The rise in short interest for Boston Scientific indicates that investors may expect the stock price to decline, which could lead to short-term negative pressure on the stock. However, the fact that it is below the peer average suggests that the sentiment is not as bearish as it could be, which may limit the downside. The importance is moderate because short interest is just one of many factors that can affect stock prices, and the confidence level reflects the uncertainty inherent in using short interest as a sole predictor of stock movement.