Table 2.
Agreement of Blood Pressure Classification
| Ambulatory BP | Inter‐rater Agreement | ||||||
|---|---|---|---|---|---|---|---|
| NT | G1 | G2 | G3 | κ | SE | 95% CI | |
| Predialysis BP | |||||||
| NT | 32 | 5 | 1 | 0 | 0.58 | 0.07 | 0.44–0.71 |
| G1 | 7 | 21 | 6 | 1 | |||
| G2 | 1 | 1 | 12 | 3 | |||
| G3 | 0 | 0 | 0 | 0 | |||
| Postdialysis BP | |||||||
| NT | 33 | 2 | 1 | 0 | 0.57 | 0.07 | 0.44–0.70 |
| G1 | 6 | 18 | 5 | 0 | |||
| G2 | 1 | 6 | 12 | 3 | |||
| G3 | 0 | 1 | 1 | 1 | |||
Abbreviations: BP, blood pressure; CI, confidence interval; G1, grade 1 hypertension; G2, grade 2 hypertension; G3, grade 3 hypertension; NT, normotension; SE, standard error. Bold values indicate the number of patients classified correctly by dialysis unit BP according to ambulatory BP.