Demographic characteristics of study participants
| Characteristic | No. (%) of patients;* group | ||
|---|---|---|---|
| New referrals n = 58* | New consults n = 192* | Presurgical n = 119 | |
| Age, yr, mean ± SD | 68.3 ± 9.3 | 66.0 ± 9.5 | 66.8 ± 8.9 |
| Sex, female | 31 (53.4) | 116 (60.4) | 68 (56.7) |
| Body mass index, kg/m2, mean ± SD | 31.4 ± 7.9 | 32.0 ± 8.3 | 34.9 ± 7.9 |
| Dominant side, right | 51 (87.9) | 171 (89.1) | 114 (95.0) |
| Affected knee, right | 25 (43.1) | 103 (53.6) | 60 (50.0) |
| Contralateral symptoms | 41 (70.7) | 157 (81.8) | 80 (66.7) |
| Previous joint arthroplasty | 6 (10.3) | 19 (9.9) | 40 (33.3) |
| Global rating of knee pain (0–10), mean ± SD | 6.6 ± 2.3 | 5.4 ± 2.4 | 5.3 ± 2.2 |
| PASS 2, yes | 23 (39.7) | 96 (50.0) | N/A |
| Living arrangements | |||
| Alone | 12 (20.7) | 52 (27.1) | 25 (20.8) |
| With spouse or partner | 42 (72.4) | 108 (56.3) | 78 (65.0) |
| With other family member(s) | 3 (5.2) | 32 (16.8) | 17 (14.2) |
| Residential care facility | 1 (1.7) | 0 | 0 |
| Stairs at home, yes | 49 (84.5) | 137 (71.6) | 70 (58.3) |
| Employment status† | |||
| Retired | 32 (55.2) | 105 (55.3) | 75 (63.0) |
| Full time | 11 (19.0) | 49 (25.8) | 17 (14.2) |
| Part time | 6 (10.3) | 12 (6.3) | 12 (10.0) |
| Self-employed | 2 (3.4) | 2 (1.1) | 4 (3.4) |
| Volunteer | 1 (1.7) | 2 (1.1) | 1 (0.8) |
| Long-term disability | 0 | 8 (4.2) | 4 (3.3) |
| Temporary sick leave | 0 | 5 (2.6) | 4 (3.3) |
| Unemployed | 0 | 3 (1.6) | 0 |
| Other | 0 | 4 (2.1) | 2 (1.7) |
| Annual household income‡ | |||
| < $20 000 | 5 (8.6) | 29 (15.3) | 12 (10.0) |
| $20 000–$40 000 | 13 (22.4) | 49 (25.8) | 24 (20.8) |
| $40 000–$60 000 | 7 (12.1) | 29 (15.3) | 24 (20.0) |
| $60 000–$80 000 | 12 (20.7) | 26 (13.7) | 16 (13.3) |
| $80 000–$100 000 | 3 (5.2) | 18 (9.5) | 24 (20.0) |
| > $100 000 | 11 (19.0) | 31 (16.2) | 14 (11.7) |
| Undisclosed | 2 (3.4) | 8 (4.2) | 5 (4.2) |