Is There a Seasonal Pattern to MS Relapses? What Twitter Data Reveals
"A new analysis of Twitter data suggests a potential seasonal trend in multiple sclerosis relapse-related tweets, mirroring findings from Google search data. But what does this mean for those living with MS?"
Multiple sclerosis (MS) is a chronic autoimmune disease affecting the central nervous system. Managing MS often involves understanding factors that can trigger relapses, periods when symptoms worsen. Recent research has explored the possibility of seasonal patterns in MS relapses, with one study analyzing Google searches related to MS. Interestingly, a research group sought to investigate if social media, specifically Twitter, could reveal similar trends, potentially reflecting the 'patient voice' in real-time.
The study leverages the increasing use of social media by patients to share their experiences and concerns, providing a rich source of real-world evidence. By analyzing tweets containing specific keywords related to MS relapse, researchers aimed to determine if there were months with a significantly higher frequency of such mentions.
Using the advanced search tool on Twitter, the research team identified tweets from 2010 to 2015 that included the phrases 'MS relapse' or 'multiple sclerosis relapse.' Retweets were excluded to focus on original posts. The analysis involved examining the frequency of these tweets across different months of the year to identify any statistically significant variations.
Autumn Months Show a Spike in MS Relapse Tweets

The analysis of over 3,200 relevant tweets revealed a potential seasonal pattern. The months of July, September, October, and November showed a statistically significant association with a greater number of tweets mentioning MS relapse. August also trended towards significance, suggesting a broader window of increased activity.
- Vitamin D Connection: The researchers propose that reduced sunlight exposure during these months, leading to lower vitamin D levels, could be a contributing factor. Low vitamin D has been previously linked to an increased risk of MS relapse.
- Twitter Limitations: The authors caution against over-interpreting Twitter data, acknowledging that it may not perfectly represent the experiences of all MS patients. Commercial entities and automated posts can influence the data, and the study was limited to Twitter users, potentially skewing the demographic representation.
- Location Data Missing: The absence of location data for the tweets further complicates the analysis, as geographical variations in sunlight and other environmental factors could play a role.
Web-Based Methods Offer Real-Time Insights
This study, combined with previous research using Google search data, highlights the potential of web-based methods for monitoring disease trends in real-time. Social media platforms like Twitter can serve as valuable resources for gauging the burden of specific conditions and understanding patient perspectives.
While acknowledging the inherent limitations of social media data, the researchers emphasize its utility as an epidemiological tool. By analyzing online conversations, we can gain insights into disease patterns and potential contributing factors that might otherwise be missed.
As web-based analysis techniques continue to evolve, they will likely play an increasingly important role in unraveling the complexities of diseases like multiple sclerosis, potentially leading to more effective management strategies and improved patient outcomes.