Table 1. Baseline clinical characteristics of the patient cohorts.
| Variable | Overall (n=74) | sTGR cohort (n=48) | dTGR cohort (n=26) | P value | |||
|---|---|---|---|---|---|---|---|
| DFA group (n=24) | Non-DFA group (n=24) | Among groups | DFA vs. Non-DFA | DFA vs. dTGR | |||
| Age (years) | 8.14±1.30 | 7.92±1.28 | 8.21±1.18 | 8.27±1.43 | 0.602 | 0.441 | 0.343 |
| Sex | 0.366 | 0.282 | 0.405 | ||||
| Male | 39 (52.7) | 13 (54.2) | 10 (41.7) | 16 (61.5) | |||
| Female | 35 (47.3) | 11 (45.8) | 14 (58.3) | 10 (38.5) | |||
| BMI, kg/m2 | 17.41±2.57 | 16.69±3.53 | 16.92±3.18 | 18.52±2.77 | 0.208 | 0.607 | 0.135 |
| Etiology | 0.732 | 0.463 | 0.959 | ||||
| Idiopathic | 45 (60.8) | 14 (58.3) | 15 (62.5) | 16 (61.5) | |||
| Congenital | 16 (21.6) | 5 (20.8) | 7 (29.2) | 4 (15.4) | |||
| Neuromuscular | 9 (12.2) | 3 (12.5) | 2 (8.3) | 4 (15.4) | |||
| Syndromic | 4 (5.4) | 2 (8.3) | 0 (0.0) | 2 (7.7) | |||
| Major curve | 0.960 | 0.836 | 0.992 | ||||
| Thoracic | 61 (82.4) | 20 (83.3) | 19 (79.2) | 22 (84.6) | |||
| Thoracolumbar | 9 (12.2) | 3 (12.5) | 3 (12.5) | 3 (11.5) | |||
| Lumbar | 4 (5.4) | 1 (4.2) | 2 (8.3) | 1 (3.8) | |||
| Follow-up (months) | 27.17±3.22 | 26.78±2.88 | 28.18±3.01 | 26.58±3.57 | 0.357 | 0.097 | 0.752 |
| No. of lengthening procedures | 2.45±0.81 | 2.33±0.76 | 2.46±0.83 | 2.54±0.86 | 0.676 | 0.599 | 0.731 |
Data are presented as number (%) or mean ± standard deviation. DFA, distal foundation augmentation; BMI, body mass index; sTGR, single traditional growing rod; dTGR, dual traditional growing rod.