Host Genetic and Environmental Factors Shape the Composition and Function of Gut Microbiota in Populations Living at High Altitude

Table 1

The baseline characteristics of all participants.

Characteristics	Native Tibetans	Hans	value
Subjects ()	15	12	—
Gender (M/F) ( (%))	8/7 (53.3%)	6/6 (50.0%)	0.86
Mean age (range) (years)	(32-44)	(33-43)	0.38
BMI (range)	(28-34)	(29-36)	0.96
Dietary habits (Tibetans’ traditional habit/Hans’ traditional habit)	15/0	0/12	<0.01
Drinking (no/yes)	9/6	8/4	0.72
Smoking (no/yes)	8/7 (53.3%)	6/6 (50.0%)	0.86
Frequency of food (per day)	3 times	3 times	—
Sleep habits	Day	Day	—
Mental stress	Social	Social	—
Diet and sleep timings	Regular	Regular	—

BMI: body mass index; Tibetans’ traditional habit: meat, Zanba (a roasted barley flour), and dairy products formed their major diet; Hans’ traditional habit: wheat, rice, and more vegetables/fruits formed their major diet.