Fig. 2

Annual percentage changes of PTB patients with DD in Shandong, China, 2005–2017. a) PTB with DD; b PTB with provider delay; c PTB with patient delay; d PTB with unfavorable outcome. Legend: PTB = Pulmonary tuberculosis; DD = Diagnostic delay; Unfavorable outcome is defined as “died”, “treatment failed” and “not evaluated”. *Indicate that the Annual Percent Change (APC) is significantly different from zero at the alpha = 0.05 level or the AAPC is significantly different from zero at the alpha = 0.05 level