Quality of web-based information on attention deficit hyperactivity disorder

The limited literature available on quality of online health information about attention deficit hyperactivity disorder (ADHD), reported mixed findings and was more than five years old. This study aimed to assess the content quality, readability, aesthetics, and interactivity of current web-based information on ADHD.

We screened first 50 links obtained on searching for ADHD using two popular search engines (Google and Bing), out of which 44 websites were selected for quality assessment. They were analysed using pre-decided study Performa, which included previously validated DISCERN instrument for content quality. Flesch-Kincaid grade level score and Flesch-Kincaid readability index were calculated for assessing readability.

About 61.4% of websites had DISCERN score ≥40, suggestive of good content quality. However, only 38.6% and 13.6% of websites were written at recommended reading level of eighth and sixth grade respectively. The DISCERN score had significant positive correlation with aesthetics and interactivity scores. Websites with the Health On Net (HON) label had better content quality. No significant difference in the readability, aesthetics, and interactivity of websites with and without the HON label.

This study underscores the need for improving readability of web-based information on ADHD, and highlight important areas for improving the overall quality of websites. The use of HONCode label might guide general public in gauging the content quality of online health information, but not its readability or presentation.