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. 2020 May 14;20:690. doi: 10.1186/s12889-020-08804-4

Table 2.

Summary statistics by level of health literacy on CDP

Sample Health literacy p-value
Adequate Inadequate
Number of observations n = 2114 n = 6080
Variables mean mean
Key variables of interest
 Any chronic diseases (=1) 0.225 0.273 0.000
 Hypertension (=1) 0.164 0.198 0.001
 Heart problems (=1) 0.021 0.019 0.437
 Cerebrovascular disease (=1) 0.005 0.007 0.291
 Diabetes (=1) 0.039 0.052 0.018
 Cancer (=1) 0.007 0.008 0.610
 Other chronic diseases (=1) 0.031 0.038 0.132
 Adequate health literacy on CDPa (=1) 1.000 0.000 /
Demographics
 Region (=1 urban) 0.541 0.470 0.000
 Has local hukou (=1) 0.939 0.924 0.023
 Gender (=1 male) 0.484 0.490 0.659
 Age in years 45.236 50.208 0.000
 1:Aged 15–44 0.457 0.301 0.000
 2:Aged 45–59 0.360 0.400 0.002
 3:Aged 60–69 0.182 0.299 0.000
 Household size 2.934 2.787 0.000
 Annual income (1000 CNY) 106.421 79.643 0.000
Education level
 1:Illiterate 0.053 0.098 0.000
 2:Elementary 0.177 0.308 0.000
 3:Middle school 0.257 0.315 0.000
 4:High school 0.206 0.155 0.000
 5:College or above 0.307 0.125 0.000
Occupation
 1:Working in public sectors 0.153 0.072 0.000
 2:Farmers 0.244 0.304 0.000
 3:Manual labourers 0.172 0.188 0.090
 4:Working in private sectors 0.220 0.156 0.000
 5:Other 0.211 0.280 0.000

Note: The p-value is calculated using either the t-test (if continuous) or the proportion test (if binary); a pre-test of equality of variance is also conducted. a CDP refers to chronic disease prevention