In 2010 I attempted to estimate the impact of Trip, the results can be seen here, but the important point was an estimate that 40.77% of searches improve patient care.  Within that post I discussed why the 40.77% might be too high and why it might be too low – there are good reasons on both sides.

In 2013 Trip was searched 4 millions times.  So, 40.77% = 1,630,800.

Bottom line: in 2013 Trip helped improve patient care over 1.6 million times.

Oh yes, we were also mentioned in over 350 systematic reviews and/or articles (see here).