Table 1.
Characteristics of the clinical series at diagnosis.
| Total (n = 242) |
PR (n = 136) |
No PR (n = 106) |
P a | |
|---|---|---|---|---|
| Sex—n (%) | 0.35 | |||
| Girls | 115 (47.5) | 61 (44.8) | 54 (50.9) | |
| Boys | 127 (52.5) | 75 (55.1) | 52 (49.1) | |
| Age at Δ | ||||
| Mean—yearb | 8.8 ± 3.8 | 8.9 ± 3.8 | 8.9 ± 3.9 | 0.96 |
| Median—year | 9.5 | 9.4 | 9.6 | |
| Range—year | 0.9–16.4 | 1.4–16.4 | 0.9–16.4 | |
| Girls—yearb | 9.4 ± 3.4 | 9.3 ± 3.5 | 9.5 ± 3.4 | 0.75 |
| Boys—yearb | 8.5 ± 4.2 | 8.6 ± 4.1 | 8.2 ± 4.5 | 0.65 |
| 0–4 years—n (%) | 44 (18.2) | 21 (15.4) | 23 (21.7) | 0.50 |
| 5–9 years—n (%) | 93 (38.4) | 56 (41.2) | 37 (34.9) | |
| >10 years—n (%) | 103 (42.6) | 58 (42.6) | 45 (42.4) | |
| Height z-score at Δ | ||||
| Girls | 0.0 ± 1.2 | 0.0 ± 1.2 | 0.0 ± 1.1 | 0.72 |
| Boys | 0.0 ± 1.2 | 0.0 ± 1.0 | −0.2 ± 1.4 | 0.36 |
| BMI z-score at Δ | ||||
| Girls | 0.0 ± 1.1 | −0.1 ± 0.9 | +0.1 ± 1.2 | 0.34 |
| Boys | +0.3 ± 1.1 | +0.3 ± 1.0 | +0.3 ± 1.3 | 0.64 |
aCategorical variables were analyzed using chi-square test; continuous variables were analyzed using chi-square test with trend; ages at diagnosis were analyzed using unpaired t-test. bPlus-minus values are means ± SD. Δ: diagnosis.