Table 1—

Comparisons of initial clinical, radiological and laboratory features between severe acute respiratory syndrome (SARS) patients with spontaneous pneumomediastinum (SP) and ventilator-associated barotraumas (VAB)

ParametersSPVABp-value
Subjects n1311
Fever13 (100)11 (100)1.0
Chills8 (61.5)6 (54.5)1.0
Rigors6 (46.2)6 (54.5)1.0
Myalgia8 (61.5)10 (90.9)0.166
Cough8 (61.5)7 (63.6)1.0
Dyspnoea9 (69.2)5 (45.8)0.408
Diarrhoea7 (53.8)7 (63.6)0.697
Ever-smoker0 (0)0 (0)1.0
Normal chest radiograph2 (15.4)4 (36.4)0.357
Multilobar involvement3 (23.1)1 (9.1)0.596
Haemoglobin g·dL−113.5 (12.7–14.9)14.1 (13.5–14.7)0.531
Lymphocyte ×109·L−10.8 (0.6–1.4)0.7 (0.6–0.8)0.424
Platelet ×109·L−1191 (144–232)162 (146–197)0.569
Initial LDH IU·L−1412 (357–505)344 (293–523)0.207
  • Data are presented as n (%) or median (interquartile range) unless otherwise stated

  • SP: spontaneous pneumomediastinum

  • VAB: ventilator-associated barotraumas