"Statistical summary rate based on the number of infant deaths occurring during the same period of time, usually a calendar year, usually given in relation to 1 000 live births occurring among the population during the same year".
Source: Chronic Poverty Research Centre. 2005. "Chronic Poverty Report 2004-05". Chronic Poverty Research Centre. <http://www.chronicpoverty.org/uploads/publication_files/CPR1_appendices..... Accessed 14 May 2020.