INTRODUCTIONPrenatal care (PN) may contribute to more favorable maternal and perinatal outcomes by enabling early detection and timely treatment of various diseases; in addition to the control of some risk factors that cause complications to women's health and that of newborns (1) .In Brazil, although infant mortality rates have decreased in recent decades, this decline has been uneven across states and municipalities, as well as between areas of a specific municipality (2,3) . To improve national rates and decrease these regional differences, the Brazilian government has taken several measures to increase women's access to prenatal care, in order to qualify the actions developed within it and to modify the model of health care for deliveries.For pregnant women of normal risk, the Program for Humanization of Prenatal and Birth (PHPB) established basic rules for qualified and humanized care, recommending a first prenatal care consultation before the fourth month of pregnancy, at least six prenatal visits (one in the first trimester of pregnancy, two in the second and three in the third), and puerperal consultation until 42 days after birth (4) .Furthermore, in the city of São Paulo, with the goal of improving the quality of maternal-infant care, the Network for the Protection of the Paulistana Mother (Rede de Proteção à Mãe Paulistana) was created in 2006 (5) , which works by way of articulation, integration and monitoring of ambulatory healthcare services as well as municipal and state hospitals. This program aims to ensure: registration and connection of pregnant women to primary healthcare units (PHU) near their homes; inclusion of pregnant women exclusively in the primary healthcare network, regulating the entry point into the healthcare system; linking of pregnant women to reference hospitals in their region and means of transport.Despite the expansion of teams in the Family Health Strategy Service (FHSS) in the municipal healthcare system in São Paulo, the most recent study that evaluated the quality of the prenatal care network occurred in the mid-2000s (6) , and did not specifically focus on primary care. Therefore, there is a knowledge gap, especially in the regions of greatest vulnerability in São Paulo. Recent studies indicate that prenatal care offered by FHSS teams is more in line with the regulations of the PHPB than in the PHU, which has a more traditional organization (7,8) .The objectives of this study were therefore constituted as follows: to analyze the healthcare process of PN in a unit of the FHSS, in accordance with the indicators of the PHPB, and compare the adequacy of the PN with sociodemographic variables, clinical procedures and obstetrics, examinations and maternal and perinatal outcomes.
METHODThis study is part of the project Prenatal assessment in a region of the southern area of São Paulo, funded by the National Council for Scientific and Technological Development -CNPq (Case No. 485.264/2011-0), approved by the Research Ethics Committee of the sponsoring institution and the co-par...