Skip to main content

Table 7 Tibiofemoral (TF) osteoarthritis (OA) among floor layers (n = 134) and graphic designers (n = 120) relative to trade seniority

From: Occupational kneeling and radiographic tibiofemoral and patellofemoral osteoarthritis

 

Floor layers

Graphic designers

 

Total

TF OA

  

Total

TF OA

  

Seniority

N

n (%)

OR*

95% CI

N

n (%)

OR*

95% CI

≤ 20 years

29

2 (6.9)

1.0

-

8

1 (12.5)

1.0

-

21–30 years

44

6 (13.6)

2.3

0.4–12.8

26

2 (7.7)

1.4

0.1–21.4

≥ 31 years

61

14 (23.0)

5.0

0.9–28.5

86

12 (14.0)

1.6

0.1–17.5

  1. Odds ratio (OR) with 95% confidence interval (CI)
  2. * Adjusted for age, body mass index and knee-straining sports activities
  3. Test for trend due to incremental increase in the risk of TF OA at each seniority level: floor layers OR* = 2.2, 95%
  4. CI = 1.0–5.1; graphic designers OR* = 1.2, 95% CI = 0.4–3.5
Back to article page

Journal of Occupational Medicine and Toxicology

ISSN: 1745-6673