Table 4. Crude and adjusted means and mean differences of pressure pain thresholds assessed by pressure algometry in the trapezius and supraspinatus muscles and the tibia according to self-reported job strain.
Pressure pain threshold (kPa) | |||||||||
---|---|---|---|---|---|---|---|---|---|
Self-reported job strain | N | MeanCr | SD | MeanAdj1 | ΔMeanAdj1 | MeanAdj2 | ΔMeanAdj2 | 95% CI | |
M. Trapezius | No (reference) | 1136 | 553.2 | 246.5 | 555.2 | 553.6 | |||
Yes | 85 | 480.4 | 228.1 | 477.8* | 77.4* | 490.5 | 63.0* | 10.3–115.8 | |
M. Supraspinatus | No (reference) | 1133 | 691.5 | 256.7 | 694.4 | 693.9 | |||
Yes | 85 | 601.4 | 245.2 | 596.9* | 97.5* | 617.7 | 76.1* | 22.3–130.0 | |
Tibia | No (reference) | 1130 | 722.2 | 235.5 | 721.9 | 721.8 | |||
Yes | 85 | 663.6 | 226.5 | 660.4* | 61.5* | 669.3 | 52.4 | -0.5–105.4 |
*: P < 0.05
MeanAdj1: Adjusting for age and body mass index.
MeanAdj2: Adjusting for age, BMI body mass index and discomfort from the region closest to the anatomical site of pressure algometry
ΔMean: Comparing high job strain with low job strain