Table 1.
Clinical features of gouty attack in GSD Ia patients
| Variable | n = 31 |
|---|---|
| Male | 20 (64.5) |
| Gout symptom onset age, years | 18 (10.29) |
| Gout symptom duration, years | 5.0 ± 4.4 |
| Site of first gouty attack | |
| Ankle | 14 (45.2) |
| MTP1 joint | 12 (38.7) |
| Knee | 2 (6.5) |
| Elbows | 1 (3.2) |
| Second MCP joint | 1 (3.2) |
| PIP joint of the fifth finger | 1 (3.2) |
| Involved joints at gouty attack | |
| Ankle joint | 20 (64.5) |
| First MTP joint | 14 (45.2) |
| Knee | 13 (41.9) |
| MCP joint | 8 (25.8) |
| Wrist | 7 (22.6) |
| PIP joint | 6 (19.4) |
| Elbows | 3 (9.7) |
| PIP joint of the toe | 2 (6.5) |
| Shoulder joint | 1 (3.2) |
| Upper extremity involved | 15 (48.4) |
| Number of involved joints | |
| 1 | 7 (22.6) |
| 2 | 4 (12.9) |
| 3 | 5 (16.1) |
| 4 | 4 (12.9) |
| ≥ 5 | 11 (35.5) |
| Presence of tophi | 15 (48.4) |
| Presence of renal calculi | 15 (48.4) |
Values are expressed as numbers (%), median (range), or mean ± standard deviation
Abbreviation: GSD Ia glycogen storage disease type Ia, MTP1 first metatarsophalangeal, MCP metacarpophalangeal, PIP proximal interphalangeal, eGFR estimated glomerular filtration rate, BMI body mass index