Kozhimannil studies the health policies that impact healthcare, quality and outcomes during pregnancy and childbirth. In particular, she has evaluated the increasing rates of maternal mortality in marginalised communities in the
United States. She has shown that women who live in less populated rural communities are 9% more likely to die during childbirth than those who live in cities. Kozhimannil has also evaluated the role of
Doula care during childbirth of women on
Medicaid in
Minnesota, and showed that they can decrease the chances of a
caesarean section, result in better birth outcomes and save money. == Awards and honours ==