Table 4. Odds ratios for predictors of neck pain among Finnish office workers in 1998-99
(logistic regression model with interactions, adjusted for the time used in VDU work; n=137)

 
Neck pain
Predictors
OR
 95% CI
Work-related predictors
 
 
Physical work environment:
 Mean score > 3
 Mean score ≤ 3

1.0
2.4


1.0 to 6.0
Distance of the keyboard from the edge of the table:
 Good (≥ 15 cm)
 Poor (< 15 cm)

1.0
1.9


0.8 to 4.3
Individual predictors
 
 
Sex:
 Male
 Female

1.0
6.7


1.4 to 30.9
Age (years):
 25 - 43
 44 - 51
 52 – 61

1.0
2.7
2.5


0.6 to 12.5
0.5 to 12.1
Smoking:
 Never-smoker
 Current/Ex-smoker

1.0
1.5


0.6 to 3.6
Mental stress:
 None / little
 Some / fairly much / much

1.0
0.5


0.2 to 1.4
Frequency of physical exercise (times/week):
 ³ 2
 £ 1

1.0
0.8


0.2 to 2.7
Interactions
 
 
Age x Sex:
 25 - 43 x Male
 44 - 51 x Female
 52 - 61 x Female

1.0
0.1
1.1


0.0 to 0.7
0.1 to 10.3
Mental stress x Frequency of physical exercise:
 None / little x ≥ 2
 Some / fairly much / much x ≤  1

1.0
6.7


1.0 to 43.6