| |
Item
|
n
tot
|
Cases (n)
|
Controls (n)
|
Pvalue
|
Odds ratio
|
95% confidence interval
|
|---|
|
Knee OA in relatives
|
No (R)
|
367
|
170
|
197
| |
1.00
|
-
|
| |
Yes
|
109
|
76
|
33
|
<0.01
|
2.37
|
1.41 to 3.98
|
|
Body mass index
|
18.5 to <25 kg/m2 (R)
|
157
|
48
|
109
| |
1.00
|
-
|
| |
≥25 to <30 kg/m2
|
240
|
133
|
107
|
<0.001
|
2.26
|
1.43 to 3.57
|
| |
≥30 to <35 kg/m2
|
128
|
84
|
44
|
<0.001
|
4.00
|
2.30 to 6.94
|
| |
≥35 kg/m2
|
40
|
35
|
5
|
<0.001
|
12.56
|
4.40 to 36.86
|
|
Occupation: kneeling or squatting
|
No (R)
|
272
|
128
|
144
| |
1.00
|
-
|
| |
Yes, <3,574 hours/life
|
94
|
48
|
46
|
NS
|
1.70
|
0.96 to 3.00
|
| |
Yes, 3,574 to 12,244 hours/life
|
94
|
55
|
39
|
<0.01
|
2.16
|
1.24 to 3.77
|
| |
Yes, >12,244 hours/life
|
94
|
61
|
33
|
<0.01
|
2.47
|
1.41 to 4.32
|
|
Sports with risk for unapparent trauma
|
No (R)
|
218
|
109
|
109
| |
1.00
|
-
|
| |
Yes, <3,232 hours/life
|
168
|
82
|
86
|
NS
|
1.57
|
0.98 to 2.52
|
| |
Yes, ≥3,232 hours/life
|
168
|
104
|
64
|
<0.01
|
2.58
|
1.59 to 4.17
|
- NS, not significant; (R), reference category.
