Table 1: Characteristics of final year students in Kagoshima University Faculty of Dentistry from 2005 to 2013.

Variables   Number % Number of matched Kagoshima Univ. % Χ2-test
Gender Male 361 65.2 187 51.8  
Female 193 34.8 80 41.5 0.020*
Age 24 62 11.2 28 45.2  
25 140 25.3 52 37.1  
26 99 17.9 41 41.4  
27 54 9.7 24 44.4  
28 41 7.4 22 53.7  
29 30 5.4 20 66.7  
30～34 84 15.2 53 63.1  
35～39 22 4.0 13 59.1  
40～69 22 4.0 14 63.6 0.002**
Year of graduation 2005 75 13.5 38 50.7  
2006 72 13.0 41 56.9  
2007 64 11.6 32 50.0  
2008 61 11.0 24 39.3  
2009 56 10.1 22 39.3  
2010 57 10.3 30 52.6  
2011 55 9.9 32 58.2  
2012 60 10.8 24 40.0  
2013 54 9.7 24 44.4 0.217
Repeat year No 411 74.2 175 42.6  
Yes 143 25.8 92 64.3 0.000***
Fail the National Exam. No 489 88.3 230 47.0  
Yes 65 11.7 37 56.9 0.134
Hometown Kagoshima prefecture 143 25.8 107 74.8  
Kyushu region (except Kagoshima) 139 25.1 61 43.9  
Shikoku region 31 5.6 10 32.3  
Chugoku region 29 5.2 8 27.6  
Kinki region 80 14.4 36 45.0  
Chubu region 56 10.1 18 32.1  
Kanto region 60 10.8 24 40.0  
Tohoku region, Hokkaido region, Overseas 16 2.9 3 18.8 0.000***
Population of prefectural capital <Kagoshima City 192 34.7 80 41.7  
>Kagoshima City 218 39.4 80 36.7 0.303
(Kagoshima City) (143) (25.8) (107) (74.8)  
(Overseas) (1) (0.0) (0) (0.0)  
Total   554 100.0 267 48.2  

*:p<0.05, **:p<0.01, ***:p<0.001