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. 2013 Dec 17;13:596. doi: 10.1186/1471-2334-13-596

Table 3.

Comparison of the usage of antibiotics

 
Usage of antibiotics, (%)
χ 2
p value
  PCT group Control group    
Mild
16/47 (34.0)
37/50 (74.0)
15.61
<0.01
Moderate
21/54 (38.9)
36/52 (69.2)
9.81
<0.01
Severe
13/17 (76.5)
14/17 (82.4)
0.18
= 0.671
Critical
9/10 (90.0)
8/8 (100.0)
0.85
= 0.357
Total 59/128 (46.1) 95/127 (74.8) 21.97 <0.01