[Sick leave during pregnancy: an analysis of French hospitals from 2005 until 2008 demonstrates the major importance for jobs with physical demands].

Introduction: sick-leave in the course of pregnancy play a role under estimated according to several studies.They bring to light the existence of risk factors concerning the physical load for contractions, sick-leave, hospitalizations and prematurity.The data obtained on the totality of the wage earners of the AP-HP allow to avoid all the possible bias and to determine the potential impact of a policy of reduction of the physical load

Method: The data of four years could be analyzed.