TABLE 1.
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Distribution of PCT, Sputum Culture, and Numbers of Bacteria in Different Groups of Patients

CasesMean PCT (SD) (ng/mL)PCT range (ng/mL)Bacteria, No.
Culture +Normal flora
01+2+3+4+01+2+3+4+
Viral LRTI (n = 38)0.06 (0.02)0.02–0.15130008141110
Bacterial LRTI (n = 87)0.44 (0.75)0.05–5.10002553500130
Mycoplasma LRTI (n = 102)0.25 (0.36)0.03–1.742300051251560
Viral + bacterial LRTI (n = 3)0.39 (0.55)0.04–1.030012000000
Viral + mycoplasma LRTI (n=10)1.18 (2.06)0.06–5.150000064000
Bacterial + mycoplasma LRTI (n = 9)0.78 (1.73)0.06–5.360026000010
CasesMean PCT (SD) (ng/mL)PCT range (ng/mL)Bacteria, No.
Culture +Normal flora
01+2+3+4+01+2+3+4+
Viral LRTI (n = 38)0.06 (0.02)0.02–0.15130008141110
Bacterial LRTI (n = 87)0.44 (0.75)0.05–5.10002553500130
Mycoplasma LRTI (n = 102)0.25 (0.36)0.03–1.742300051251560
Viral + bacterial LRTI (n = 3)0.39 (0.55)0.04–1.030012000000
Viral + mycoplasma LRTI (n=10)1.18 (2.06)0.06–5.150000064000
Bacterial + mycoplasma LRTI (n = 9)0.78 (1.73)0.06–5.360026000010

LRTI, lower respiratory tract infection; PCT, procalcitonin; +, positive.

TABLE 1.
Open in new tab

Distribution of PCT, Sputum Culture, and Numbers of Bacteria in Different Groups of Patients

CasesMean PCT (SD) (ng/mL)PCT range (ng/mL)Bacteria, No.
Culture +Normal flora
01+2+3+4+01+2+3+4+
Viral LRTI (n = 38)0.06 (0.02)0.02–0.15130008141110
Bacterial LRTI (n = 87)0.44 (0.75)0.05–5.10002553500130
Mycoplasma LRTI (n = 102)0.25 (0.36)0.03–1.742300051251560
Viral + bacterial LRTI (n = 3)0.39 (0.55)0.04–1.030012000000
Viral + mycoplasma LRTI (n=10)1.18 (2.06)0.06–5.150000064000
Bacterial + mycoplasma LRTI (n = 9)0.78 (1.73)0.06–5.360026000010
CasesMean PCT (SD) (ng/mL)PCT range (ng/mL)Bacteria, No.
Culture +Normal flora
01+2+3+4+01+2+3+4+
Viral LRTI (n = 38)0.06 (0.02)0.02–0.15130008141110
Bacterial LRTI (n = 87)0.44 (0.75)0.05–5.10002553500130
Mycoplasma LRTI (n = 102)0.25 (0.36)0.03–1.742300051251560
Viral + bacterial LRTI (n = 3)0.39 (0.55)0.04–1.030012000000
Viral + mycoplasma LRTI (n=10)1.18 (2.06)0.06–5.150000064000
Bacterial + mycoplasma LRTI (n = 9)0.78 (1.73)0.06–5.360026000010

LRTI, lower respiratory tract infection; PCT, procalcitonin; +, positive.

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