Table 3.

The IgG levels in all groups (g/L, n=20).

	Upon admission	6-month follow-up	12-month follow-up
Group A	27.73±1.25	22.05±1.31*	18.76±1.21*
Group B	27.43±1.12	19.79±1.11#*	17.61±1.41#*
Group C	27.12±1.32	17.34±1.13#*	15.17±1.24#*
Group D	27.38±1.21	24.27±1.11#*	19.93±1.18#*

Compared with Group A,

^#P<0.05; compared with that upon admission,

^*P<0.05.