Table 5 Variation of variable before and after propensity score matching (n = 4, caliper = 0.02)
Variable | Mean | SD | Deviation reduction | t | P value | |
|---|---|---|---|---|---|---|
SMI of host city | SMI of hometown | |||||
Migrant range | ||||||
Match before | 1.71 | 1.83 | -15.6 | 90.70 | -3.43 | 0.001 |
After matching | 1.71 | 1.73 | -2.80 | -0.26 | 0.796 | |
Average household monthly income | ||||||
Match before | 1.66 | 1.91 | -25.5 | 75.00 | -5.47 | 0.000 |
After matching | 1.66 | 1.60 | 6.40 | 1.19 | 0.233 | |
Short-stay intention | ||||||
Match before | 1.11 | 1.22 | -29.20 | 86.10 | -6.02 | 0.000 |
After matching | 1.11 | 1.12 | -4.10 | -0.80 | 0.425 | |
Settlement intention | ||||||
Match before | 1.51 | 1.66 | -29.60 | 83.60 | -6.70 | 0.000 |
After matching | 1.52 | 1.54 | -4.90 | -0.82 | 0.411 | |
Health record | ||||||
Match before | 1.74 | 1.87 | -18.90 | 78.00 | -4.44 | 0.000 |
After matching | 1.75 | 1.71 | 4.20 | 0.70 | 0.485 | |
Migrant time | ||||||
Match before | 2.26 | 1.84 | 48.70 | 94.80 | 10.86 | 0.000 |
After matching | 2.26 | 2.28 | -2.50 | -0.44 | 0.661 | |
Migrant reason | ||||||
Match before | 1.79 | 1.68 | 11.50 | 38.10 | 2.70 | 0.007 |
After matching | 1.78 | 1.71 | 7.10 | 1.24 | 0.216 | |