High socioeconomic status (most often defined by high income and/or high education level) has been linked to an increased risk of breast cancer [121-126]. The reason for this relates to differences in risk factors found in women of different education and income levels [122-126]. For example, compared to women of lower socioeconomic status, women of higher socioeconomic status tend to have theirfirst child at a later age and have fewer children. These factors increase the risk of breast cancer [123,127].
Updated 11/09/09
