Table 1. Clinical characteristics of all patients according to electrographic abnormalities.
| Variable | Total (n=127) | Abnormal ECG (n=74) | Normal ECG (n=53) | p-value | |
|---|---|---|---|---|---|
| Age (yr) | 13.52±2.73 | 13.75±1.99 | 13.24±3.45 | 0.297 | |
| Female | 113 (89.0) | 69 (93.2) | 44 (83.0) | 0.064 | |
| BMI (kg/m2) | 15.05±3.69 | 14.35±2.78 | 16.06±4.55 | <0.001 | |
| BMI z-score | −2.89±2.59 | −3.46±2.64 | −2.06±2.28 | 0.002 | |
| Weight loss (kg) | 12.16±3.13 | 13.82±3.36 | 9.27±2.70 | 0.003 | |
| Combined complications | 108 (85.0) | 73 (98.6) | 35 (66.0) | 0.024 | |
| Psychologic | 27 (25.0) | 13 (17.8) | 14 (40.0) | 0.163 | |
| Endocrine | 61 (56.5) | 46 (63.0) | 15 (42.9) | <0.001 | |
| Pulmonary | 1 (0.9) | 1 (1.4) | 0 | 0.583 | |
| Hematologic | 19 (17.6) | 13 (17.8) | 6 (17.1) | 0.237 | |
| WBC (/mL) | 5,874.2±156.8 | 4,937.8±143.7 | 6,737.6±129.3 | 0.006 | |
| Hb (g/dL) | 12.85±1.56 | 12.83±1.60 | 12.88±1.53 | 0.880 | |
| Platelet (103/μL) | 234.58±67.59 | 215.38±56.18 | 256.41±78.85 | 0.002 | |
| AST (IU/L) | 50.70±5.46 | 57.29±5.43 | 36.99±5.29 | 0.436 | |
| ALT (IU/L) | 46.80±5.10 | 58.32±5.51 | 30.47±5.31 | 0.274 | |
| Albumin (g/dL) | 4.62±0.42 | 4.59±0.43 | 4.63±0.39 | 0.652 | |
| Na (mmol/L) | 141.42±4.84 | 143.08±3.50 | 139.09±2.45 | 0.385 | |
| K (mmol/L) | 4.53±0.81 | 4.75±0.98 | 4.13±0.42 | 0.378 | |
| Cl (mmol/L) | 102.62±4.08 | 102.16±3.36 | 103.36±2.95 | 0.091 | |
| Ca (mg/dL) | 9.35±1.49 | 9.65±1.58 | 9.30±1.36 | 0.213 | |
| P (mg/dL) | 3.92±0.66 | 3.75±0.59 | 4.14±0.68 | 0.001 | |
| Mg (mg/dL) | 2.31±0.21 | 2.33±0.23 | 2.25±0.16 | 0.323 | |
| Cholesterol (mg/dL) | 208.51±50.98 | 226.63±51.41 | 180.74±34.35 | <0.001 | |
Values are presented as mean±standard deviation or number (%).
ECG: electrocardiography, BMI: body mass index, WBC: white blood cell, Hb: hemoglobin, AST: aspartate aminotransferase, ALT: alanine aminotransferase.