Table 5 Threshold effect analysis of triglyceride glucose index and arthritis using the two-segment piecewise linear regression model
From: The association between triglyceride glucose index and arthritis: a population-based study
Arthritis | Adjusted β (95% CI) P value |
|---|---|
TyG index | Â |
Inflection point | 8.08 |
TyG index < Inflection point | 2.01 (1.46, 2.75) < 0.0001 |
TyG index > Inflection point | 1.05 (0.97, 1.15) 0.2235 |
Log-likelihood ratio | < 0.001 |
below 60 years | Â |
Inflection point | 8.09 |
TyG index < Inflection point | 2.80 (1.84, 4.25) < 0.0001 |
TyG index > Inflection point | 1.13 (1.01, 1.27) 0.0368 |
Log-likelihood ratio | < 0.001 |
no diabetes | Â |
Inflection point | 8.07 |
TyG index < Inflection point | 2.06 (1.46, 2.90) < 0.0001 |
TyG index > Inflection point | 1.09 (0.98, 1.21) 0.1083 |
Log-likelihood ratio | 0.001 |
normal weight | Â |
Inflection point | 9.06 |
TyG index < Inflection point | 1.65 (1.34, 2.02) < 0.0001 |
TyG index > Inflection point | 0.82 (0.49, 1.39) 0.4677 |
Log-likelihood ratio | 0.025 |