The British Nursing Index (BNI) is a bibliographic database of nursing and midwifery journal articles. The index contains details of English language articles from 1985 to the present, and is updated monthly. As of 2016, the database covers more than 700 journal titles, over half of which are current publications. In 1991, the Nursing and Midwifery Index (NMI) was created by health librarians at Poole Hospital, Salisbury District Hospital and Bournemouth University; this became a database in 1994. In 2011 the database was acquired by ProQuest.