| Variablesa |
n |
|
Kellgren-Lawrence score |
p |
| |
Grade 2,3,4 |
Grade 1 |
Grade 0 |
| |
(N=65) |
(N=132) |
(N=296) |
| Sex, age, anthropometric factors, and medical history |
| Sex |
|
|
|
|
|
|
| male |
120 |
|
15 (13%) |
34 (28) |
71 (59) |
0.974c |
| female |
373 |
|
50 (13%) |
98 (26) |
225 (60) |
| Age (years) |
493 |
range |
50.2-83.7 |
43.1-83.2 |
40.1-81.0 |
<0.0001b |
| |
median |
67.8 |
65.3 |
57.3 |
| Height (cm) |
493 |
range |
141-174 |
136-174 |
137-183 |
0.031b |
| |
median |
153 |
153 |
154 |
| Weight at age 40 (kg) |
493 |
range |
39-90 |
35-75 |
36-95 |
0.506b |
| |
median |
54 |
53 |
53 |
| BMI at age 40 (kg/m2) |
493 |
range |
17.8-35.4 |
16.0-29.8 |
15.8-30.3 |
0.002b |
| |
median |
22.9 |
22.1 |
21.8 |
| Weight (kg) |
493 |
range |
37-86 |
33-92 |
35-91 |
0.625c |
| |
median |
55 |
55 |
55 |
| BMI (kg/m2) |
493 |
range |
18.3-38.7 |
15.9-34.9 |
13.8-32.2 |
0.043c |
| |
median |
23.9 |
23.2 |
22.9 |
| History of treatment for knee injury (≥2 weeks) |
| none |
408 |
|
45 (11%) |
100 (25) |
263 (64) |
<0.0001c |
| presence |
85 |
|
20 (24%) |
32 (38) |
33 (39) |
| Occupation and lifestyle |
|
|
|
|
|
|
| Occupation |
|
|
|
|
|
|
| Non-physical workers |
276 |
|
27 (10%) |
67 (24) |
182 (66) |
0.001c |
| Physical workers |
217 |
|
38 (18%) |
65 (30) |
114 (53) |
| Often good posture while sitting before age 40 |
| no |
218 |
|
20 (9%) |
52 (24) |
146 (67) |
0.003c |
| yes |
275 |
|
45 (16%) |
80 (29) |
150 (55) |
aVariables are expressed as a percentage, bKruskal-wallis test, cChi-square test. |
