710 - Prevalence and Associations of Foot Pain in a Population-Based Study

Catherine L. Hill1, Tiffany K. Gill2, Anne W. Taylor3, North West Adelaide Health Study Team. 1The Queen Elizabeth Hospital, Woodville, Australia; 2Population Research and Outcome Studies Unit, SA Department of Health, Adelaide, Australia; 3Population Research & Outcome Studies Unit, SA Department of Health, Adelaide, Australia
Presentation Number: 710

PURPOSE: The objective of this study is to determine the prevalence of foot pain, aching or stiffness and its associations among participants in a population-based cohort study.
METHODS: The North West Adelaide Health Study is a representative longitudinal cohort study of people aged 18 years and over living in the northwest region of Adelaide, South Australia. The original sample (n=4060) was randomly selected and recruited by telephone interview to participate in a clinic assessment. The second stage of data collection on this cohort was undertaken between mid 2004 and early 2006. Data were collected using a Computer Assisted Telephone Interviewing (CATI) survey, self completed questionnaires and a clinic visit. Overall, 3206 participants returned to the clinic during the second visit and as part of the assessment were asked to report whether they had pain, aching or stiffness on most days in either of their feet. If the response was affirmative, respondents were then asked to indicate on a foot diagram where the pain was and in which foot (left, right or both). In addition, demographic data, height, weight and quality of life (MOS SF-36) questionnaire were collected. Data was weighted to reflect the population of the north western Adelaide suburbs.
RESULTS: Overall, 17.4% (95% CI 16.2-18.8) of participants attending the clinic indicated that they had foot pain, aching or stiffness in either of their feet. Females (OR 1.3; 95% CI 1.1-1.6), those aged 50 years and over (OR 2.6; 95% CI 2.1-3.1) and those classified as obese (body mass index greater than or equal to 30kg/m2) (OR 1.9; 95% CI 1.5-2.3) were all significantly more likely to report foot pain, aching or stiffness. Among those who reported foot pain, aching or stiffness, the most commonly reported site was the forefoot area for both the right (24.5%; 95% CI 21.1-28.2) and the left (23.2%; 95% CI 19.9-26.8) feet. Respondents with foot pain, aching or stiffness also scored lower on all domains of the SF-36.
CONCLUSION: Foot pain is an under-recognised musculoskeletal condition, which affects nearly one in five of people in the community. Women, those who are classified as obese and those who are in the older age groups are more likely to report foot pain. Quality of life is also negatively impacted by the presence of foot problems. The presence of foot pain may impact on mobility and consequently the ability to undertake activities of daily living. This is one of the few large population-based studies to assess foot pain.

C.L. Hill, Health Services Research & Innovation Program (large projects), Department of Health, South Australia, 2 Research grants.