=?ISO-8859-1?Q?Re:_[escepticos]_Para_volver_a_los_inicios, _antes_Ev?= =?ISO-8859-1?Q?olucion=5Fhumana, _antes, _lo_?= de ahora, o yo qué sé qué.

[Ramon Diaz-Alersi]

El 22/11/06, david en puntoque.net<david en puntoque.net> escribió:
> Aparte de todo esto, tengo entendido que el cáncer de mama y el de pulmón es
> mucho menor en oriente que aquí... Por contra, el de colon arrasa muchísimo
> más. Sorry, no recuerdo fuentes, pero según el mail, con estas relaciones
> causa-efecto tan bonicas, digo yo que se desprendería que no tomar leche
> provoca cáncer de colon
>  :-/

Pues no:

Nutr Cancer. 2005;53(1):65-72.

Milk consumption in relation to incidence of prostate, breast, colon,
and rectal cancers: is there an independent effect?

* Zhang J, * Kesteloot H.

Department of Epidemiology, College of Public Health, University of
Arkansas for Medical Sciences, Little Rock 72205, USA.
Zhangjianjun en uams.edu

Milk contains a wide variety of ingredients, such as nutrients,
hormones, and chemical contaminants. Whether milk consumption is
associated with the risk of prostate, breast, colon, and rectal
cancers is unclear and was evaluated in this study. Data on milk
consumption for 9 time periods (1964-1994) and incidence rates of
prostate, female breast, colon, and rectal cancers, mostly around
1993-1997, in 38 countries were obtained from the Food and Agriculture
Organization and World Health Organization, respectively. Milk
consumption was strongly correlated with incidence rates of prostate
cancer (r = 0.65-0.69; all P < 0.0001) and breast cancer (r =
0.64-0.74; all P < 0.0001) in all the nine time periods examined. A
modest positive correlation was found for colon and rectal cancers in
both sexes (all P < 0.05, except for rectal cancer in the first three
time periods). The previous findings remained essentially unchanged
after adjustment for vegetable, alcohol, and cigarette consumption but
disappeared after further adjustment for non-milk fat consumption,
except for breast cancer in the last three time periods. The present
study does not support an overall substantial effect of milk
consumption on the risk of prostate, breast, colon, and rectal cancers
at the population level.



-- 
Ramón Díaz-Alersi