Table 6.
Patient characteristics of 12 and 18 patients with an abnormal ultrasonography (US) result while using the wrist circumference dependent cut-off value but normal US results using the fixed and the flow-dependent cut-off value, respectively.
| Normal fixed | Others | p | Normal flow | Others | p | |
|---|---|---|---|---|---|---|
| Wrists (n) | 12 | 163 | 18 | 157 | ||
| Men/Women | 2/10 | 51/112 | 0.287a | 3/15 | 50/107 | 0.184a |
| Mean age (years, SD) | 54.5 (12.0) | 55.9 (15.4) | 0.760b | 52.8 (12.9) | 56.1 (15.4) | 0.374b |
| Left/right | 5/7 | 78/85 | 0.679a | 7/11 | 76/81 | 0.444a |
| Median height (cm, IQ range) | 163.0 (11.8) | 168.0 (10.3) | 0.268c | 164.0 (11.0) | 169.0 (10.8) | 0.061c |
| Median weight (kg, IQ range) | 69.5 (15.3) | 78.5 (20.0) | 0.013c | 72.0 (16.3) | 78.5 (20.3) | 0.071c |
| Median BMI (kg/m2, IQ range) | 25.4 (4.1) | 27.6 (6.0) | 0.030c | 26.8 (4.9) | 27.9 (5.9) | 0.267c |
| Median duration symptoms (months, IQ range) | 4.0 (7.0) | 6.0 (22.0) | 0.078c | 4.0 (10.0) | 6.0 (22.0) | 0.162c |
| Median wrist circumference (cm, IQ range) | 16.0 (0.7) | 17.0 (1.6) | <0.001c | 16.0 (0.7) | 17.0 (1.6) | <0.001c |
| Minimum-maximum range wrist circumference in cm | 14.0–16.7 | 14.0–20.0 | 14.4–18.0 | 14.0–22.0 | ||
| Median CSA (mm2, IQ range) | 10.3 (0.6) | 11.7 (4.4) | 0.281c | 11.0 (1.7) | 11.3 (4.8) | 0.618c |
a
Pearson Chi-Square test.
b
Unpaired t-test.
c
Mann–Whitney U-Test.