 years to see if they developed breast cancer.

Roughly 1.7 percent of the 13,644 women who only used fertility drugs without IVF ended up developing breast cancer by the end of the study. That figure was about two percent for women who used fertility drugs and underwent IVF - a difference that researchers said wasn't statistically significant.

When they divided the women into different age groups, though, that changed.

Women who started taking fertility drugs around their 24th birthday and went through IVF had a 56 percent greater chance of eventually developing breast cancer compared to those in the same age group who only went through fertility treatments without IVF.

But there was no increased risk for women who started fertility treatments when they were about 40 years old, regardless of whether they had IVF or not.

Stewart told Reuters Health that a possible reason that younger women see an increased risk of breast cancer is that they are exposed to higher levels of circulating oestrogen during their cycles of IVF treatment.

“The development of breast cancer is linked to estrogen exposure and the longer one is exposed, the greater the risk,” said Linda Giudice, president-elect of the American Society of Reproductive Medicine, in a statement.

“In an IVF cycle there is a short, but significant elevation in circulating estrogen, and whether this is linked to the observations found in the study is not clear at this time.”

Stewart added that another explanation could be that younger women who undergo IVF may be different in some significant way from those who only have other types of fertility treatment.

“If, for example, younger women who had IVF were more likely to have a specific cause of infertility, and this was related to an increased risk of breast cancer, then it would appear that IVF was related to breast cancer when in fact it was the type of infertility that was more common in women who had IVF,” she said.

She emphasised that this is just speculation, adding that the data used in the study didn't include information about the women's causes of infertility - and that the current study's results need to be confirmed by future research. - Reuters

Get our free Lifestyle newsletter - subscribe here...


sign up
 
 

Comment Guidelines



  1. Please read our comment guidelines.
  2. Login and register, if you haven’ t already.
  3. Write your comment in the block below and click (Post As)
  4. Has a comment offended you? Hover your mouse over the comment and wait until a small triangle appears on the right-hand side. Click triangle () and select "Flag as inappropriate". Our moderators will take action if need be.

     

zama1zn
I'm a 37 year old woman looking to meet men between the ages of 38 and 47.
View Profile
LadyJimpster
I'm a 23 year old woman looking to meet men between the ages of 22 and 28.
View Profile
AWELANI
I'm a 29 year old woman looking to meet men between the ages of 33 and 50.
View Profile
Jade_76
I'm a 38 year old woman looking to meet men between the ages of 36 and 44.
View Profile
kauwel
I'm a 40 year old woman looking to meet men between the ages of 39 and 55.
View Profile
briluu
I'm a 24 year old woman looking to meet men between the ages of 27 and 37.
View Profile
DDeeZA
I'm a 45 year old woman looking to meet women between the ages of 19 and 50.
View Profile
hlehle888
I'm a 41 year old woman looking to meet men between the ages of 45 and 50.
View Profile
Royalness
I'm a 29 year old woman looking to meet men between the ages of 30 and 45.
View Profile
Rosey903
I'm a 40 year old woman looking to meet men between the ages of 38 and 45.
View Profile
Mbaliholysexyness
I'm a 19 year old woman looking to meet men between the ages of 19 and 27.
View Profile
PrincessEdelweiss
I'm a 43 year old woman looking to meet men between the ages of 35 and 50.
View Profile
mitch09
I'm a 29 year old woman looking to meet men between the ages of 35 and 40.
View Profile
Baabbygirl
I'm a 27 year old woman looking to meet men between the ages of 27 and 36.
View Profile
Leematt
I'm a 25 year old woman looking to meet men between the ages of 25 and 29.
View Profile
tkay011
I'm a 23 year old woman looking to meet women between the ages of 25 and 45.
View Profile
Calmine
I'm a 24 year old woman looking to meet men between the ages of 25 and 40.
View Profile
danda100
I'm a 47 year old woman looking to meet men between the ages of 37 and 52.
View Profile
Garnet3107
I'm a 44 year old woman looking to meet men between the ages of 35 and 45.
View Profile
ntando_784
I'm a 34 year old woman looking to meet men between the ages of 40 and 50.
View Profile
leez83
I'm a 31 year old woman looking to meet men between the ages of 25 and 42.
View Profile
MeltChocolate
I'm a 35 year old woman looking to meet men between the ages of 40 and 50.
View Profile
CYAGal
I'm a 28 year old woman looking to meet men between the ages of 35 and 50.
View Profile
autre007
I'm a 38 year old woman looking to meet men between the ages of 30 and 49.
View Profile
lulubaby
I'm a 33 year old woman looking to meet men between the ages of 30 and 70.
View Profile
Sweatma72
I'm a 42 year old woman looking to meet men between the ages of 25 and 45.
View Profile
marryme2014
I'm a 34 year old woman looking to meet men between the ages of 37 and 45.
View Profile
ME_JE
I'm a 43 year old woman looking to meet men between the ages of 35 and 50.
View Profile
MASESHIA
I'm a 28 year old woman looking to meet men between the ages of 27 and 40.
View Profile
Yahoo
I'm a 42 year old woman looking to meet men between the ages of 41 and 60.
View Profile
gloml66
I'm a 48 year old woman looking to meet men between the ages of 40 and 58.
View Profile
skati43
I'm a 43 year old woman looking to meet men between the ages of 45 and 60.
View Profile
ranga322
I'm a 32 year old woman looking to meet men between the ages of 31 and 40.
View Profile
LavishT
I'm a 21 year old woman looking to meet men and women between the ages of 25 and 27.
View Profile
0cean_ntr
I'm a 38 year old woman looking to meet men between the ages of 25 and 45.
View Profile
Mistry_lady
I'm a 41 year old woman looking to meet men between the ages of 35 and 45.
View Profile
Shazzyyyy
I'm a 29 year old woman looking to meet men between the ages of 28 and 35.
View Profile
ChocLatte
I'm a 44 year old woman looking to meet men between the ages of 40 and 60.
View Profile
fungi1971
I'm a 43 year old woman looking to meet men between the ages of 40 and 50.
View Profile
Cyndilouper
I'm a 35 year old woman looking to meet men between the ages of 30 and 45.
View Profile
Zama101
I'm a 29 year old woman looking to meet men between the ages of 29 and 100.
View Profile
Rivee
I'm a 24 year old woman looking to meet men between the ages of 26 and 32.
View Profile
Sthandwasakhesit
I'm a 29 year old woman looking to meet men between the ages of 30 and 35.
View Profile
SexLips
I'm a 26 year old woman looking to meet men between the ages of 25 and 45.
View Profile
Smashizo
I'm a 29 year old woman looking to meet men between the ages of 32 and 37.
View Profile
curvalicious
I'm a 30 year old woman looking to meet men between the ages of 25 and 45.
View Profile
Funfoodie3012
I'm a 49 year old woman looking to meet men between the ages of 45 and 55.
View Profile
sweetnessmgm
I'm a 26 year old woman looking to meet men between the ages of 40 and 63.
View Profile
xoxohayleyxoxo
I'm a 26 year old woman looking to meet men between the ages of 18 and 100.
View Profile
vicky74
I'm a 40 year old woman looking to meet men between the ages of 38 and 45.
View Profile
Noxy727
I'm a 27 year old woman looking to meet men between the ages of 30 and 36.
View Profile
sassyfoxylady101
I'm a 33 year old woman looking to meet men between the ages of 25 and 45.
View Profile
FiftyshadesB
I'm a 40 year old woman looking to meet men between the ages of 32 and 45.
View Profile
khens02
I'm a 44 year old woman looking to meet men between the ages of 40 and 60.
View Profile
smilyz
I'm a 43 year old woman looking to meet men between the ages of 35 and 48.
View Profile
honeybee_036
I'm a 25 year old woman looking to meet men between the ages of 25 and 50.
View Profile
BOTSHELOMAN
I'm a 32 year old woman looking to meet men between the ages of 35 and 42.
View Profile
spesy59
I'm a 35 year old woman looking to meet men between the ages of 32 and 40.
View Profile
kgotlas
I'm a 34 year old woman looking to meet men between the ages of 30 and 45.
View Profile
TT200
I'm a 25 year old woman looking to meet men between the ages of 25 and 35.
View Profile
Bathandwa83
I'm a 31 year old woman looking to meet men between the ages of 31 and 47.
View Profile
Leratomntande
I'm a 23 year old woman looking to meet men between the ages of 25 and 30.
View Profile
joocypie
I'm a 28 year old woman looking to meet men between the ages of 27 and 45.
View Profile
ProVoq
I'm a 43 year old woman looking to meet men between the ages of 50 and 70.
View Profile
kncyLuv
I'm a 28 year old woman looking to meet men between the ages of 27 and 45.
View Profile
Nola_505
I'm a 40 year old woman looking to meet men between the ages of 35 and 47.
View Profile
RareT0paz
I'm a 35 year old woman looking to meet men between the ages of 38 and 60.
View Profile
MissD123
I'm a 39 year old woman looking to meet men between the ages of 36 and 47.
View Profile
RealBlackPearl
I'm a 22 year old woman looking to meet men between the ages of 25 and 35.
View Profile
Dlodlolas75
I'm a 39 year old woman looking to meet men between the ages of 43 and 49.
View Profile
Casiopiea40
I'm a 44 year old woman looking to meet men between the ages of 35 and 50.
View Profile
kafze
I'm a 29 year old woman looking to meet men between the ages of 29 and 45.
View Profile
Whitneyz
I'm a 32 year old woman looking to meet men between the ages of 30 and 45.
View Profile
Melone
I'm a 27 year old woman looking to meet men between the ages of 30 and 42.
View Profile
Bizkit2808
I'm a 38 year old woman looking to meet men between the ages of 30 and 45.
View Profile
maria8022
I'm a 34 year old woman looking to meet men between the ages of 40 and 60.
View Profile
sbobo736
I'm a 27 year old woman looking to meet men between the ages of 25 and 45.
View Profile
TABIEE
I'm a 29 year old woman looking to meet men between the ages of 40 and 100.
View Profile
Mag137
I'm a 60 year old woman looking to meet men between the ages of 57 and 67.
View Profile
FanceFace
I'm a 27 year old woman looking to meet men between the ages of 28 and 45.
View Profile
LolliCandy
I'm a 20 year old woman looking to meet men between the ages of 21 and 35.
View Profile
simphy337
I'm a 30 year old woman looking to meet men between the ages of 35 and 45.
View Profile
Bonwel
I'm a 30 year old woman looking to meet men between the ages of 32 and 36.
View Profile
fiksBee
I'm a 25 year old woman looking to meet men between the ages of 26 and 40.
View Profile
pumpania
I'm a 27 year old woman looking to meet men between the ages of 28 and 40.
View Profile
mcgoyer
I'm a 26 year old woman looking to meet men between the ages of 27 and 35.
View Profile
Ticom_199
I'm a 29 year old woman looking to meet men between the ages of 29 and 45.
View Profile
mello_185
I'm a 26 year old woman looking to meet men between the ages of 25 and 60.
View Profile
ally_charmy80
I'm a 34 year old woman looking to meet men between the ages of 40 and 55.
View Profile
armor2014
I'm a 55 year old woman looking to meet men between the ages of 45 and 70.
View Profile
Roroe
I'm a 26 year old woman looking to meet men and women between the ages of 22 and 30.
View Profile
Blaq_chic
I'm a 26 year old woman looking to meet men between the ages of 25 and 45.
View Profile
Dudutuli246
I'm a 34 year old woman looking to meet men between the ages of 35 and 50.
View Profile
hellena_596
I'm a 37 year old woman looking to meet men between the ages of 37 and 45.
View Profile
Noks76
I'm a 38 year old woman looking to meet men between the ages of 37 and 45.
View Profile
Foxy88
I'm a 22 year old woman looking to meet men between the ages of 25 and 33.
View Profile
nwaolisa
I'm a 31 year old woman looking to meet men between the ages of 32 and 41.
View Profile
Sweetlipsss627
I'm a 21 year old woman looking to meet men between the ages of 25 and 50.
View Profile
samke_722
I'm a 22 year old woman looking to meet men between the ages of 22 and 25.
View Profile
kiara_111
I'm a 24 year old woman looking to meet men between the ages of 26 and 35.
View Profile
hawk619
I'm a 44 year old man looking to meet women between the ages of 35 and 45.
View Profile
mesut909
I'm a 45 year old man looking to meet women between the ages of 25 and 55.
View Profile
gothicD
I'm a 44 year old man looking to meet women between the ages of 18 and 37.
View Profile
Sparberry
I'm a 42 year old man looking to meet women between the ages of 32 and 40.
View Profile
Ma1010n
I'm a 26 year old man looking to meet women between the ages of 25 and 45.
View Profile
GD1
I'm a 70 year old man looking to meet women between the ages of 55 and 65.
View Profile
Lucky123nxt
I'm a 36 year old man looking to meet women between the ages of 18 and 40.
View Profile
Shadra143
I'm a 22 year old man looking to meet women between the ages of 18 and 45.
View Profile
Oupa0414
I'm a 29 year old man looking to meet women between the ages of 25 and 33.
View Profile
Thamza_77
I'm a 37 year old man looking to meet women between the ages of 18 and 35.
View Profile
Romeo_57
I'm a 57 year old man looking to meet women between the ages of 25 and 45.
View Profile
Sabloma
I'm a 45 year old man looking to meet women between the ages of 20 and 35.
View Profile
charged
I'm a 40 year old man looking to meet women between the ages of 25 and 35.
View Profile
dlalo
I'm a 44 year old man looking to meet women between the ages of 18 and 100.
View Profile
Dalubuhle
I'm a 27 year old man looking to meet men between the ages of 26 and 45.
View Profile
alpha114
I'm a 34 year old man looking to meet women between the ages of 18 and 35.
View Profile
sbo123sss
I'm a 30 year old man looking to meet women between the ages of 25 and 45.
View Profile
Jono693
I'm a 42 year old man looking to meet women between the ages of 25 and 45.
View Profile
Seriousaboutlife325
I'm a 38 year old man looking to meet women between the ages of 18 and 100.
View Profile
JonnyBee
I'm a 26 year old man looking to meet women between the ages of 19 and 28.
View Profile
Wyne_
I'm a 27 year old man looking to meet women between the ages of 20 and 29.
View Profile
mattgeah
I'm a 31 year old man looking to meet women between the ages of 25 and 40.
View Profile
bigbhele
I'm a 34 year old man looking to meet women between the ages of 18 and 55.
View Profile
Jabz_0
I'm a 29 year old man looking to meet women between the ages of 25 and 36.
View Profile
IceTy
I'm a 42 year old man looking to meet women between the ages of 18 and 42.
View Profile
Lawrence218
I'm a 26 year old man looking to meet women between the ages of 25 and 39.
View Profile
Clownstotheleftofme
I'm a 45 year old man looking to meet women between the ages of 32 and 41.
View Profile
Eriqnes
I'm a 33 year old man looking to meet women between the ages of 21 and 35.
View Profile
Smooth_Kriminal
I'm a 27 year old man looking to meet men between the ages of 25 and 45.
View Profile
gario
I'm a 54 year old man looking to meet women between the ages of 18 and 50.
View Profile
TSKgosiemang
I'm a 52 year old man looking to meet women between the ages of 35 and 50.
View Profile
mfhalim
I'm a 42 year old man looking to meet women between the ages of 18 and 35.
View Profile
catcher182
I'm a 22 year old man looking to meet men between the ages of 20 and 24.
View Profile
Masterrapture
I'm a 49 year old man looking to meet women between the ages of 21 and 45.
View Profile
mixido2
I'm a 39 year old man looking to meet women between the ages of 18 and 35.
View Profile
Terror000
I'm a 28 year old man looking to meet women between the ages of 25 and 45.
View Profile
PoundzMm
I'm a 23 year old man looking to meet women between the ages of 23 and 30.
View Profile
Jb24golf
I'm a 40 year old man looking to meet women between the ages of 30 and 45.
View Profile
Thami_VS
I'm a 43 year old man looking to meet women between the ages of 29 and 42.
View Profile
sweetman465
I'm a 67 year old man looking to meet women between the ages of 48 and 62.
View Profile
Ophion
I'm a 21 year old man looking to meet men between the ages of 25 and 45.
View Profile
Siwithpie
I'm a 44 year old man looking to meet women between the ages of 23 and 45.
View Profile
Rendzo
I'm a 47 year old man looking to meet women between the ages of 25 and 45.
View Profile
Deejay_homy
I'm a 46 year old man looking to meet women between the ages of 18 and 42.
View Profile
bloodmoney370
I'm a 43 year old man looking to meet women between the ages of 30 and 50.
View Profile
SSBK547P
I'm a 39 year old man looking to meet women between the ages of 18 and 30.
View Profile
GWL321
I'm a 58 year old man looking to meet women between the ages of 46 and 56.
View Profile
dlarah
I'm a 45 year old man looking to meet women between the ages of 30 and 40.
View Profile
shiva709
I'm a 56 year old man looking to meet women between the ages of 45 and 56.
View Profile
Mxo87
I'm a 27 year old man looking to meet women between the ages of 18 and 30.
View Profile
bangstar
I'm a 22 year old man looking to meet women between the ages of 19 and 23.
View Profile
lookingforfunza
I'm a 36 year old man looking to meet women between the ages of 20 and 40.
View Profile
tripplekkkk
I'm a 37 year old man looking to meet women between the ages of 18 and 30.
View Profile
Siyabulela90
I'm a 24 year old man looking to meet men between the ages of 25 and 45.
View Profile
Gemini24
I'm a 45 year old man looking to meet women between the ages of 30 and 45.
View Profile
Thulani1234
I'm a 42 year old man looking to meet women between the ages of 27 and 45.
View Profile
Henry071
I'm a 28 year old man looking to meet women between the ages of 25 and 35.
View Profile
Chacal
I'm a 44 year old man looking to meet women between the ages of 30 and 40.
View Profile
LIONKING915
I'm a 59 year old man looking to meet women between the ages of 38 and 50.
View Profile
Satisfactor99
I'm a 37 year old man looking to meet women between the ages of 18 and 35.
View Profile
Minkh
I'm a 30 year old man looking to meet women between the ages of 18 and 29.
View Profile
lmn4life
I'm a 37 year old man looking to meet women between the ages of 28 and 35.
View Profile
bobbylava
I'm a 35 year old man looking to meet women between the ages of 18 and 31.
View Profile
Washe
I'm a 37 year old man looking to meet women between the ages of 25 and 33.
View Profile
Deathrow5662
I'm a 39 year old man looking to meet women between the ages of 25 and 35.
View Profile
CoolnCalm
I'm a 35 year old man looking to meet women between the ages of 25 and 45.
View Profile
MGW
I'm a 62 year old man looking to meet women between the ages of 35 and 65.
View Profile
dev_xoxox52
I'm a 53 year old man looking to meet women between the ages of 41 and 65.
View Profile
myth909
I'm a 34 year old man looking to meet women between the ages of 25 and 45.
View Profile
Bento1
I'm a 52 year old man looking to meet women between the ages of 38 and 50.
View Profile
mcD
I'm a 39 year old man looking to meet women between the ages of 25 and 40.
View Profile
THOKZANHLA
I'm a 44 year old man looking to meet women between the ages of 25 and 44.
View Profile
TuEsDAy
I'm a 52 year old man looking to meet women between the ages of 35 and 55.
View Profile
Diva1308
I'm a 43 year old man looking to meet women between the ages of 18 and 100.
View Profile
Moxion
I'm a 27 year old man looking to meet women between the ages of 18 and 35.
View Profile
shooter_949
I'm a 51 year old man looking to meet women between the ages of 20 and 50.
View Profile
Kelvin7777
I'm a 50 year old man looking to meet women between the ages of 42 and 56.
View Profile
Bongza116
I'm a 38 year old man looking to meet women between the ages of 18 and 31.
View Profile
choeu
I'm a 42 year old man looking to meet women between the ages of 25 and 45.
View Profile
wanagetyou
I'm a 39 year old man looking to meet women between the ages of 25 and 32.
View Profile
Qtip
I'm a 30 year old man looking to meet women between the ages of 26 and 32.
View Profile
loner729
I'm a 40 year old man looking to meet women between the ages of 25 and 45.
View Profile
Mok_01
I'm a 42 year old man looking to meet women between the ages of 28 and 35.
View Profile
tonym
I'm a 44 year old man looking to meet women between the ages of 24 and 35.
View Profile
Phistos_Number_1
I'm a 38 year old man looking to meet women between the ages of 30 and 40.
View Profile
Vbe2014
I'm a 37 year old man looking to meet women between the ages of 25 and 30.
View Profile
Fanzonator
I'm a 28 year old man looking to meet women between the ages of 25 and 45.
View Profile
gwbyo
I'm a 41 year old man looking to meet men between the ages of 21 and 40.
View Profile

Business Directory