Text mining in nursing notes for text characteristics associated with in-hospital falls in older adults: A case-control pilot study

•Falls are common in hospitalized patients, especially in older adults.•Nursing notes contain valuable information on fall risk factors.•Text mining nursing notes for text characteristics in both fallers and non-fallers.•Analysis of word frequencies, use of specific words and combinations of words.•More words in total and unique words used in patients that experienced a fall.