Korean Journal of Geriatrics & Gerontology

Indexed in /covered by CAS, KoreaScience & DOI/Crossref:eISSN 2383-5699   pISSN 1229-6538

Table. 1.

Table. 1.

Demographic, socioeconomic, and clinical characteristics of study population 1

Characteristic Total Female Male
Doctor-diagnosed osteoarthritis* P Doctor-diagnosed osteoarthritis* P
No Yes No Yes
Total
N 16,412 7,961 1,566 6,556 329
Percent 100.0 84.2±0.4 15.8±0.4 95.4±0.3 4.6±0.3
Atopic dermatitis <0.001 0.022
No 98.3±0.1 98.7±0.1 96.4±0.5 98.4±0.2 96.4±1.3
Yes 1.7±0.1 1.3±0.1 3.6±0.5 1.6±0.2 3.6±1.3
Age (year)
Mean 54.36±0.03 54.18±0.04 55.25±0.08 <0.001 54.33±0.04 55.22±0.17 <0.001
Standard deviation 2.85±0.01 2.84±0.02 2.75±0.04 2.86±0.02 2.68±0.08
Education <0.001 <0.001
Elementary school or less 18.1±0.4 20.1±0.5 37.0±1.5 12.9±0.5 21.4±2.7
Middle school 18.4±0.4 19.2±0.5 24.4±1.3 16.2±0.5 25.3±2.9
High school 38.3±0.5 41.0±0.7 28.1±1.4 37.9±0.7 31.5±3.1
College or above 25.3±0.5 19.7±0.6 10.5±0.9 32.9±0.8 21.8±2.7
Household income <0.001 <0.001
Low 11.2±0.3 10.6±0.4 17.2±1.1 10.3±0.4 22.1±2.7
Mid-low 22.6±0.5 23.4±0.6 26.3±1.3 21.0±0.6 24.0±2.8
Mid-high 28.2±0.5 28.3±0.6 28.6±1.4 28.3±0.7 22.9±2.7
High 38.0±0.6 37.6±0.7 27.9±1.4 40.4±0.8 31.0±2.9
Occupation <0.001 0.010
Group A 65.6±0.5 78.1±0.6 71.9±1.4 54.2±0.8 45.5±3.3
Group B 34.4±0.5 21.9±0.6 28.1±1.4 45.8±0.8 54.5±3.3
Smoking 0.575 0.720
No 77.9±0.4 95.4±0.3 95.0±0.7 59.9±0.7 58.8±3.2
Yes 22.1±0.4 4.6±0.3 5.0±0.7 40.1±0.7 41.2±3.2
Body mass index (kg/m2)
Mean 24.23±0.03 23.81±0.05 25.03±0.10 <0.001 24.46±0.04 24.87±0.21 0.124
Standard deviation 3.13±0.03 3.23±0.04 3.45±0.08 2.91±0.04 3.12±0.19

Data are expressed as estimates±standard errors of means and standard deviations for continuous variables and as those of percentages for categorical variables. P values were calculated by design-based Wilcoxon rank-sum test for complex sample survey data for continuous variables, and by Pearson chi square test with Rao-Scott adjustment for categorical variables. *Doctor-diagnosed osteoarthritis is based on participants’ self-reports on the questionnaire. Occupation was classified as group A (managers, professionals, and related workers; clerks; service and sales workers; housewives, students, and the unemployed) and group B (skilled agricultural, forestry, and fishery workers; craft, equipment, and machine operating and assembling workers; elementary workers).

Korean J Geriatr Gerontol 2024;25:49-59 https://doi.org/10.15656/kjgg.2024.25.1.49
© 2024 Korean J Geriatr Gerontol