Peripheral but not axial muscle mass is associated with early mortality in bone metastatic lung cancer patients at diagnosis

Joint Bone SpinePublished Prognostic cohort study

Performance · Early mortality (<6 months)Result — go to the resultHazard ratio 0.29 95% CI [0.15; 0.57]

Authors' conclusion

Peripheral muscle mass (standardized ALM by DEXA) but not axial muscle mass (SMI assessed by CT) was associated with early mortality (<6months) suggesting that cancer-induced muscle loss would affect differently appendicular muscles and axial muscles.

Study context

Population
Patients with synchronous bone metastases from lung adenocarcinoma at diagnosis, confirmed by bone biopsy47 (72%) male
Participants
65 patients
Comparison
Peripheral muscle mass vs axial muscle mass as predictors of mortality
  • Appendicular lean mass (ALM)n = 46
Outcome
Early mortality (<6 months)
Follow-up
6 months

Performance

As reported in the abstract

Hazard ratio

0.29

95% CI [0.15; 0.57]

P < 0.001

By group

ALM

0.87

0.76; 0.97

AUC (6-month survival)

Peripheral muscle mass (ALM by DXA)vs axial muscle mass (SMI by CT) as predictors of mortality
HR 0.29 (95% CI [0.15; 0.57]); P < 0.001

Further findings

Later mortality (>6 months)

ALM not associated with later mortality

Correlation of muscle mass indicators

Skeletal muscle index (SMI) indicators correlated with each other (rho)
0.3 to 0.7
SMI moderately correlated with ALM (rho)
0.1 to 0.7

Original publication

Peripheral but not axial muscle mass is associated with early mortality in bone metastatic lung cancer patients at diagnosis. Joint Bone Spine. Published 11 July 2023. doi:10.1016/j.jbspin.2023.105613

Composed by AI from the published abstract and checked against it. How Briefs are made →

Get them every week

New studies on this topic in My Week and in your Monday e-mail.

We e-mail you a sign-in link and a code. No password, no spam.