Table 4.
Accuracy of JVP characterization compared to right heart catheterization
| Categorya | Observed | Expected | Pearson’s χ2 | p value |
|---|---|---|---|---|
| Bedside exam | ||||
| Agree | 20 | 16 | 1.625 | 0.44 |
| Disagree by 1 | 15 | 16 | ||
| Disagree by 2 | 13 | 16 | ||
| Unamplified | ||||
| Agree | 13 | 16 | 4.625 | 0.10 |
| Disagree by 1 | 23 | 16 | ||
| Disagree by 2 | 12 | 16 | ||
| Amplified | ||||
| Agree | 17 | 16 | 11.375 | 0.0034 |
| Disagree by 1 | 25 | 16 | ||
| Disagree by 2 | 6 | 16 | ||
JVP jugular venous pressure
a“Agreement” achieved if the assessment categorization was the same as right heart catheterization (e.g., both “borderline”); “disagree by 1” noted if there was a one-category discrepancy (e.g., “normal” and “borderline”); “disagree by 2” noted if there was a two-category discrepancy (e.g., “normal” and “elevated”). Expected values assume a random frequency distribution across categories
Bold value indicate statistical significance