Groups | Control group (n = 75) | Research group (n = 75) | t | P value |
Catheter retention time (d) | 2.92 ± 1.41 | 11.53 ± 6.91 | 10.69 | <0.001 |
Total number of punctures (times) | 3.35 ± 1.61 | 1.07 ± 0.25 | 12.48 | <0.001 |