Table 2.
Inter-site comparison of absolute differences & true differences in mmHg.
| Variable | n | Absolute Difference | True Difference | |||
|---|---|---|---|---|---|---|
| Mean (SD) | Range (min-max) | Mean (SD) | Range (min-max) | |||
| Left arm | Systolic | 75 | 7.87 (7.23) | 30 (0–30) | 0.61 (10.71) | 56 (−30–26) |
| vs | Diastolic | 6.33 (5.58) | 25 (0–25) | 0.76 (8.44) | 40 (−15–25) | |
| Right arm | MAP | 6.23 (5.80) | 27 (0–27) | 0.89 (8.49) | 48 (−21–27) | |
| Left arm | Systolic | 67 | 10.16 (7.07) | 32 (1–33) | −1.45 (12.36) | 53 (−20–33) |
| vs | Diastolic | 7.18 (6.18) | 26 (0–26) | −1.93 (9.31) | 47 (−24–21) | |
| Right wrist | MAP | 7.75 (6.21) | 24 (0–24) | −1.84 (9.80) | 47 (−24–23) | |
| Left arm | Systolic | 61 | 10.26 (10.08) | 51 (0–51) | −5.41 (13.37) | 77 (−51–26) |
| vs | Diastolic | 7.13 (5.08) | 28 (0–28) | −3.59 (8.03) | 43 (−28–15) | |
| Left wrist | MAP | 6.80 (5.85) | 32 (0–32) | −4.02 (8.06) | 48 (−32–16) | |
| Left wrist | Systolic | 59 | 13.10 (10.19) | 57 (0–57) | 6.42 (15.38) | 81 (−24–57) |
| vs | Diastolic | 7.61 (5.80) | 31 (0–31) | 4.73 (8.36) | 45 (−14–31) | |
| Right arm | MAP | 7.93 (6.23) | 36 (0–36) | 5.25 (8.65) | 48 (−12–36) | |
| Left wrist | Systolic | 51 | 8.59 (7.66) | 34 (0–34) | 1.22 (1.50) | 49 (−15–34) |
| vs | Diastolic | 5.96 (5.69) | 23 (1–24) | 1.10 (8.21) | 45 (−24–21) | |
| Right wrist | MAP | 5.33 (4.80) | 19 (0–19) | 7.19 (0.00) | 35 (−19–16) | |
| Right wrist | Systolic | 65 | 9.03 (6.48) | 26 (0–26) | 2.72 (10.83) | 49 (−26–23) |
| vs | Diastolic | 7.06 (6.83) | 35 (0–35) | 2.57 (9.52) | 56 (−21–35) | |
| Right arm | MAP | 6.71 (5.82) | 31 (0–31) | 3.11 (8.35) | 50 (−19–31) | |