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Fig. 4 | BMC Cancer

Fig. 4

From: Early postoperative decrease of skeletal muscle mass predicts recurrence and poor survival after surgical resection for perihilar cholangiocarcinoma

Fig. 4

Overall and recurrence-free survival with respect to changes in skeletal muscle index (SMI) or serum carbohydrate antigen 19–9 (CA 19–9) levels in the late postoperative period. a Overall survival of patients in whom SMI decreased or increased postoperatively (42 months [95% confidence interval (95% CI), 31–64] vs. not reached (NR) [95% CI, 52-NR], P = 0.003). b Recurrence-free survival of patients in whom SMI decreased or increased postoperatively (28 months [95% CI, 16–38] vs. 42 months [95% CI, 21-NR], P = 0.013). c Overall survival of patients with serum CA 19–9 > 37 or ≤ 37 U/mL (31 months [95% CI, 24–34] vs. 87 months [95% CI, 63-NR], P <  0.001). d Recurrence-free survival of patients with serum CA 19–9 > 37 or ≤ 37 U/mL (16 months [95% CI, 13–19] vs. 47 months [95% CI, 28-NR], P <  0.001). P = 0.003)

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