Table 3 Pearson correlation coefficient between protoporphyrin IX and muscle quality index
From: Association between protoporphyrin IX and sarcopenia: a cross sectional study
Variables | Average peak force (Newtons) | Skeletal muscle index | Gait speed | |||
|---|---|---|---|---|---|---|
Protoporphyrin (μg/dL RBC) | Correlation | P value | Correlation | P value | Correlation | P value |
−0.182 | < 0.001 | − 0.123 | < 0.001 | − 0.131 | < 0.001 | |