First, the distributions of sex, age, size of residential area, and level of education for the study population reflected those observed in the general population, indicating that our findings may be applicable to the general population.
We hypothesize that these four categories of demographic and employment status may interact with other individual attributes such as gender, age, density of residential zone, holding a driving license and the individual role within the household structure.
We examined odds ratios (ORs; 95% CIs) for TTH diagnosed according to the alternative or standard criteria, using multivariate logistic regression analyses, with sociodemographic variables (gender, age, size of residential area and educational level) as covariates.
Six house lots were examined in each of three age-categories of residential neighborhoods (>80 years, 30 50 years, and <10 years), and these were compared to four forested plots in semi-natural urban parks and four in a natural forest.
The results show that the number of inheritors has positive relationships with age of the residential area and access to rail transport and downtown.
Subjects were stratified according to age, gender, size of residential area and educational level.
We found no significant differences in the distributions of age, gender, size of residential area, and educational level from those of the general population of Korea (Table 1).
The distribution of age, gender, size of residential area, education level and monthly income level in participants represented the Korean general population.
The distribution of age, gender, size of residential area, and educational level were not significantly different from those of the Korean general population (Table 1).
