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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)
  1. BUN*: Blood urea nitrogen. Cre†: Creatinine. T-bil‡ Total-bilirubin. AST§: Aspartate aminotransferase. ALT**: Alanine aminotransferase. LDH††: Lactate dehydrogenase. Glu‡‡: Glucose. HgbA1c§§: Hemoglobin A1c. WBC***: White Blood Cell. Hgb†††: Hemoglobin. Plt‡‡‡: Platelet.