Performance Characteristics of Screened Symptom for Bacteriologically Positive TB, by Age Status, China, 2010.

PPV, positive predictive value; NPV, negative predictive value; AUC, area under the receiver operating characteristic curve
In analysis of cough and haemoptysis, the AUC for any duration of cough were significantly larger than for haemoptysis (P<0.01 for both subpopulations)
When analysis was conducted in participants under aged 65, the sensitivities of cough of any duration/ Cough or haemoptysis of any duration were significantly higher than that of suspected symptom defined by China NTP (P<0.01).
* Compared with participants aged under 65, P<0.05
** Compared with participants aged under 65, P<0.01
Performance Characteristics of Screened Symptom for Bacteriologically Positive TB, by Age Status, China, 2010.