Fig 1.
Flow chart of participants selection.
NHANES, National Health and Nutrition Examination Survey. BRI body round index, HGS handgrip strength, MQI muscle quality index.
Table 1.
Baseline characteristics of participants in the NHANES 2011–2014.
Table 2.
Multivariable logistic regression models for the association between BRI and MQI and HGS.
Table 3.
Stratified analysis of the correlation between BRI and MQI.
Table 4.
Stratified analysis of the correlation between BRI and HGS.
Table 5.
The threshold effect analysis of the BRI on HGS.
Fig 2.
The association between body roundness index and HGS.
The solid red line represents the smooth curve fit between variables and the blue bands represent the 95% confidence interval from the fit. HGS handgrip strength, BRI body round index.
Fig 3.
The association between body roundness index and MQI.
The solid red line represents the smooth curve fit between variables and the blue bands represent the 95% confidence interval from the fit. MQI muscle quality index, BRI body round index.