Utami, Sri2014-05-222014-05-222014-05-22978-602-18936-0-9wahyu sari yenihttp://repository.unri.ac.id/xmlui/handle/123456789/6290The incidence of preterm very varied. In developed countries the incidence ranges between 5-10% of all deliveries in the United States the incidence of preterm delivery ranges from 8-10% (Hacker, 2002), in Indonesia range from 10-20% in 2008. Analytical studies have been conducted with a retrospective review, the factors associated with preterm labor who were born in Arifin period of January 1 - December 31, 2011. The study found no significant relationship between age of mothers with preterm delivery, there is no significant relationship between peritas with preterm labor, there is a significant association between weight and the incidence of eclampsia severe Pre Eklamasi with preterm labor, there is no significant association between the incidence of Premature Rupture Of Membrane (PRM) with preterm labor and there is a significant association between the incidence of Haemorrhagic Ante Partum (HAP) with preterm labor.enfactorspreterm laborUR-Proceedings