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Comparison of the incidence of vascular access infection in different time periods between the two groups (n (%)).
| Group | 4 w afterintervention | 6 w afterintervention | 8 w afterintervention | 12 w afterintervention |
|---|---|---|---|---|
| Risk management group (n = 50) | 1 (2.00) | 3 (6.00) | 5 (10.00) | 6 (12.00) |
| Control group (n = 50) | 3 (6.00) | 8 (16.00) | 13 (26.00) | 17 (34.00) |
| χ 2 or continuity-corrected χ2 | 1.042 | 2.554 | 4.336 | 6.832 |
| P | 0.307 | 0.110 | 0.037 | 0.009 |
