TABLE 1.
Baseline characteristics between three groups.
| 4 ml group (n = 21) | 2 ml group (n = 21) | 1 ml group (n = 21) | p-Value a | |
|---|---|---|---|---|
| Age (SD) | 58.4 (9.6) | 55.2 (10.7) | 60.3 (8.6) | 0.231 |
| Female (%) | 95.2 | 81.0 | 81.0 | 0.311 |
| Hypertension (%) | 28.6 | 28.6 | 47.6 | 0.327 |
| DM (%) | 19.0 | 19.0 | 28.6 | 0.692 |
| Symptoms duration (SD) | 54.4 (72.3) | 20.6 (28.2) | 49.8 (60.9) | 0.134 |
| Phalen or tinel test positive (%) | 42.9 | 52.4 | 38.1 | 0.638 |
| Lesion side (left, %) | 45.0 | 40.0 | 61.9 | 0.349 |
| Primary outcome: VAS | 5.4 (1.5) | 5.9 (2.1) | 5.4 (1.8) | 0.797 |
| Secondary outcome | ||||
| BCTQ (SD) | 43.6 (10.4) | 40.8 (15.5) | 38.4 (14.6) | 0.902 |
| BCTQ-S (SD) | 24.9 (6.6) | 24.1 (9.3) | 23.7 (10.0) | 0.881 |
| BCTQ-F (SD) | 18.7 (5.5) | 16.7 (5.8) | 14.7 (5.2) | 0.134 |
| QuickDASH (SD) | 24.3 (6.8) | 23.1 (9.9) | 22.0 (8.3) | 0.666 |
| Electrodiagnosis (SD) | ||||
| Motor DL, ms | 5.6 (1.6) | 5.5 (1.5) | 5.4 (1.6) | 0.925 |
| SNCV Finger-wrist | 30.2 (7.2) | 31.5 (7.9) | 32.7 (6.6) | 0.432 |
| SNCV Palm-wrist | 25.1 (4.7) | 26.9 (5.8) | 26.4 (7.0) | 0.572 |
| CSA (SD), mm2 | 14.11 (2.60) | 14.8 (3.8) | 15.3 (4.4) | 0.355 |
D5W, 5% dextrose water; SD, standard deviation; DM, diabetes mellitus; VAS, visual analog scale; BCTQ, Boston Carpal Tunnel Syndrome Questionnaire (F, function; S, symptom severity); DL, distal latency of median nerve; SNCV, sensory nerve conduction velocity (finger-wrist, finger to wrist segment; palm-wrist, palm to wrist segment); CSA, cross-sectional area of median nerve.
a
Between-group comparison: one-way ANOVA for continuous data and chi-square test for categorical data.