Table 1 Participants’ characteristics by anatomical site (knee, hip and hand) and according to clinical evidence and labelling of osteoarthritis
From: Osteoarthritis medical labelling and health-related quality of life in the general population
Anatomical site | Total | Absence of joint disease | With OA but not labelled with OA | With OA and labelled with OA | ||
|---|---|---|---|---|---|---|
n (%) | n (%) | n (%) | n (%) | p* | p† | |
Knee (n = 1040) | 906 (87.1) | 58 (5.6) | 76 (7.3) | |||
Sex | ||||||
Female | 588 (56.5) | 486 (53.6) | 42 (72.4) | 60 (79.0) | p < 0.001 | 0.379 |
Male | 452 (43.5) | 420 (46.4) | 16 (27.6) | 16 (21.1) | ||
Age | ||||||
≤65 years | 778 (74.8) | 722 (79.7) | 28 (48.3) | 28 (36.8) | p < 0.001 | 0.145 |
>65 years | 262 (25.2) | 184 (20.3) | 30 (51.7) | 48 (63.2) | ||
Education | ||||||
≤12 years | 693 (66.6) | 572 (63.1) | 51 (87.9) | 70 (92.1) | p < 0.001 | 0.419 |
>12 years | 347 (33.4) | 334 (36.9) | 7 (12.1) | 6 (7.9) | ||
BMI | ||||||
<30 kg/m2 | 830 (79.8) | 749 (82.7) | 42 (72.4) | 39 (51.3) | p < 0.001 | 0.013 |
≥30 kg/m2 | 210 (20.2) | 157 (17.3) | 16 (27.6) | 37 (48.7) | ||
Intensity of pain | ||||||
≤40 mm | 922 (88.6) | 868 (95.8) | 33 (56.9) | 21 (27.6) | p < 0.001 | 0.001 |
>40 mm | 118 (11.4) | 38 (4.2) | 25 (43.1) | 55 (72.4) | ||
Comorbidities | ||||||
No comorbidities | 330 (31.7) | 314 (34.7) | 8 (13.8) | 8 (10.5) | p < 0.001 | 0.563 |
At least one comorbidity | 710 (68.3) | 592 (65.3) | 50 (86.2) | 68 (89.5) | ||
Hip (n = 941) | 906 (96.3) | 20 (2.1) | 15 (1.6) | |||
Sex | ||||||
Female | 510 (54.2) | 486 (53.6) | 11 (55.0) | 13 (86.7) | 0.039 | 0.046 |
Male | 431 (45.8) | 420 (46.4) | 9 (45.0) | 2 (13.3) | ||
Age | ||||||
≤65 years | 735 (78.1) | 722 (79.7) | 9 (45.0) | 11 (73.3) | p < 0.001 | 0.094 |
>65 years | 206 (21.9) | 184 (20.3) | 11 (55.0) | 4 (26.7) | ||
Education | ||||||
≤12 years | 600 (66.4) | 572 (63.1) | 16 (80.0) | 12 (80.0) | 0.126 | 0.999 |
>12 years | 341 (36.2) | 334 (36.9) | 4 (20.0) | 3 (20.0) | ||
BMI | ||||||
<30 kg/m2 | 768 (81.6) | 749 (82.7) | 16 (80.0) | 3 (20.0) | p < 0.001 | p < 0.001 |
≥30 kg/m2 | 173 (18.4) | 157 (17.3) | 4 (20.0) | 12 (80.0) | ||
Intensity of pain | ||||||
≤40 mm | 897 (95.3) | 883 (97.5) | 10 (50.0) | 4 (26.7) | p < 0.001 | 0.163 |
>40 mm | 44 (4.7) | 23 (2.5) | 10 (50.0) | 11 (73.3) | ||
Comorbidities | ||||||
No comorbidities | 321 (34.1) | 314 (34.7) | 6 (30.0) | 1 (6.7) | 0.071 | 0.088 |
At least one comorbidity | 620 (65.9) | 592 (65.3) | 14 (70.0) | 14 (93.3) | ||
Hand (n = 1040) | 906 (87.1) | 56 (5.4) | 78 (7.5) | |||
Sex | ||||||
Female | 601 (57.8) | 486 (53.6) | 43 (76.8) | 72 (92.3) | p < 0.001 | 0.011 |
Male | 439 (42.7) | 420 (46.4) | 13 (23.2) | 6 (7.7) | ||
Age | ||||||
≤65 years | 780 (75.0) | 722 (79.7) | 23 (41.2) | 35 (44.9) | p < 0.001 | 0.502 |
>65 years | 260 (25.0) | 184 (20.3) | 33 (58.9) | 43 (55.1) | ||
Education | ||||||
≤12 years | 691 (66.4) | 572 (63.1) | 47 (83.9) | 72 (92.3) | p < 0.001 | 0.129 |
>12 years | 349 (33.6) | 334 (36.9) | 9 (16.1) | 6 (7.7) | ||
BMI | ||||||
<30 kg/m2 | 836 (80.4) | 749 (82.7) | 39 (69.6) | 48 (61.5) | p < 0.001 | 0.332 |
≥30 kg/m2 | 204 (19.6) | 157 (17.3) | 17 (30.4) | 30 (38.5) | ||
Intensity of pain | ||||||
≤40 mm | 945 (90.9) | 874 (96.5) | 40 (71.4) | 31 (39.7) | p < 0.001 | p < 0.001 |
>40 mm | 95 (9.1) | 32 (3.5) | 16 (28.6) | 47 (60.3) | ||
Clinical comorbidities | ||||||
No comorbidities | 334 (32.1) | 314 (34.7) | 9 (16.1) | 11 (14.1) | p < 0.001 | 0.752 |
At least one comorbidity | 706 (67.9) | 592 (65.3) | 47 (83.9) | 67 (85.9) |