Maternal clinical characteristics and perinatal outcomes among pregnant women with coronavirus disease 2019. A systematic review.

Objective: To describe the maternal clinical characteristics, maternal and perinatal outcomes in COVID-19-positive pregnant women.

Methods: Articles in all languages on the SARS-CoV-2 infection in pregnant women were sought from MEDLINE, EMBASE, Cochrane Library and LILACS; China National Knowledge Infrastructure Database (CNKI), Chinese Science and Technology Periodical Database (VIP) and Wan Fang Data between December 1, 2019 and April 27, 2020. Bulletins and national reports were also searched.