Objective To evaluate the value of tuberculosis antibody and PPD test.
目的对血结核抗体和PPD试验用于肺结核诊断的价值进行评估。
The positive rate of PPD test was no significant difference among each year.
各年度结核菌素阳性率差异无显著性；
PPD test showed that intense positive reaction was 42% in the benign cases, but negative response was 48% in the malignant cases.
精制蛋白衍化物（PPD）皮试显示：良性病变强阳性反应占42％，恶性病变阴性反应占48％。
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