::::Here's a summary of the findings: breast cancer in general (including all types) was not more likely in women who reported ever having an abortion. Women who reported miscarriages (spontaneous abortions) were somewhat less likely to get breast cancer, though the effect was fairly small and did not quite meet the criterion for statistical significance. Still speaking of all types of breast cancer, the findings were the same regardless of whether the women ever gave birth, or whether an abortion occurred before or after they gave birth. The hormones estrogen and progesterone are implicated in some breast cancers, so they also looked at these specific cancer types. Reported abortion had no effect on the likelihood of getting estrogen receptor positive or estrogen receptor negative (ER+ or ER-) breast cancer. Progresterone receptor positive (PR+) breast cancer was not related to abortion in women who never had kids, and was a little less likely in women who had kids and reported an abortion compared with those with kids and no abortion (that effect also was not quite statistically significant). PR- negative cancer, though, was 58% more likely in women who reported having an abortion if they also had children at some point. About 80% of the women in the study had children. [[User:Murray|Murray]] 15:40, 24 April 2007 (EDT) | ::::Here's a summary of the findings: breast cancer in general (including all types) was not more likely in women who reported ever having an abortion. Women who reported miscarriages (spontaneous abortions) were somewhat less likely to get breast cancer, though the effect was fairly small and did not quite meet the criterion for statistical significance. Still speaking of all types of breast cancer, the findings were the same regardless of whether the women ever gave birth, or whether an abortion occurred before or after they gave birth. The hormones estrogen and progesterone are implicated in some breast cancers, so they also looked at these specific cancer types. Reported abortion had no effect on the likelihood of getting estrogen receptor positive or estrogen receptor negative (ER+ or ER-) breast cancer. Progresterone receptor positive (PR+) breast cancer was not related to abortion in women who never had kids, and was a little less likely in women who had kids and reported an abortion compared with those with kids and no abortion (that effect also was not quite statistically significant). PR- negative cancer, though, was 58% more likely in women who reported having an abortion if they also had children at some point. About 80% of the women in the study had children. [[User:Murray|Murray]] 15:40, 24 April 2007 (EDT) |