Women taking HT had a significantly decreased incidence of fracture with long-term use .
Research ers found no strong evidence that HT has a clinical ly meaningful impact on the incidence of colorectal cancer .
AUTHORS ' CONCLUSIONS : Women with intolerable menopausal symptoms may wish to weigh the benefits of symptom relief against the small absolute risk of harm arising from short-term use of low-dose HT , provided they do not have specific contraindications .
HT may be unsuitable for some women , including those at increased risk of cardiovascular disease , increased risk of thromboembolic disease ( such as those with obesity or a history of venous thrombosis ) or increased risk of some types of cancer ( such as breast cancer , in women with a uterus ) .
The risk of endometrial cancer among women with a uterus taking oestrogen-only HT is well documented .
HT is not indicated for primary or secondary prevention of cardiovascular disease or dementia , nor for prevention of deterioration of cognitive function in postmenopausal women .
Although HT is considered effective for the prevention of postmenopausal osteoporosis , it is generally recommended as an option only for women at significant risk for whom non-oestrogen therapies are unsuitable .
BACKGROUND : Hormone therapy ( HT ) is widely provided for control of menopausal symptoms and has been used for the management and prevention of cardiovascular disease , osteoporosis and  dementia in older women .
This is an up date d version of a Cochrane review first published in 2005 .
OBJECTIVES : To assess effects of long-term HT ( at least 1 year 's duration ) on mortality , cardiovascular outcomes , cancer , gallbladder disease , fracture and cognition in perimenopausal and postmenopausal women during and after cessation of treatment .
Reproductive hormone exposure timing and ischemic heart disease: Complicated answers to a simple question.
Premenopausal women have a relatively lower risk of ischemic heart disease ( IHD )  compared to age matched men and this gender gap narrows after menopause . The observation that the onset of IHD occurs 10 years later in women than it does in men is said to suggest that endogenous reproductive hormones play a protective role . Indeed , animal models and human epidemiological studies suggest that oophorectomy is a risk factor for accelerated IHD . In animal models , hormone therapy ( HT ) has anti-atherosclerotic effects after oophorectomy , HT in the form of oral contraceptives ( OCs ) prevents atherosclerosis in anovulatory cycling women , and large numbers of premenopausal women taking OCs have relative safety from an IHD st and point ( 1 ) . Further , observational epidemiological studies in humans have consistently demonstrated protective effects for IHD among HT users . Such studies are typically performed on relatively younger women where  HT  is prescribed for  vasomotor symptoms during menopausal transition or shortly following menopause . In contrast , clinical trials in older , postmenopausal and often asymptomatic women have demonstrated no overall benefit and early adverse effects when r and omized to a variety of forms of HT ( 1 ) . These data discrepancies have called into question the validity of the reproductive hormone estrogen protection hypothesis , and raise the alternative possibility that  HT efficacy may differ according to the timing of exposure . Stated as a simple question , is the effect of HT on the risk of IHD in relatively young pre- or early menopausal women with vasomotor symptoms , different than it is in older , fully menopausal women ? Data from the Women ’s Ischemia Syndrome Evaluation ( WISE ) , a prospect i ve multi-center NHLBI-sponsored study design ed to explore female-specific pathophysiology in a large sample of women undergoing coronary angiography for suspected IHD ( 2 ) , may shed light on this controversy . These new data , prospect ively obtained using novel methods , including detailed reproductive health question naires , menopausal adjudication algorithms , and quantitative coronary angiography as a measure of atherosclerosis , allow a more precise inspection of this question . However , to answer this simple question we need to first answer others . Specifically , how can we integrate and underst and the findings from the available observational , animal and clinical trial data ? And to interpret these data other questions become relevant : 1 ) How accurately was menopause assessed in prior observational HT studies ? 2 ) Does HT in premenopausal women in the form of OC therapy confirm atherosclerosis benefit ? and 3 ) Does HT in early menopausal women confer reduced atherosclerosis and benefit on the risk of IHD
Women taking HT had a significantly decreased incidence of fracture with long-term use .
Research ers found no strong evidence that HT has a clinical ly meaningful impact on the incidence of colorectal cancer .
AUTHORS ' CONCLUSIONS : Women with intolerable menopausal symptoms may wish to weigh the benefits of symptom relief against the small absolute risk of harm arising from short-term use of low-dose HT , provided they do not have specific contraindications .
HT may be unsuitable for some women , including those at increased risk of cardiovascular disease , increased risk of thromboembolic disease ( such as those with obesity or a history of venous thrombosis ) or increased risk of some types of cancer ( such as breast cancer , in women with a uterus ) .
The risk of endometrial cancer among women with a uterus taking oestrogen-only HT is well documented .
HT is not indicated for primary or secondary prevention of cardiovascular disease or dementia , nor for prevention of deterioration of cognitive function in postmenopausal women .
Although HT is considered effective for the prevention of postmenopausal osteoporosis , it is generally recommended as an option only for women at significant risk for whom non-oestrogen therapies are unsuitable .
BACKGROUND : Hormone therapy ( HT ) is widely provided for control of menopausal symptoms and has been used for the management and prevention of cardiovascular disease , osteoporosis and  dementia in older women .
This is an up date d version of a Cochrane review first published in 2005 .
OBJECTIVES : To assess effects of long-term HT ( at least 1 year 's duration ) on mortality , cardiovascular outcomes , cancer , gallbladder disease , fracture and cognition in perimenopausal and postmenopausal women during and after cessation of treatment .