Table 6 Seasonal and regional comparison of S-IgA

Spring

89

647.177 (159.324)*

Summer

92

478.598 (138.558)*

Autumn

84

861.726 (75.147)*

Winter

96

513.573 (86.463)*

B: Regional comparison of S-IgA

Regions

N

Value of S-IgA

Guangdong

121

604.891 (171.961)^#

Hunan

120

720.917 (207.122)

Henan

120

697.73 (188.096)