Table 1.

Demographic Characteristics of Study Participants^{^a}

↵^a IQR=interquartile ratio, BMI=body mass index, SEIFA=Australian Socio-Economic Indexes for Areas, OA=osteoarthritis.
^b Complete diagnosis data were not reported by 3 participants; total numbers for each characteristic may not equal n=917 or n=237 because of missing or unclear responses.
^c Mann-Whitney U test; χ² tests were used for all other analyses.