Assessing the readability and quality of online information on Bell's palsy

Abstract Objective This study aimed to evaluate the readability and quality of current online information on Bell's palsy. Method A Google search using the terms ‘Bell's palsy’ and ‘facial palsy’ was performed separately. The first three pages of results were analysed. Readability was assessed using Flesch Reading Ease Score, Flesch–Kincaid Grade Level, the Gunning-Fog Index and the Simple Measure of Gobbledygook. Quality was assessed using the Discern tool. Spearman's correlation between quality and readability was calculated. Results A total of 31 websites met the inclusion criteria. The mean Flesch Reading Ease Score, Flesch–Kincaid Grade Level, the Gunning Fox Index and the Simple Measure of Gobbledygook scores were 52.45 (95 per cent confidence interval = 47.01–57.86), 10.50 (95 per cent confidence interval = 9.42–11.58), 12.76 (95 per cent confidence interval = 11.68–13.85) and 9.36 (95 per cent confidence interval = 8.52–10.20), respectively. The average Discern score was 44 (95 per cent confidence interval = 40.88–47.12). A negligible correlation was noted between the Discern and Flesch Reading Ease Score ( r s = −0.05, p = 0.80). Conclusion Online information on Bell's palsy is generally of fair quality but is written above the recommended reading age guidance in the UK.