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. 2011 Oct 1;85(4):724–731. doi: 10.4269/ajtmh.2011.10-0436

Table 1.

Severity scales used to categorize laboratory parameters and solicited reactions

Mild Moderate Severe
Pain Easily tolerated Sufficiently discomforting to interfere with normal behavior or activities Incapacitating, unable to perform usual activities, may have and/or require medical care or absenteeism
Erythema or edema < 2.5 cm ≥ 2.5 to < 5 cm ≥ 5 cm
Fever ≥ 37.5°C to 38°C oral ≥ 38.1°C to 39.0°C oral ≥ 39.1°C oral
Headache, malaise, myalgia, or asthenia Noticeable but does not interfere with daily activities Interferes with daily activities Prevents daily activities
Hb decrease (female; g/dL) ≥ 9.4 to ≤ 10.9 ≥ 8.4 to < 9.4 < 8.4
Hb decrease (male; g/dL) ≥ 11.3 to ≤ 12.8 ≥ 10.3 to < 11.3 < 10.3
WBC decrease (cells/mm3) < LLN to ≥ 3,000 < 3,000 to ≥ 2,000 < 2,000
Lymphocytes decrease (cells/mm3) < LLN to ≥ 700 < 700 to ≥ 500 < 500
Neutrophils decrease (cells/mm3) < LLN to ≥ 1,500 < 1,500 to ≥ 1,000 < 1,000
Platelets decrease (cells/mm3) < LLN to ≥ 100,000 < 100,000 to ≥ 75,000 < 75,000
ALT (increase by factor) > ULN to < 2.5 × ULN ≥ 2.5 to < 4.0 × ULN ≥ 4.0 × ULN
AST (increase by factor) > ULN to < 2.5 × ULN ≥ 2.5 to < 4.0 × ULN ≥ 4.0 × ULN
Serum creatinine (increase by factor) > ULN to < 1.5 × ULN ≥ 1.5 to < 2.0 × ULN ≥ 2.0 × ULN
CPK (increase by factor) > ULN to < 2.5 × ULN ≥ 2.5 to < 4.0 × ULN ≥ 4.0 × ULN
Bilirubin total (increase by factor) > ULN to < 1.5 × ULN ≥ 1.5 to < 2.0 × ULN ≥ 2.0 × ULN

ULN = upper limit of normal; LLN = lower limit of normal.