@article {Hawkinsbmjqs-2015-004309, author = {Jared B Hawkins and John S Brownstein and Gaurav Tuli and Tessa Runels and Katherine Broecker and Elaine O Nsoesie and David J McIver and Ronen Rozenblum and Adam Wright and Florence T Bourgeois and Felix Greaves}, title = {Measuring patient-perceived quality of care in US hospitals using Twitter}, elocation-id = {bmjqs-2015-004309}, year = {2015}, doi = {10.1136/bmjqs-2015-004309}, publisher = {BMJ Publishing Group Ltd}, abstract = {Background Patients routinely use Twitter to share feedback about their experience receiving healthcare. Identifying and analysing the content of posts sent to hospitals may provide a novel real-time measure of quality, supplementing traditional, survey-based approaches.Objective To assess the use of Twitter as a supplemental data stream for measuring patient-perceived quality of care in US hospitals and compare patient sentiments about hospitals with established quality measures.Design 404 065 tweets directed to 2349 US hospitals over a 1-year period were classified as having to do with patient experience using a machine learning approach. Sentiment was calculated for these tweets using natural language processing. 11 602 tweets were manually categorised into patient experience topics. Finally, hospitals with >=50 patient experience tweets were surveyed to understand how they use Twitter to interact with patients.Key results Roughly half of the hospitals in the US have a presence on Twitter. Of the tweets directed toward these hospitals, 34 725 (9.4\%) were related to patient experience and covered diverse topics. Analyses limited to hospitals with >=50 patient experience tweets revealed that they were more active on Twitter, more likely to be below the national median of Medicare patients (p\<0.001) and above the national median for nurse/patient ratio (p=0.006), and to be a non-profit hospital (p\<0.001). After adjusting for hospital characteristics, we found that Twitter sentiment was not associated with Hospital Consumer Assessment of Healthcare Providers and Systems (HCAHPS) ratings (but having a Twitter account was), although there was a weak association with 30-day hospital readmission rates (p=0.003).Conclusions Tweets describing patient experiences in hospitals cover a wide range of patient care aspects and can be identified using automated approaches. These tweets represent a potentially untapped indicator of quality and may be valuable to patients, researchers, policy makers and hospital administrators.}, issn = {2044-5415}, URL = {https://qualitysafety.bmj.com/content/early/2015/10/07/bmjqs-2015-004309}, eprint = {https://qualitysafety.bmj.com/content/early/2015/10/07/bmjqs-2015-004309.full.pdf}, journal = {BMJ Quality \& Safety} }