Figure 4: The world perinatal mortalities after 28 weeks of pregnancy estimated from UNICEF maternal mortalities in 1994 and 2001, where perinatal mortality after 28 weeks=maternal mortality×0.30+4.30. The perinatal mortalities were mildly improved, because the countries (%) of 40 or less perinatal mortality increased and the perinatal mortality peaks shifted from 130 to 120.