Physical activity levels among urban and rural women in south India and the risk of breast cancer: a case-control study.

Breast cancer (BC) incidence in India is approximately 100% higher among urban women than rural women. The role of household activities (HA) among urban and rural women in the development of BC was investigated. The study was conducted between 2002 and 2005, at the Regional Cancer Center, Trivandrum and three cancer hospitals in Chennai.

Breastfeeding and breast cancer risk in India: a multicenter case-control study.

Breast cancer incidence is low in India compared with high-income countries, but it has increased in recent decades, particularly among urban women. The reasons for this pattern are not known although they are likely related to reproductive and lifestyle factors. Here, we report the results of a large case-control study on the association between breastfeeding and breast cancer risk.