Respondents (n ​= ​554)	Loss to follow-up (n ​= ​420)	P-value
Characteristics	Percent (95% Confidence Interval)
Location
Metro	52.2% (48.0–56.3)	41.0% (36.3–45.7)	<0.001
Metro-influenced	18.1% (15.1–21.5)	24.3 (20.4–28.6)
Urban	10.8% (8.5–13.7)	14.1% (11.0–17.7)
Rural	19.0% (15.9–22.4)	20.7% (17.1–24.9)
Program Payor
Private	63.7% (59.6–67.6)	58.6% (53.8–63.2)	0.13
Publicly funded by Alberta Health Services	25.1% (21.7–28.9)	31.0% (26.7–35.6)
Publicly funded by Primary Care Network	11.2% (8.8–14.1)	10.5% (7.9–13.8)
Affected Joint
Hip	30.9% 27.2–34.6)	30.2% (26.0–34.8)	0.83
Knee	69.1% (65.2–72.9)	69.8% (65.2–74.0)
Sex
Female	77.0% (73.3–80.4)	76.0% (71.6–79.8)	0.69
Male	23.0% (19.6–26.7)	24.1% (20.2–28.4)
Marital Status
Married, common-law	78.2% (74.5–81.4)	73.3% (68.8–77.3)	0.08
Single, separated, divorced, widowed	21.8% (18.6–25.5)	26.7% (22.7–31.2)
Education
High school diploma or less	17.5% (14.4–21.0)	23.9% (19.9–28.4)	0.03
College or trade school	33.5% (29.5–37.7)	34.1% (29.6–38.9)
University degree	49.0% (44.7–53.3)	42.0% (37.2–46.9)
Employment Status
Not currently working	74.2% (70.3–77.8)	65.9% (61.1–70.4)	0.006
Currently working	25.8% (22.2–29.7)	34.1% (29.6–38.9)
Characteristics	Mean (Standard Deviation)
Age, years	65.4 (8.0)	64.7 (8.4)	0.20
BMI	30.7 (6.4)	31.7 (7.3)	0.02