Table 3.
Simple linear regression for MDP.
| β | 95% CI of β | p value | |
|---|---|---|---|
| Age | 0.00 | –0.03∼0.02 | 0.78 |
| Gender | 0.09 | –0.77∼0.96 | 0.83 |
| Side of TIP implantation | –0.62 | –1.66∼0.42 | 0.24 |
| TIP and CICC in the same side | –0.38 | –0.86∼0.11 | 0.13 |
| Control/Assist–control mode | –0.29 | –0.86∼0.27 | 0.30 |
| In a calm state | –2.31 | –2.87 ∼ –1.76 | <0.01 |
| Under sedation | –0.16 | –1.45∼1.12 | 0.80 |
| CVHR | 7.15 | –1.29∼15.59 | 0.10 |
| CVRR | –2.73 | –5.39∼ –0.08 | 0.04 |
β, unstandardized regression coefficient; CI, confidence interval; CICC, central inserted central catheter; TIP, totally implanted port; MDP, the mean difference between pressure measured by CICC and TIP in each record; CVHR, the coefficient of variation of heart rate; CVRR, the coefficient of variation of respiratory rate.