Table 3.
Clinical characteristics of false negative and true positive patients in BIPSS
| False negative (n = 5) | True positive (n = 11) | p-Value | |
|---|---|---|---|
| Age (years) | 16.1 ± 2.0 | 15.2 ± 2.8 | 0.532 |
| Duration of disease (years) | 3.0 (1.5, 3.5) | 2.0 (0.9, 3.0) | 0.377 |
| Height (cm) | 152.0 ± 12.0 | 152.7 ± 15.0 | 0.930 |
| Height SDS | −1.4 ± 1.9 | −1.2 ± 2.2 | 0.920 |
| Weight (kg) | 61.1 ± 3.9 | 66.8 ± 20.7 | 0.560 |
| Weight SDS | 1.2 ± 0.5 | 1.3 ± 1.3 | 0.780 |
| BMI | 26.7 ± 3.6 | 28.1 ± 4.5 | 0.564 |
| ACTH (ng/L) | 48.1 ± 14.0 | 60.5 ± 26.0 | 0.339 |
| 24 h UFC (μg) | 488.6 (373.0, 501.5) | 562.4 (191.9, 897.2) | 0.827 |
| ACTH at dominant IPS (ng/L) | 52.1 (42.5, 57.1) | 745.0 (522.0, 1237.5) | 0.001* |
| Tumor size (mm) | 4.8 ± 0.5 | 7.3 ± 4.3 | 0.267 |
| Sex | 0.588 | ||
| Male | 1 | 5 | |
| Female | 4 | 6 | |
| Duration of disease | 0.245 | ||
| ≤1 year | 0 | 4 | |
| >1 year | 5 | 7 | |
| Sampling lateralization before stimulation | 0.036* | ||
| Presence | 1 | 9 | |
| Absence | 4 | 2 | |
| Actual position | 0.093 | ||
| Left | 0 | 6 | |
| Others | 5 | 5 | |
| Actual position | 0.245 | ||
| Right | 3 | 2 | |
| Others | 2 | 9 |
* p<0.05