Table 3. Quality of Life before Knee Replacement: A Comparison Between Patients with different Completed Levels of Schooling.
| SF36 Sub-Scale | University, Higher Vocational Education and Preparatory Higher Vocational & Scientific Education: n = 42 | Middle Vocational Education and Preparatory Middle Vocational Education n = 98 | Lower Vocational Education, Elementary Schooling and No Formal Education n = 122 | All Patients: n = 262 |
| Physical Functioning | 40.4 (19.4) | 41.3 (19.1) | 38.4 (22.1) | 39.8 (20.6) |
| Role-Physical | 41.7 (41.9) | 40.4 (42.3) | 38.1 (42.9) | 39.5 (42.4) |
| Bodily Pain | 45.5 (19.4) | 45.4 (19.7) | 42.2 (21.6) | 43.9 (20.6) |
| General Health | 62.5 (19.0) | 65.2 (18.7) | 59.0 (21.1) | 61.9 (20.0) |
| Vitality | 63.2 (18.0) | 63.1 (21.2) | 57.7 (22.3) | 60.6 (21.4) |
| Social Functioning | 72.6 (22.1) | 72.2 (23.0) | 67.3 (26.3) | 70.0 (24.5) |
| Role Emotional | 82.5 (33.1) | 74.5 (39.4) | 62.0 (44.8) | 70.0 (41.8) |
| Mental Health | 79.6 (10.4) | 76.4 (15.7) | 68.1 (20.3) | 73.1 (18.0) |
| PCS | 36.8 (11.8) | 40.2 (9.20) | 40.8 (9.70) | 39.9 (10.0) |
| MCS | 55.5 (7.40) | 53.0 (9.50) | 48.8 (11.2) | 51.5 (10.4) |