Factors Associated With Quality of Online Information on Trapeziometacarpal Arthritis

People increasingly search the Internet for information about common medical problems such as trapeziometacarpal (TMC) joint arthritis. But this information can be biased, inaccurate, and misleading. Medical professionals should be aware of what patients may be reading about their condition because concepts and beliefs can affect symptoms, limitations, and decision making. This study sought factors associated with the quality of design and content of health information Web sites about TMC arthritis.

Using 3 search engines we entered "thumb arthritis" and measured the quality of design and content of 67 Web sites using the DISCERN and LIDA tools, dominant tones using the IBM Watson Tone Analyzer, and readability, and we recorded Web site characteristics. All but 1 Web site exceeded the recommended sixth-grade reading level. We created 2 backward stepwise regression models to identify independent factors associated with Web site design and content quality.

In multivariable analysis, the Web site not having a clear preference for treatment was independently associated with greater design and content quality measured by DISCERN. Health On the Net (HON) code certification-a code of conduct for medical Web sites-and nonprofit Web sites had higher LIDA scores.

Online information on TMC arthrosis is difficult to read, often biased in favor of a particular treatment and influenced by profit and HONcode.

Hand surgeons should prepare to gently correct misconceptions established or reinforced, in part, by material found on the Internet.