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Table 1 Characteristics of the study participants

From: Possible correlation between gut microbiota and immunity among healthy middle-aged and elderly people in southwest China

 

Middle-aged group (50–59 years)

Elderly group (≥ 60 years)

P value

Age

54.13 ± 3.32

64.70 ± 3.93

0.000

n

67

81

–

Gender (male/female)

27/40

41/40

–

BMI (kg/m2)

23.41 ± 2.79

23.36 ± 2.75

0.906

IgA (g/L)

2.38 ± 0.99

2.59 ± 0.96

0.198

IgG (g/L)

13.97 ± 2.38

14.03 ± 2.20

0.873

IgM (g/L)

1.25 ± 0.45

1.16 ± 0.49

0.271

  1. Values are presented as mean ± SD or frequencies, tested for differences between the groups using t test