Table 1

Demographic and anthropometric characteristics of questionnaire respondents in 2005


Floor layers (N = 109)
Graphic designers (N = 241)

1995
2005
1995
2005



Mean
Range
Mean
Range
Mean
Range
Mean
Range

Age (years)
43.5
26–60
53.5
36–70
48.6
30–60
58.6
40–70
Seniority * (years)
22.0
2–40
29.4
3–49
27.6
1–45
34.9
2–54
BMI(kg/m2)
25.5
19.6–40.1
26.7
20.0–51.1
25.0
16.8–37.3
26.1
16.6–42.0

Employment in the trade
n (%)
n (%)
n (%)
n (%)

Presently at work
81 (74.3%)
56 (51.4%)
173 (71.8%)
75 (31.1%)
Presently off work
28 (25.7%)
53 (48.6%)
68 (28.2%)
166 (68.9%)
- Change of occupation
     18 (16.5%)
     27 (24.8%)
     37 (15.3%)
     69 (28.7%)
- Early retirement
     2 (1.9%)
     9 (8.3%)
     27 (11.2%)
     68 (28.2%)
- Old-age pension
-
     5 (4.6%)
-
     19 (7.9%)
- Disability pension
     7 (6.4%)
     8 (7.3%)
     4 (1.7%)
     8 (3.3%)
- Rehabilitated
-
     1 (0.9%)
-
-
- Long illness
     1 (0.9%)
     3 (2.7%)
-
     2 (0.8%)

*Duration of employment in the trade

BMI, body mass index

Rytter et al. BMC Musculoskeletal Disorders 2007 8:93   doi:10.1186/1471-2474-8-93