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Sex-segregated correlation coefficients of muscle mass for different abdominal muscle groups with age.
| Patient sex | Erector spinae | Gluteus medius | Lateral abdominals | Psoas | Quadratus lumborum | Rectus abdominis |
|---|---|---|---|---|---|---|
| Female | − 0.27 (p < 0.001) | 0.22 (p = 0.002) | − 0.20 (p = 0.006) | − 0.33 (p < 0.001) | − 0.56 (p < 0.001) | − 0.30 (p < 0.001) |
| Male | − 0.39 (p < 0.001) | − 0.04 (p = 0.622) | − 0.19 (p = 0.017) | − 0.47 (p < 0.001) | − 0.55 (p < 0.001) | − 0.30 (p < 0.001) |
