Table 6.
Model fitting comparison test using multiple logistic ordinal regression approach.
| Models | Res. Df. | Df. | Chisq. | Pr (Chisq) |
|---|---|---|---|---|
| Restricted model | 127 | |||
| Model 1 | 126 | 1 | 6.413 | 0.001 |
| Restricted model | 127 | |||
| Model 2 | 123 | 4 | 6.594 | 0.15 |
| Restricted model | 127 | |||
| Model 3 | 121 | 6 | 10.376 | 0.10 |
| Restricted model | 108 | |||
| Model 4 | 95 | 13 | 17.214 | 0.18 |
Model 1: raw model; model 2: corrected for age, sex, and BMI; model 3: corrected for age, sex, BMI, and tumor location; model 4: corrected for age, sex, BMI, tumor location, length of specimen, previous surgery, staging, clearance/CRM, harvested lymph nodes, and stoma location. Legend: Res.Df.: residual degrees of freedom; Df.: degrees of freedom; Chi: chi squared test value; Pr (Chisq): p value of chi squared distribution. Significance shown in bold.