Biomaterial Database

Etiology of breast cancer. II. Epidemiologic aspects. 1973

D V Vakil, and R W Morgan

The epidemiology of breast cancer is reviewed with particular emphasis on its etiology. A number of studies suggest that differences in breast cancer incidence are associated with differences in marital status, number of pregnancies, age at menarche, age at menopause, height and weight, socioeconomic status, geographic location and residence. However, in no case is the evidence adequate to establish a "cause and effect" relationship. The genetic component of these associations may be of primary importance, while other conditions such as marital status are probably indirect reflections of the operation of more fundamental factors.There is a general consensus that endocrine factors play an important part in mammary cancer occurrence. At present, the association between breast cancer and the presence of the virus-like (type B) particles in human milk is not established.

UI	MeSH Term	Description	Entries
D007194	India	A country in southern Asia, bordering the Arabian Sea and the Bay of Bengal, between Burma and Pakistan. The capitol is New Delhi.	Republic of India
D007198	Indians, North American	Members of indigenous North American populations with pre-colonial contact origins.	Amerinds, North American,Indigenous North Americans,American Indian, North,American, Indigenous North,Amerind, North American,Indian, North American,Indigenous North American,North American Amerind,North American Amerinds,North American Indian,North American Indians,North American, Indigenous
D007557	Israel	A country in the Middle East, bordering the Mediterranean Sea, between Egypt and Lebanon. The capital is Jerusalem.
D007564	Japan	A country in eastern Asia, island chain between the North Pacific Ocean and the Sea of Japan, east of the Korean Peninsula. The capital is Tokyo.	Bonin Islands
D008297	Male		Males
D008324	Mammary Tumor Virus, Mouse	The type species of BETARETROVIRUS commonly latent in mice. It causes mammary adenocarcinoma in a genetically susceptible strain of mice when the appropriate hormonal influences operate.	Bittner Virus,Mammary Cancer Virus,Mouse mammary tumor virus,Mammary Tumor Viruses, Mouse
D008393	Marriage	The social institution involving legal and/or religious sanction whereby individuals are joined together.	Marital Relationship,Arranged Marriage,Commonlaw Marriage,Consensual Union,Consummation of Marriage,Dowry,Husband-Wife Comparisons,Intermarriage,Marriage Age,Marriage Duration,Marriage Patterns,Marriage Postponement,Mate Selection,Multiple Marriages,Nuptiality,Polygamy,Polygyny,Remarriage,Same-Sex Marriage,Age, Marriage,Ages, Marriage,Arranged Marriages,Commonlaw Marriages,Comparison, Husband-Wife,Comparisons, Husband-Wife,Consensual Unions,Dowries,Duration, Marriage,Husband Wife Comparisons,Husband-Wife Comparison,Intermarriages,Marital Relationships,Marriage Ages,Marriage Consummation,Marriage Consummations,Marriage Pattern,Marriage Postponements,Marriage, Arranged,Marriage, Commonlaw,Marriage, Same-Sex,Marriages,Marriages, Arranged,Marriages, Commonlaw,Marriages, Multiple,Marriages, Same-Sex,Mate Selections,Postponement, Marriage,Postponements, Marriage,Relationship, Marital,Relationships, Marital,Remarriages,Same Sex Marriage,Same-Sex Marriages,Selection, Mate,Selections, Mate,Union, Consensual,Unions, Consensual
D008572	Menarche	The first MENSTRUAL CYCLE marked by the initiation of MENSTRUATION.
D008593	Menopause	The last menstrual period. Permanent cessation of menses (MENSTRUATION) is usually defined after 6 to 12 months of AMENORRHEA in a woman over 45 years of age. In the United States, menopause generally occurs in women between 48 and 55 years of age.	Change of Life, Female
D008875	Middle Aged	An adult aged 45 - 64 years.	Middle Age