Fig. 3

The popularity of medical students according to the interim matching rate. The average ratio among the 397 general hospitals was 101.9%. The ratio in most populated cities (≥ 2,000,000) was 142.7%, which was significantly higher than that in other cities (< 100,000, < 200,000, < 400,000, < 600,000, and < 1,000,000). The broken line shows this average number. The box plot shows standard error. *p < 0.05 in Tukey’s test