Table 4 Changes of alveolar surfactant protein A, B, C of serum

0.29[0.11–0.42]

0.38[0.22–0.52]^a

0.45[0.34–0.61]^ab

0.31[0.24–0.37]

0.38[0.31–0.47]^a

0.39[0.32–0.47]^ac

4.19[3.05–6.03]

5.85[5.20–6.86]^a

6.86[5.69–9.191]^a

4.28[4.01–4.87]

4.80[4.63–5.39]^ac

5.49[5.10–6.64]^abc

0.37[0.31–0.48]

0.66[0.45–0.80]^a

1.06[0.59–1.73]^ab

0.36[0.19–0.49]

0.47[0.32–0.61]^ac

0.76[0.28–1.05]^abc