Table 3: Multiple logistic regression analysis of background factors associated with selection of hometown.

    Odds Ratio 95% C.I. P value
  Lower Upper  
Gender Female 1.82 1.02 3.22 0.041*
Age 24 (as standard)        
25 0.54 0.21 1.38 0.199
26 0.63 0.23 1.71 0.365
27 0.37 0.11 1.19 0.096
28 1.74 0.40 7.50 0.458
29 0.89 0.11 6.96 0.913
30～34 0.34 0.10 1.21 0.095
35～39 0.40 0.07 2.37 0.313
40～69 0.72 0.10 5.05 0.737
Graduation year 2005 (as standard)        
2006 0.97 0.87 1.09 0.625
Repeat year Yes 1.68 0.72 3.94 0.229
Fail the National Exam. Yes 1.54 0.52 4.54 0.434
Hometown Kyushu reigion (except Kagoshima) (as standard)        
Shikoku region 0.90 0.32 2.56 0.849
Chugoku region 0.87 0.30 2.46 0.789
Kinki region 0.25 0.11 0.59 0.002**
Chubu region 1.00 0.43 2.34 0.993
Kanto region 0.34 0.14 0.81 0.015*
Tohoku region, Hokkaido region, Overseas 0.51 0.14 1.85 0.307

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