OK guys, now you are both getting ME confused about these numbers, and I'm supposed to be writing a book about it!
Voxel: The "independent applicants" category includes *everyone* who is not your typical U.S. seniors. Meaning: IMGs, osteopaths, Canadians, US citizens studying at foreign med schools, physician applicants, etc. The complete list is on the NRMP web site. Unfortunately, the NRMP match data does not distinguish among these types of applicants when reporting data...it just lumps them all together under "independent applicants." And, yes, the 11.1% unmatch rate for rads that I mentioned above is just for US Seniors who only applied to radiology, no other specialties (like the 6.5% for EM).
bigfrank: With regards to EM, the only data that the NRMP provides about "percent unmatched" is for the U.S. Seniors who applied ONLY to EM and did not rank any other specialties on their list. In 2002, there were 858 U.S seniors who ranked just EM programs. Of these 858, 56 did NOT match at all into an EM program, which is 6.5% unmatched. However, there were actually MORE than 858 U.S. seniors who applied to EM. In fact, 1126 U.S. seniors ranked at least one EM program (these 268 additional folks had a back-up specialty, or, used EM as their second specialty). On top of these guys were all the independent applicants (438) applying to EM programs, making a grand total of 1564 applicants ranking EM as a specialty. Remember, there were 1211 total EM positions across all programs. So, the unmatched rate depends on which groups you include.
-If you add together ALL applicants (US + independents), the unmatch rate is 23%, like I mentioned above.
-If you use the number of US seniors who ONLY applied to EM, the unmatch rate was 6.5%.
-If you use the total US seniors who applied to EM+2nd specialty (1126), you have to look at how many of the 1211 positions were filled by US seniors? (The answer is 979). In that case, the unmatch rate is 13%.
So which is the "true" unmatch rate? 6.5, 13, or 23%? I think the answer is whichever set of numbers you feel is the best indicator of competitiveness. You can calculate an unmatch rate in many ways, but I think the best method to guage competition is simply to look at the total number of applicants vs. the total number of available positions, and calculate the unmatch rate based on that. You could break it down between US vs. IMG/DO, etc., but I'm not sure what good that would do. After all, there are many well-qualified independent applicants who will be accepted over a not-so-well-qualified US Senior.
Does this make sense? Let me know if I screwed it up. The numbers are correct, because I have the book in front of me, but I want to make sure we're all interpreting it correctly