title: Factors associated with pain and functional limitation in Japanese male patients with knee osteoarthritis.
abstract: The present study investigated factors associated with knee pain and functional limitation in knee OA patients. Subjects were 109 Japanese males who were newly diagnosed with knee OA at three university hospitals over a 1-year period. Knee pain and functional limitation in walking and climbing and/or descending stairs were selected as outcome measures. To assess factors associated with outcomes, we calculated odds ratios (OR) using logistic regression analysis. Taller height (> or =163 vs. <163 cm) showed a negative association with knee pain, "Pain on walking": OR = 0.08, 95% confidence interval = 0.01-0.79; "Pain on stairs": 0.25, 0.08-0.82. A significant characteristic related to a lesser degree of functional disability was alcohol consumption ("Waking distance": 0.34, 0.14-0.84; "Help on stairs": 0.21, 0.09-0.51). In the present study, knee pain was associated with shorter height in male Japanese patients with knee OA. Functional limitation was associated with no consumption of alcohol.
authors.affiliation: Department of Public Health, Osaka City University Faculty of Medicine, 1-4-3 Asahi-machi, Abeno-ku, Osaka, 545-8585, Japan. kyou@med.osaka-cu.ac.jp
authors.forename: Kyoko
authors.initials: K
authors.lastname: Kondo
authors.forename: Yoshio
authors.initials: Y
authors.lastname: Hirota
authors.forename: Hideya
authors.initials: H
authors.lastname: Kawamura
authors.forename: Hiromasa
authors.initials: H
authors.lastname: Miura
authors.forename: Shin-Ichiro
authors.initials: S
authors.lastname: Takasugi
authors.forename: Yoichi
authors.initials: Y
authors.lastname: Sugioka
authors.forename: Hajime
authors.initials: H
authors.lastname: Inoue
authors.forename: Masahiro
authors.initials: M
authors.lastname: Kurosaka
authors.forename: Yukihide
authors.initials: Y
authors.lastname: Iwamoto
mesh_terms: D000203:Activities of Daily Living; D000328:Adult; D000368:Aged; D004185:Disability Evaluation; D006785:Hospitals, University; D006801:Humans; D007564:Japan / Q000453:epidemiology; D007719:Knee Joint; D016015:Logistic Models; D008297:Male; D008875:Middle Aged; D016017:Odds Ratio; D020370:Osteoarthritis, Knee / Q000150:complications* / Q000453:epidemiology / Q000503:physiopathology*; D010146:Pain / Q000453:epidemiology / Q000209:etiology*; D010147:Pain Measurement; D012307:Risk Factors; D016138:Walking