RT Journal Article T1 Maternal and perinatal outcomes in high compared to low risk pregnancies complicated by severe acute respiratory syndrome coronavirus 2 infection (phase 2): the World Association of Perinatal Medicine working group on coronavirus disease 2019. A1 D'Antonio, Francesco A1 Sen, Cihat A1 Mascio, Daniele Di A1 Galindo, Alberto A1 Villalain, Cecilia A1 Herraiz, Ignacio A1 Arisoy, Resul A1 Ovayolu, Ali A1 Eroglu, Hasan A1 Guerra-Canales, Manuel A1 Ladella, Subhashini A1 Cojocaru, Liviu A1 Turan, Ozhan A1 Turan, Sifa A1 Hadar, Eran A1 Brzezinski-Sinai, Noa A A1 Dollinger, Sarah A1 Uyaniklar, Ozlem A1 Ocakouglu, Sakine Rahimli A1 Atak, Zeliha A1 Premru-Srsen, Tanja A1 Kornhauser-Cerar, Lilijana A1 Druskovic, Mirjam A1 Ples, Liana A1 Gunduz, Reyhan A1 Agacayak, Elif A1 Schvartzman, Javier Alfonso A1 Malbran, Mercedes Negri A1 Liberati, Marco A1 Sebastiano, Francesca Di A1 Oronzi, Ludovica A1 Cerra, Chiara A1 Buca, Danilo A1 Cagnacci, Angelo A1 Ramone, Arianna A1 Barra, Fabio A1 Carosso, Andrea A1 Benedetto, Chiara A1 Cosma, Stefano A1 Pintiaux, Axelle A1 Daelemans, Caroline A1 Costa, Elena A1 Ozel, Ayşegül A1 Muhçu, Murat A1 Jimenez-Lopez, Jesus S A1 Alvarado, Clara A1 Luengo-Piqueras, Anna A1 Oliva, Dolores Esteban A1 Schera, Giovanni Battista Luca A1 Volpe, Nicola A1 Frusca, Tiziana A1 Samardjiski, Igor A1 Simeonova, Slagjana A1 Papestiev, Irena Aleksioska A1 Hojman, Javier A1 Turkcuoglu, Ilgin A1 Cromi, Antonella A1 Lagana, Antonio Simone A1 Ghezzi, Fabio A1 Sirico, Angelo A1 Familiari, Alessandra A1 Scambia, Giovanni A1 Sukhikh, Zulfiya Khodjaeva Gennady T A1 Gorina, Ksenia A A1 de Sa, Renato Augusto Moreira A1 Vaz, Mariana A1 Feuerschuette, Otto Henrique May A1 Gatta, Anna Nunzia Della A1 Youssef, Aly A1 Donna, Gaetana Di A1 Martinez-Varea, Alicia A1 Loscalzo, Gabriela A1 Morales Rosello, Jose A1 Stefanovic, Vedran A1 Nupponen, Irmeli A1 Nelskyla, Kaisa A1 Ayala, Rodrigo A1 Molpeceres, Rebeca Garrote A1 Vazquez, Asuncion Pino A1 Sandri, Fabrizio A1 Cataneo, Ilaria A1 Lenzi, Marinella A1 Haberal, Esra Tustas A1 Huertas, Erasmo A1 Sanchez, Amadeo A1 Arango, Pedro A1 Bermejo, Amanda A1 Gonzalez-Alcantara, Maria Monica A1 Goynumer, Gokhan A1 Okuyan, Erhan A1 Madalina, Ciuhodaru A1 Guisan, Ana Concheiro A1 Martinez-Schulte, Alejandra A1 Esposito, Valentina A1 De-Robertis, Valentina A1 Zdjelar, Snezana A1 Lackovic, Milan A1 Mihajlovic, Sladjana A1 Jekova, Nelly A1 Saccone, Gabriele A1 Aslan, Mehmet Musa A1 Dedda, Maria Carmela Di A1 Chalid, Maisuri A1 Moros-Canache, Jose Enrique A1 Daskalakis, George A1 Antsaklis, Panos A1 Vega, Enrique Criado A1 Cueto, Elisa A1 Taccaliti, Chiara A1 Aykanat, Yeliz A1 Ozlem Genç, Şerife A1 Froessler, Bernd A1 Radulova, Petya Angelova A1 Morano, Danila A1 Bianchi, Beatrice A1 Marino, Maria Giulia Lombana A1 Meccariello, Gabriella A1 Rohatgi, Bindu A1 Schiattarella, Antonio A1 Morlando, Maddalena A1 Colacurci, Nicola A1 Villasco, Andrea A1 Biglia, Nicoletta A1 Santos-Marques, Ana Luiza A1 Gatti, Alessandra A1 Luvero, Daniela A1 Angioli, Roberto A1 Pittaro, Alejandro A1 Lila, Albert A1 Zlatohlavkova, Blanka K1 Coronavirus K1 Coronavirus disease 2019 K1 Infection K1 Pregnancy K1 Severe acute respiratory syndrome coronavirus 2 AB It has still to be ascertained whether severe acute respiratory syndrome coronavirus 2 infection in pregnancy is associated with worse maternal and fetal outcomes compared to low risk gestations. This study aimed to evaluate maternal and perinatal outcomes in high- and low-risk pregnancies complicated by severe acute respiratory syndrome coronavirus 2 infection. This was a multinational retrospective cohort study involving women with laboratory-confirmed severe acute respiratory syndrome coronavirus 2 infection from 76 centers from 25 countries in Europe, the United States, South America, Asia, and Australia from April 4, 2020, to October 28, 2020. The primary outcome was a composite measure of maternal mortality and morbidity, including admission to the intensive care unit, use of mechanical ventilation, or death. The secondary outcome was a composite measure of adverse perinatal outcome, including miscarriage, fetal loss, neonatal and perinatal death, and admission to the neonatal intensive care unit. All outcomes were assessed in high- and low-risk pregnancies. Pregnancies were considered high risk in case of either preexisting chronic medical conditions in pregnancy or obstetrical disorders occurring in pregnancy. The Fisher exact test and logistic regression analysis were used to analyze the data. A total of 887 singleton pregnancies who tested positive for severe acute respiratory syndrome coronavirus 2 infection using reverse transcription-polymerase chain reaction of nasal and pharyngeal swab specimens were included in the study. The risk of composite adverse maternal outcomes was higher in high-risk pregnancies than in low-risk pregnancies (odds ratio, 1.52; 95% confidence interval, 1.03-2.24; P=.035). In addition, women carrying high-risk pregnancies were at higher risk of hospital admission (odds ratio, 1.48; 95% confidence interval, 1.07-2.04; P=.002), presence of severe respiratory symptoms (odds ratio, 2.13; 95% confidence interval, 0.41-3.21; P=.001), admission to the intensive care unit (odds ratio, 2.63; 95% confidence interval, 1.42-4.88), and invasive mechanical ventilation (odds ratio, 2.65; 95% confidence interval, 1.19-5.94; P=.002). When exploring perinatal outcomes, high-risk pregnancies were at high risk of adverse perinatal outcomes (odds ratio, 1.78; 95% confidence interval, 0.15-2.72; P=.009). However, such association was mainly because of the higher incidence of miscarriage in high-risk pregnancies compared with that in low-risk pregnancies (5.3% vs 1.6%, P=.008); furthermore, there was no difference in other explored outcomes between the 2 study groups. At logistic regression analysis, maternal age (odds ratio, 1.12; 95% confidence interval, 1.02-1.22; P=.023) and high-risk pregnancy (odds ratio, 4.21; 95% confidence interval, 3.90-5.11; P High-risk pregnancies complicated by severe acute respiratory syndrome coronavirus 2 infection were at higher risk of adverse maternal outcomes than low-risk pregnancies complicated by severe acute respiratory syndrome coronavirus 2 infection. PB Elsevier YR 2021 FD 2021-02-10 LK http://hdl.handle.net/10668/17224 UL http://hdl.handle.net/10668/17224 LA en NO D'Antonio F, Sen C, Mascio DD, Galindo A, Villalain C, Herraiz I, et al. Maternal and perinatal outcomes in high compared to low risk pregnancies complicated by severe acute respiratory syndrome coronavirus 2 infection (phase 2): the World Association of Perinatal Medicine working group on coronavirus disease 2019. Am J Obstet Gynecol MFM. 2021 Jul;3(4):100329 DS RISalud RD Jun 1, 2025