Ingham, Sarah L., Zhang, Weiya, Doherty, Sally A., McWilliams, Daniel F., Muir, Kenneth (Kenneth R.) and Doherty, Michael, 1951-. (2011) Incident knee pain in the Nottingham community : a 12-year retrospective cohort study. Osteoarthritis and Cartilage, Vol.19 (No.7). pp. 847-852. ISSN 1063-4584

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Abstract

Objectives: To determine the community incidence of knee pain and associated risk factors over a 12-year period in people over the age of 40 years.

Method: A cohort study of knee pain was undertaken in 2156 people from four general practices in North Nottinghamshire, UK. Knee pain was defined as 'pain around the knee for most days of at least a month'. Cumulative incidence over 12 years and person-year incidence rate of knee pain were estimated. Survival analysis was undertaken for time to the onset of knee pain. Hazard ratio (HR) and 95% confidence interval (CI) were estimated for relative risk between exposure and non-exposure. Cox regression model was used to adjust for confounding factors.

Results: The 12-year cumulative incidence of knee pain was 34.4% (32% for men and 35% for women), corresponding to an average incidence rate of 32 (31 for men and 34 for women)/1000 person-years. Incident knee pain was associated with female gender (HR 1.27, 95% CI 1.08, 1.49), obesity (1.80: 95% CI 1.37, 2.38), varus (1.68, 95% CI 1.15, 2.47) and valgus (1.83, 95% CI 1.05, 3.20) mal-alignment, and knee injury (2.37, 95% CI 2.98, 2.85).

Conclusions: For people over age 40, one in three will develop knee pain within 12 years. On average, the risk of knee pain was 32/1000 person-years. This risk is associated with a variety of constitutional and environmental biomechanical insults to the knee. Some of these could be modified to possibly reduce the incidence of the condition.

Item Type:	Journal Article
Subjects:	R Medicine > RA Public aspects of medicine > RA0421 Public health. Hygiene. Preventive Medicine R Medicine > RC Internal medicine
Divisions:	Faculty of Medicine > Warwick Medical School
Library of Congress Subject Headings (LCSH):	Knee -- Wounds and injuries -- England -- Nottingham, Knee -- Diseases -- England -- Nottingham, Knee -- Abnormalities -- England -- Nottingham, Pain, Epidemiology -- England -- Nottingham
Journal or Publication Title:	Osteoarthritis and Cartilage
Publisher:	Elsevier Science BV
ISSN:	1063-4584
Official Date:	July 2011
Volume:	Vol.19
Number:	No.7
Page Range:	pp. 847-852
Identification Number:	10.1016/j.joca.2011.03.012
Status:	Peer Reviewed
Publication Status:	Published
URI:	http://wrap.warwick.ac.uk/id/eprint/38580

Data sourced from Thomson Reuters' Web of Knowledge

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