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. 2025 Sep 3;12:1599971. doi: 10.3389/fnut.2025.1599971

Table 2.

Multivariate linear regression analysis of DI-GM and serum Klotho.

Characteristic Model 1 Model 2 Model 3
β (95% CI) p-value β (95% CI) p-value β (95% CI) p-value
DI-GM (continuous) 3.98 (1.31, 6.66) 0.004 5.29 (2.60, 7.98) <0.001 4.05 (1.31, 6.80) 0.004
DI-GM (group)
0–3 Reference Reference Reference
4 13.03 (−2.22, 28.28) 0.094 13.60 (−1.52, 28.73) 0.078 12.04 (−3.04, 27.12) 0.118
5 15.62 (0.80, 30.43) 0.039 17.10 (2.37, 31.83) 0.023 14.86 (0.15, 29.57) 0.048
≥6 21.42 (8.05, 34.80) 0.003 26.71 (13.32, 40.09) <0.001 21.65 (8.14, 35.17) 0.002
p for trend <0.001 <0.001 <0.001

Model 1: No covariates were adjusted. Model 2: Adjusted for age, gender, and race. Model 3: Adjusted for age, gender, race, education level, marital status, PIR, BMI, smoking status, alcohol consumption, diabetes, hypertension, CVD, and stroke.