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Figure 4: Shows receiver operator curve (ROC) for studying sensitivity and specificity of serum albumin, inferior vena cava diameter (IVCD) and inferior vena cava collapsibility index (IVCC) as a predictor for intradialytic hypotension (IDH). The curve shows that IVCC is the only predictor for IDH which has a high sensitivity and specificity (area under curve for IVCC = 79%). Cutoff point = 52.5%. At this cutoff point, sensitivity of IVCC for detection of IDH = 78%, while specificity is 70%. |
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