Table 5.
Average Age of Participating and Refusing Patients
Site
Mean Age of Participating Patients (Years)
Estimated Mean Age of Patients Who Refused to Participate (Years)
Quebec
48.05 ± 18.4
48.65 ± 20.6
Ontario
55.34 ± 15.56
50.56 ± 17.8
Total
50.7 ± 17.8
49.6 ± 19.3