Model | Number of nephrologists | Proportion of nephrologists per thousand physicians | ||||||
---|---|---|---|---|---|---|---|---|
Source city | Destination city | Source city | Destination city | |||||
IRR | P | IRR | P | IRR | P | IRR | P | |
Unadjusted | 0.97 [0.97, 0.97] | < 0.001 | 1.02 [1.02, 1.02] | < 0.001 | 0.81 [0.81, 0.81] | < 0.001 | 1.16 [1.16, 1.16] | < 0.001 |
Model 1 | 0.97 [0.97, 0.97] | < 0.001 | 1.02 [1.02, 1.02] | < 0.001 | 0.85 [0.85, 0.85] | < 0.001 | 1.17 [1.17, 1.17] | < 0.001 |
Model 2 | 0.97 [0.97, 0.97] | < 0.001 | 1.04 [1.04, 1.04] | < 0.001 | 0.82 [0.82, 0.82] | < 0.001 | 1.18 [1.18, 1.18] | < 0.001 |
Model 3 | 0.99 [0.99, 0.99] | < 0.001 | 1.07 [1.07, 1.07] | < 0.001 | 0.90 [0.90, 0.90] | < 0.001 | 1.35 [1.35, 1.35] | < 0.001 |