Table 2.
Showing the descriptive statistics and pairwise comparison of the clusters obtained through the K-means cluster analysis, including the binary class feature of hospital length of stay. **** p < 0.0001.
| BMI | Number_of_Levels | Op_Time | Preoperative_CRP | Age | Frequencies | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Mean | Std. Deviation | Mean | Std. Deviation | Mean | Std. Deviation | Mean | Std. Deviation | Mean | Std. Deviation | Normal | Prolonged | ||
| Cluster | High risk | 28.31 | 5.649 | 1.62 | 1.022 | 104.92 | 58.253 | 23.72 | 51.250 | 73.2094 | 12.37884 | 0 | 63 |
| Low risk | 27.53 | 5.531 | 1.14 | 0.382 | 65.58 | 43.776 | 10.11 | 32.706 | 56.6354 | 15.86603 | 172 | 0 | |
| Combined | 27.74 | 5.562 | 1.27 | 0.656 | 76.13 | 51.034 | 13.76 | 38.912 | 61.0787 | 16.69396 | 172 | 63 | |
| p-value | **** | **** | **** | **** | **** | **** | **** | **** | **** | **** | **** | ||