Median and IQR values for QFT1 and difference in Interferon-gamma levels (IFN-g at QFT2– IFNg at QFT1 (IU/ml) and stratified by 1 year QFT pattern.

*p value for two sample Mann-Whitney rank sum test comparing median IFN-gamma value at QFT 1 between stable negatives and converters.**p value for two sample Mann-Whitney rank sum test comparing median IFN-gamma value at QFT 1 between stable positives and reverters.

* 针对稳定阴性组与阳转组在首次QFT（QuantiFERON-TB）检测中干扰素-γ（IFN-gamma）中位数的差异，采用两样本曼-惠特尼秩和检验所得的p值。
* 针对稳定阳性组与阴转组在首次QFT（QuantiFERON-TB）检测中干扰素-γ（IFN-gamma）中位数的差异，采用两样本曼-惠特尼秩和检验所得的p值。