From: Capillary microscopy is a potential screening method for connective tissue disease in children with Raynaud’s phenomenon
Sensitivity (%)
Specificity (%)
PPV (%)
NPV (%)
% correctly classified
ANA screening
66.7
85.9
57.1
90.2
81.7
Capillary loss (< 6/mm)
44.4
84.4
75.6
ANA screening + Capillary loss (< 6/mm)
85.7
90.0
81.5