Table 3
Mean age at symptom onset and diagnosis, by site of joint pain, household population aged 20 or older diagnosed with osteoarthritis, Canada excluding territories, 2009

Table 3
Mean age at symptom onset and diagnosis, by site of joint pain, household population aged 20 or older diagnosed with osteoarthritis, Canada excluding territories, 2009
Table summary
This table displays the results of Mean age at symptom onset and diagnosis. The information is grouped by Site of joint pain (appearing as row headers), Age first diagnosed, Age at symptom onset, Difference, Mean and 95% confidence interval (appearing as column headers).
Site of joint pain Age first diagnosed Age at symptom onset Difference
Mean 95% confidence interval Mean 95% confidence interval Mean 95% confidence interval
from to from to from to
Any joint 50.4 49.4 51.4 47.6 46.5 48.7 2.4 1.7 3.1
Hip and knee 47.6 45.9 49.3 45.2 43.3 47.0 2.3Note E: Use with caution 1.3 3.3
Hip 50.8 48.6 53.0 48.9 46.6 51.1 Note F: too unreliable to be published Note F: too unreliable to be published Note F: too unreliable to be published
Knee 53.4 51.5 55.2 49.4 47.5 51.4 3.4Note E: Use with caution 1.9 5.0
E use with caution
F too unreliable to be published
Notes: Estimates of mean age include all individuals, regardless of sequence of events (symptoms preceded, occurred in same year or followed diagnosis. Site of pain asked only of those who experienced pain in last month.
Source: 2009 Survey on Living with Chronic Diseases in Canada - Arthritis.
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