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Table 2 Distribution of subjects between metropolitan and nonmetropolitan municipalities

From: Education policies to increase rural physicians in Japan: a nationwide cohort study

Category Metroa Non metrob Total % of nonmetro P value RRc of nonmetro 95% CI
PGY-1        
 All graduates 5077 3634 8711 41.7 Reference 1.000 NA–NA
 Scholarship alone 36 76 112 67.9  < 0.001 1.627 1.429–1.852
 Quota alone 68 40 108 37.0  > 0.99 0.888 0.693–1.137
 Quota with scholarship 108 137 245 55.9  < 0.001 1.340 1.196–1.502
 Jichi 69 58 127 45.7  > 0.99 1.095 0.904–1.326
PGY-2        
 All graduates 4938 3271 8209 39.8 reference 1.000 NA–NA
 Scholarship alone 63 67 130 51.5 0.036 1.293 1.093–1.531
 Quota alone 75 53 128 41.4  > 0.99 1.039 0.844–1.279
 Quota with scholarship 94 91 185 49.2 0.051 1.234 1.064–1.433
 Jichi 55 46 101 45.5  > 0.99 1.143 0.922–1.417
PGY-3        
 All graduates 5233 2962 8195 36.1 Reference 1.000 NA–NA
 Scholarship alone 53 61 114 53.5  < 0.001 1.480 1.245–1.761
 Quota alone 56 39 95 41.1  > 0.99 1.136 0.891–1.448
 Quota with scholarship 75 106 181 58.6  < 0.001 1.620 1.429–1.838
 Jichi 19 95 114 83.3%  < 0.001 2.306 2.114–2.515
PGY-4        
 All graduates 4559 3247 7806 41.6 Reference 1.000 NA–NA
 Scholarship alone 48 84 132 63.6%  < 0.001 1.530 1.341–1.745
 Quota alone 57 46 103 44.7%  > 0.99 1.074 0.865–1.333
 Quota with scholarship 44 92 136 67.6%  < 0.001 1.626 1.444–1.832
 Jichi 4 107 111 96.4%  < 0.001 2.317 2.216–2.423
PGY-5        
 All graduates 4171 3201 7372 43.4% Reference 1.000 NA–NA
 Scholarship alone 41 66 107 61.7%  < 0.001 1.421 1.221–1.653
 Quota alone 27 22 49 44.9%  > 0.99 1.034 0.757–1.412
 Quota with scholarship 28 42 70 60.0% 0.031 1.382 1.139–1.676
 Jichi 12 94 106 88.7%  < 0.001 2.042 1.899–2.197
Total        
 All graduates 23,978 16,315 40,293 40.5% Reference 1.000 NA–NA
 Scholarship alone 241 354 595 59.5%  < 0.001 1.469 1.374–1.572
 Quota alone 283 200 483 41.4%  > 0.99 1.023 0.919–1.138
 Quota with scholarship 349 468 817 57.3%  < 0.001 1.415 1.332–1.503
 Jichi 159 400 559 71.6%  < 0.001 1.767 1.675–1.865
  1. PGY postgraduate year; RR relative risk; CI confidence interval; Jichi Jichi Medical University
  2. aMetropolis: wards of the ordinance-designated cities, special wards of Tokyo, and center cities
  3. bNonmetropolis: other cities and towns/villages
  4. cRelative risk of nonmetropolis against metropolis with "all graduates" being the reference group
  5. P value was calculated with Chi-square test with Bonferroni adjustment