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Table 1 Baseline characteristics of the two groups

From: Procalcitonin guided antibiotic therapy of acute exacerbations of asthma: a randomized controlled trial

Characteristic

PCT group (n = 128)

Control group (n = 127)

Median age, yr

54±14

55±15

Mean Asthma history, yr

25±17

27±18

Gender, no. (%)

  

  Male

64 (50.0)

59 (46.5)

  Female

64 (50.0)

68 (53.5)

HR, times/min

95±24

97±26

RR, times/min

24±12

25±10

pH

7.39±0.06

7.38±0.05

SaO2, %*

94±5

95±3

PaO2, mmHg*

79±19

75±17

PaCO2, mmHg*

44±12

42±10

WBC, ×109/L

12.1±4.6

11.9±5.2

hsCRP, mg/L

8.2 (4.5 ~ 15.7)

6.9 (5.1 ~ 17.6)

PCT, ng/ml

0.137 (0.068 ~ 0.252)

0.119 (0.057 ~ 0.267)

IL-6, pg/ml

14.5 (8.3 ~ 26.1)

17.3 (6.7 ~ 31.4)

TNF-α, pg/ml

27.5 (13.4 ~ 49.5)

32.4 (15.7 ~ 52.1)

Severity of asthma

  

  Mild

47 (36.7)

50 (39.4)

  Moderate

54 (42.2)

52 (40.9)

  Severe

17 (13.3)

17 (13.4)

  Critical

10 (7.8)

8 (6.3)

FEV1, %

57.8±17.2

54.3±16.7

Mean symptom score

4.42±0.85

4.35±0.79

  1. Note: Data are presented as No. (%), M (QL ~ QU) or mean ± SD; * = the value after oxygen.