Table 2 Demographic and Clinical Characteristics
From: Risk factors for adverse reactions from contrast agents for computed tomography
Derivation group (n = 20,000) | Validation group (n = 16,472) | |||
|---|---|---|---|---|
Acute adverse reaction, n (%) | 409 | (2.0) | 347 | (2.1) |
Severe reaction, n (%) | 9 | (0.1) | 14 | (0.1) |
Male, n (%) | 10396 | (52.0) | 8506 | (51.6) |
Age, mean (SD), year | 58.3 | (16.6) | 58.3 | (16.7) |
Contrast agent concentration, mean (SD),% | 65.2 | (6.4) | 65.2 | (6.2) |
Total contrast agent dose, mean (SD), g | 62.5 | (10.4) | 62.5 | (9.1) |
Allergic History | ||||
For radio contrast, n (%) | 464 | (2.3) | 389 | (2.4) |
For antibiotics, n (%) | 589 | (2.9) | 498 | (3.0) |
For any drugs, n (%) | 1544 | (7.7) | 1354 | (8.2) |
Medical history | ||||
Atopic dermatitis, n (%) | 256 | (1.3) | 212 | (1.3) |
Asthma, n (%) | 148 | (0.7) | 128 | (0.8) |
Urticaria, n (%) | 1159 | (5.8) | 859 | (5.5) |
Diabetes, n (%) | 3929 | (19.6) | 3209 | (19.5) |
Hypertension, n (%) | 5712 | (28.6) | 4749 | (28.7) |
Dyslipidemia, n (%) | 3242 | (16.2) | 2730 | (16.6) |
Laboratory values | ||||
BUN*, mean (SD), mg/dl | 15.5 | (8.4) | 15.5 | (8.5) |
Cre† , mean (SD), mg/dl | 0.9 | (0.9) | 0.8 | (0.8) |
Na, mean (SD), mEq/L | 140.0 | (3.3) | 140.0 | (3.3) |
K, mean (SD), mEq/L | 4.1 | (0.5) | 4.1 | (0.5) |
Cl, mean (SD), mEq/L | 104.9 | (3.7) | 104.9 | (3.7) |
T-bil‡, mean (SD), mg/dl | 0.8 | (1.0) | 0.8 | (1.3) |
AST§, mean (SD), IU/L | 40.7 | (264.6) | 39.4 | (140.0) |
ALT**, mean (SD), IU/L | 35.2 | (137.2) | 34.5 | (109.1) |
LDH††, mean (SD), IU/L | 233.2 | (475.1) | 232.4 | (337.7) |
Glu‡‡, mean (SD), mg/dl | 120.9 | (47.6) | 120.5 | (48.2) |
HgbA1c§§, mean (SD),% | 5.6 | (1.2) | 5.6 | (1.2) |
WBC***, mean (SD), ×103 /μl | 7.3 | (5.0) | 7.3 | (4.7) |
Hgb†††, mean (SD), g/dl | 12.9 | (2.1) | 12.9 | (2.1) |
Plt‡‡‡, mead (SD), ×103 /μl | 235.5 | (86.4) | 235.5 | (84.2) |