Table 2

Risk of no recovery by occupational characteristics at time of diagnosis in 113 workers with shoulder tendonitis

CharacteristicsnORcrudeORadj*95% CI
MVC, maximal voluntary contraction.
Centiles are based on the distributions in the source population.
*Adjustment for gender, age, right/left side tendonitis, intrinsic effort personality and algometric threshold (if appropriate: the analysis of risk attributable to gender was not “adjusted” for gender but for the other covariates, etc).
†Only including right sided shoulder tendonitis.
Diagnosis
    At baseline681.01.10.5 to 2.3
    At follow up451.01.0
Gender
    Female680.90.80.4 to 1.8
    Male451.01.0
Age
    >55 years243.83.81.4 to 10.7
    45–55 years522.02.00.8 to 5.0
    <45 years371.01.0
Intrinsic effort personality
    Yes251.21.20.5 to 2.7
    No871.01.0
Pressure algometry threshold*
    <25th centile331.01.10.5 to 2.3
    ⩾25th centile801.01.0
Side of shoulder disorder
    Dominant620.80.80.4 to 1.6
    Non-dominant511.01.0
Repetitive work
    Yes860.91.00.4 to 8.5
    No271.01.0
Task cycle duration
    <20 seconds691.41.00.5 to 2.1
    ⩾20 seconds441.01.0
Shoulder movements/minute†
    >15220.80.60.2 to 2.0
    ⩽15291.01.0
Use of shoulder force$
    >10% of MVC18080.50.1 to 2.3
    ⩽10% of MVC331.01.0
Perceived job demands
    High (>75th centile)204.04.11.1 to 19.2
    Moderate (25th to ⩽75th centile)771.81.80.5 to 6.1
    Low (⩽25th centile)161.01.0
Perceived job control
    Low (⩽25th centile)302.12.50.6 to 10.4
    Moderate (25th to ⩽75th centile)691.61.80.5 to 6.3
    High (>75th centile)141.01.0
Perceived social support
    Low (⩽25th centile)434.36.82.0 to 23.0
    Moderate (25th to ⩽75th centile)442.33.10.9 to 10.1
    High (>75th centile)261.01.0