Nguyen RH, Wilcox AJ, Terms in reproductive and perinatal epidemiology: 2. Perinatal terms, in J Epidemiol Community Health, vol. 59, n. 12, dicembre 2005, pp. 1019–21, DOI:10.1136/jech.2004.023465, PMC1732966, PMID16286486. "There is probably no health outcome with a greater number of conflicting, authoritative, legally mandated definitions. The basic WHO definition of fetal death is the intrauterine death of any conceptus at any time during pregnancy. However, for practical purposes, legal definitions usually require recorded fetal deaths to attain some gestational age (16, 20, 22, 24, or 28 weeks) or birth weight (350, 400, 500, or 1000 g). In the US states, there are eight different definitions by combinations of gestational age and weight, and at least as many in Europe."
Nguyen RH, Wilcox AJ, Terms in reproductive and perinatal epidemiology: 2. Perinatal terms, in J Epidemiol Community Health, vol. 59, n. 12, dicembre 2005, pp. 1019–21, DOI:10.1136/jech.2004.023465, PMC1732966, PMID16286486. "There is probably no health outcome with a greater number of conflicting, authoritative, legally mandated definitions. The basic WHO definition of fetal death is the intrauterine death of any conceptus at any time during pregnancy. However, for practical purposes, legal definitions usually require recorded fetal deaths to attain some gestational age (16, 20, 22, 24, or 28 weeks) or birth weight (350, 400, 500, or 1000 g). In the US states, there are eight different definitions by combinations of gestational age and weight, and at least as many in Europe."
