Quality of information about mental disease on the Internet: A comparative and longitudinal study of entries form Baidu Encyclopedia and Wikipedia (Preprint)

Abstract

BACKGROUND The Internet has evolved the approaches of medical information spread. Demands of online information searching on mental disease expanded. The Wikipedia and Baidu Encyclopedia are popular information source. Websites with information on mental disease have not been systematically evaluated. OBJECTIVE The research aimed to estimate the quality of mental disease information on the internet and to evaluate all aspects including timeliness to value the information quality from Baidu Encyclopedia and Wikipedia to help users to make better choice. Besides, establishing a perfect relevant online health information examine and supervision system, in order to satisfy public self-help mental medical information service needs. METHODS We retrieved the entries on mental disease from the International Statistical Classification of Diseases and Related Health Problems 10th Revision Version 2016 codes on Wikipedia (in English) and Baidu Encyclopedia (in Chinese) in 2018 and 2021. Subject sites were accessed by DISCERN. The comparison between 2 engines as well as 3 years follow-up and timeliness were calculated. RESULTS The number of entries on mental disease we found in 2018 is 34 on Baidu Encyclopedia and 36 on Wikipedia and 37 entries on both Baidu Encyclopedia and Wikipedia in 2021. In 2018, the DISCERN score of Baidu Encyclopedia entries in section 1 and section 3 were lower than those of Wikipedia articles (11.21±4.57 vs 26.25±3.21, p<.001; 2.06±.74 vs 2.53±.94, p<.05). Significantly differences can also be found in total score and all sections in 2021 between 2 engines (total score, 26.29±11.03 vs 44.31±9.77, all 3 sections, p<.001). The DISCERN score of Wikipedia articles during 3 years showed significant increase (all 3 sections, p<.001; total, p<.001). The mean update interval varies greatly from Baidu Encyclopedia (824.79 days in 2018; 945.73 days in 2021) to Wikipedia (34.17 days in 2018;50.46 days in 2021) (p<.001). CONCLUSIONS Despite the general poor quality of mental disease entries in both two engines, Wikipedia expressed to be a better source of online mental disease information compared to Baidu Encyclopedia, with higher reliability, better treatment advice and shorter update interval. Our findings reflected the existing deficit of general website mental health information, suggested a reference for further and better medical network information order. Based on this foundation, it is essential to encourage people to seek professional help rather than believe the ambiguous source information from Internet. The quality of these entries has been improved during 3 years. This positive trend is encouraging that we can expect better online information service in the coming future.