The Association between Physical Activity and Cognitive Function: Data from the China Health and Nutrition Survey

Table 1

The characteristics of the participates.

Variable	Description
Age
Gender
Male	943 (62.29)
Female	571 (37.71)
Ethnicity
Han	1427 (94.25)
Others	87 (5.75)
Stratum,
City	608 (40.16)
Suburban	223 (14.73)
Town or county capital city	256 (16.91)
Rural village	427 (28.20)
Hypertension,
No	16 (8.56)
Yes	171 (91.44)
Diabetes
No	671 (90.55)
Yes	70 (9.45)
Household income (yuan)	20000 (5000, 60000)
SBP
DBP
BMI
Marital status
Married	1387 (91.61)
Widowed	109 (7.20)
Separated	1 (0.07)
Never married	3 (0.20)
Divorced	14 (0.92)
Education
Middle school or below	861 (56.87)
High school	490 (32.36)
University and above	163 (10.77)
Sleep time
Smoke
No	1145 (75.63)
Yes	369 (24.37)
Drink
No	1079 (71.27)
Yes	435 (28.73)
Drink frequency
No drink	1079 (71.27)
Less than once a week	121 (7.99)
1-2 times a week	87 (5.75)
3-4 times a week	48 (3.17)
Every day	179 (11.82)
Memory status
Good	708 (46.76)
OK	616 (40.69)
Bad	190 (12.55)
Memory changes
Improved	30 (1.98)
Stayed the same	924 (61.03)
Deteriorated	560 (36.99)
Physical activities
Domestic score
Occupational score
Transportation score
Leisure time score

SBP: systolic blood pressure; DBP: diastolic blood pressure; BMI: body mass index. The minimum domestic score was 0 and the maximum domestic score was 182.70. The minimum occupational score was 0 and the maximum occupational score was 280.00. The minimum transportation score was 0 and the maximum occupational score was 210.00. The minimum leisure time score was 0 and the maximum occupational score was 270.00.