Table 2 Intrarater reliability of PPG for measuring toe blood pressure and TBI in 60 people with diabetes mellitus
Variable | Assessor | Session 1 Mean (SD) | Session 2 Mean (SD) | ICC3,1 | 95 % CI | SEM |
|---|---|---|---|---|---|---|
Toe pressure, mmHg | 1 | 98.7 (29.3) | 103.3 (24.3) | 0.78 | 0.65 – 0.86 | 8.5 |
Toe pressure, mmHg | 2 | 102.1 (27.3) | 97.5 (23.5) | 0.79 | 0.67 – 0.87 | 7.6 |
Brachial pressure, mmHg | 1 | 130.7 (24.2) | 129.3 (23.3) | 0.42 | 0.19 – 0.61 | 19.5 |
Brachial pressure, mmHg | 2 | 129.1 (22.2) | 127.7 (23.4) | 0.40 | 0.17 – 0.59 | 19.4 |
TBI | 1 | 0.78 (0.26) | 0.81 (0.19) | 0.51 | 0.30 – 0.68 | 0.16 |
TBI | 2 | 0.81 (0.24) | 0.76 (0.18) | 0.72 | 0.57 – 0.82 | 0.08 |