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. 2008 Dec 19;3(12):e3985. doi: 10.1371/journal.pone.0003985

Table 2. Mean scores in interpersonal trust by sociodemographics.

Sociodemographic Subcategory Trust in people Trust in human fairness Trust in human nature
Mean SD Mean SD Mean SD
Gender men 5.3 2.1 5.7 1.7 4.8 1.8
women 5.6 2.1 6.1 1.8 5.3 1.9
t-statistic, P-value 2.206 0.028 3.675 <0.001 3.931 <0.001
Age 20–29 5.2 2.2 5.7 1.8 4.4* 1.7
30–39 5.2 2.1 5.7 1.6 4.9 1.8
40–49 5.5 1.9 5.7 1.5 5.1 1.6
50–59 5.5 2.3 6.1 1.9 5.2 2.1
60–69 5.6 2.2 6.3* 1.9 5.7* 1.9
F-statistic, P-value 1.681 0.152 4.411 0.002 11.825 <0.001
Area size of residence 12 major cities 5.3 2.1 6.0 1.7 5.0 1.8
Cities with population > = 100k 5.6 2.2 6.0 1.8 5.2 1.9
Cities with population <100k 5.4 2.1 5.7 1.7 4.9 1.9
Rural areas 5.2 2.0 5.9 1.8 5.0 1.8
F-statistic, P-value 1.381 0.247 0.839 0.473 1.707 0.164
Annual household income, JY <5 million 5.1 2.1 5.7 2.0 5.0 2.0
> = 5 million & <8 million 5.5 2.2 5.9 1.6 5.1 1.8
> = 8 million 6.1* 1.9 6.3* 1.5 5.3 1.6
F-statistic, P-value 11.948 <0.001 6.620 0.001 1.982 0.138
Educational attainment Junior high school or lower 5.0 2.2 5.9 1.9 5.2 2.2
High school 5.4 2.1 5.9 1.9 5.1 1.8
College or higher 5.5 2.1 5.9 1.6 5.0 1.8
F-statistic, P-value 1.978 0.139 0.080 0.923 0.283 0.754
Occupation Self-employed 5.4 2.4 6.0 1.9 5.2 1.7
Homemaker 5.5 2.3 6.2 1.8 5.5* 1.9
Employed 5.4 2.0 5.8 1.7 4.9* 1.9
Unemployed 5.2 2.2 5.7 2.0 4.9 1.8
F-statistic, P-value 0.337 0.798 1.936 0.122 3.478 0.016
*

indicates a significant difference based on Tukey pairwise comparisons.