Main findings
A total of 1051 outpatients in this study underwent COVID-19-associated tests, and no NAT positivity was found. Seventy-six cases were diagnosed with abnormal uterine bleeding-related disease (excluding endometrial malignancy), 2019-nCoV antibody positive rate was 6.579%, which is greater than the average positive rate of 3.974%, and the positive rate among patients with other diseases. No nucleic acid positivity was found in the follow-up of 9 IgM-pisitive (and IgG-positive) patients, and no SARS-CoV-2 infection was found in any of the 9 patients’ families.