Fig. 4

Survival analysis of TBAL timing on the length of hospital stay. (a). In 24 h vs. out of 24 h:log-rank P = 0.0057, 95% CI: 0.5229–1.132. (b). In 72 h vs. out of 72 h:log-rank P < 0.0001, 95% CI: 1.522–3.123. (c). Once vs. more than once:log-rank P < 0.0001, 95% CI: 1.698–3.472. (d). SMPP vs. NSMPP:log-rank P = 0.033, 95% CI: 0.4529–0.9535

* SMPP: Severe mycoplasma pneumoniae pneumonia, NSMPP: non-severe mycoplasma pneumoniae pneumonia