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[null,null,"Table 2 Prevalence of GBS colonization in different age groups"]
[null,"Age Groups (Years)","PCR                                                                            ",null,"Culture                                                                                       "]
[null,null,"n (Postive/Total)","Prevalence Rate (95% CI)","n (Postive/Total)","Prevalence Rate (95% CI)"]
[null,"≤24"," 148/1982","7.5(6.3-8.6)","54/1710","3.2(2.3-4.0)"]
[null,"25-29","377/3991","9.4(8.5-10.4)","124/3398","3.6(3.0-4.3)"]
[null,"30-34","189/2193","8.6(7.4-9.8)","49/1527","3.2(2.3-4.1)"]
[null,"35-39","64/730","8.8(6.7-10.8)","15/429","3.5(1.8-5.2)"]
[null,"≥40","11/126","8.7(3.7-13.7)","7/98","7.1(2.0-12.3)"]
[null,"P",0.161,null,0.28]
[null,"CI: confidence interval.\nCompare the age groups with the highest and lowest prevalence rate by PCR，P=0.011.\nCompare the age groups with the highest and lowest prevalence rate by Culture，P=0.034."]

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