Table 3 Diagnostic ability to identify desaturation during 6MWT in all patients.

From: The 1-minute sit-to-stand test to detect desaturation during 6-minute walk test in interstitial lung disease

 

AUC (95% CI)

Sensitivity

Specificity

Cutoff value

1STST nadir SpO2

0.94 (0.86–0.98)

92%

91%

92%

FVC % predicted

0.69 (0.59–0.78)

61%

77%

80.1

DLCO % predicted

0.86 (0.77–0.91)

80%

82%

66.0

PaO2 at rest

0.60 (0.47–0.71)

66%

67%

89.2 Torr

  1. SpO2 pulse oxygen saturation, PaO2 arterial partial pressure of oxygen, 1STST 1 min sit-to-stand test, 6MWT 6 min walk test, FVC forced vital capacity, DLCO diffusion lung capacity for carbon monoxide, AUC area under the curve, CI confidence interval.