American Public Education, Inc. APEI provided a correction to its previously announced first-quarter 2023 revenue guidance. During the fourth-quarter 2022 result, APEI expected total revenue to be in the range of $155.1-$157.1 million, which reflected a clerical error. APEI expects this trend to continue through 2023, owing to the impacts of inflation and higher labor costs, particularly at the RU segment and enrollment trends.