| NLR Group | Estimate | SE | 95%CI | χ2 | P | |
| Lower | Upper | |||||
| Low | 33.11 | 0.44 | 32.24 | 33.97 | 16.55 | 0.00 |
| High | 27.99 | 0.93 | 26.18 | 29.82 | - | - |