Table 2.

Performance of Certain Signs and Symptoms in Detecting Patients With Pulmonary Tuberculosis

Sign(s)/Symptoms(s)	Sensitivity (%)	Specificity (%)	PPV (%)	NPV (%)
Fever	80	46	16	95
Cough	60	76	24	94
Weight loss	73	60	19	95
Night sweats	53	78	24	93
Any symptom	93a	41	17	98

^a1 patient with tuberculosis had no symptoms; they were Xpert MTB/RIF and sputum culture positive for M. tuberculosis.

NPV indicates negative predictive value; PPV, positive predictive value.