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Table 3 Sensitivity, specificity and predictive values of items of the SARC-F and calf circumference in screening for sarcopenia in patients with ILD

From: A comparative study of the sarcopenia screening in older patients with interstitial lung disease

SARC-CalF

Positive screening

n (%)

Sensitivity (%)

Specificity (%)

PV+

PV−

Strength

29 (34.5)

33.3

69.0

36.0

66.0

Assistance in walking

8 (9.5)

71.4

72.0

20.0

96.2

Rising from a chair

11 (13.1)

44.4

70.0

16.0

90.1

Climbing stairs

48 (57.1)

34.1

71.0

60.0

45.3

Falls

16 (19.0)

33.3

68.0

20.0

81.1

Calf circumference

48 (57.1)

100

51.0

50.0

100

  1. ILD, interstitial lung disease; PV+, positive predictive value, PV−, negative predictive value; SARC-F, strength, assistance in walking, rising from a chair, climbing stairs, and falls; SARC-CalF, the SARC-F combined with calf circumference