Korean Journal of Geriatrics & Gerontology

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Table. 3.

Table. 3.

Factors associated with doctor-diagnosed osteoarthritis* in study population 1

Female Male
Simple logistic regression Multiple logistic regression Simple logistic regression Multiple logistic regression
Odds ratio (95% CI) P Adjusted odds ratio (95% CI) P Odds ratio (95% CI) P Adjusted odds ratio (95% CI) P
Atopic dermatitis <0.001 <0.001 0.026 0.037
No Reference - Reference - Reference - Reference -
Yes 2.82 (1.96-4.04) <0.001 2.95 (2.04-4.25) <0.001 2.39 (1.11-5.14) 0.026 2.27 (1.05-4.88) 0.037
Age (year) 1.14 (1.12-1.17) <0.001 1.12 (1.09-1.14) <0.001 1.12 (1.07-1.17) <0.001 1.10 (1.05-1.15) <0.001
Education <0.001 <0.001 <0.001 0.019
Elementary school or less Reference - Reference - Reference - Reference -
Middle school 0.69 (0.58-0.82) <0.001 0.83 (0.69-0.99) 0.038 0.94 (0.63-1.39) 0.754 1.07 (0.72-1.58) 0.748
High school 0.37 (0.32-0.44) <0.001 0.51 (0.43-0.61) <0.001 0.50 (0.34-0.73) <0.001 0.66 (0.45-0.98) 0.038
College or above 0.29 (0.23-0.36) <0.001 0.44 (0.35-0.55) <0.001 0.40 (0.27-0.60) <0.001 0.60 (0.37-0.95) 0.031
Household income <0.001 0.079 <0.001 <0.001
Low Reference - Reference - Reference - Reference -
Mid-low 0.69 (0.57-0.84) <0.001 0.80 (0.66-0.98) 0.034 0.53 (0.36-0.78) 0.001 0.54 (0.37-0.80) 0.002
Mid-high 0.62 (0.51-0.76) <0.001 0.83 (0.68-1.02) 0.082 0.37 (0.25-0.56) <0.001 0.40 (0.27-0.60) <0.001
High 0.46 (0.38-0.55) <0.001 0.77 (0.62-0.94) 0.013 0.36 (0.25-0.51) <0.001 0.45 (0.31-0.65) <0.001
Occupation <0.001 0.225 0.010 0.135
Group A Reference - Reference - Reference - Reference -
Group B 1.40 (1.21-1.61) <0.001 1.10 (0.94-1.28) 0.225 1.41 (1.09-1.84) 0.010 1.26 (0.93-1.69) 0.135
Smoking 0.576 0.880 0.720 0.966
No Reference - Reference - Reference - Reference -
Yes 1.09 (0.80-1.49) 0.576 1.03 (0.74-1.42) 0.880 1.05 (0.81-1.37) 0.720 0.99 (0.76-1.30) 0.966
Body mass index (kg/m2) 1.11 (1.09-1.13) <0.001 1.09 (1.07-1.11) <0.001 1.05 (1.00-1.10) 0.040 1.06 (1.02-1.11) 0.007

Abbreviations: CI, confidence interval. P values were calculated by generalized linear model for complex survey design. *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