Table 3 Proportion of knee complaints among floor layers and graphic designers with tibiofemoral (TF) or patellofemoral (PF) osteoarthritis (OA)
From: Occupational kneeling and radiographic tibiofemoral and patellofemoral osteoarthritis
| Â | Floor layers | Graphic designers | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Â | TF OA | PF OA | TF OA | PF OA | ||||||||
Age groups | N* | n†| (%) | N* | n†| (%) | N* | n†| (%) | N* | n†| (%) |
≤ 49 years | 5 | 3 | (60) | 2 | 2 | (100) | 1 | 1 | (100) | 2 | 1 | (50) |
50–59 years | 12 | 9 | (75) | 9 | 7 | (78) | 4 | 4 | (100) | 7 | 3 | (43) |
≥ 60 years | 5 | 2 | (40) | 1 | 0 | - | 10 | 7 | (70) | 12 | 8 | (67) |