Table 5

Associations between persistent pain status at 18 months and lost time disability claim benefit outcomes, overall cohort (n=1131)

Dependent variable 1: total number of LOE daysB95% CI
InterceptIntercept3.1912.9333.449
Pain groupMild pain, functional impairment unlikely versus no pain0.116−0.0870.320
Severe pain, functional impairment likely versus no pain0.5110.3000.722
Dependent variable 2: total amount of LOE benefits
InterceptIntercept7.9257.6548.197
Pain GroupMild pain, functional impairment unlikely versus no pain0.134−0.0790.348
Severe pain, functional impairment likely versus no pain0.4770.2540.699
Dependent variable 3: total amount of healthcare expenditure benefits
InterceptIntercept6.9836.6617.304
Pain groupMild pain, functional impairment unlikely versus no pain0.4790.2250.732
Severe pain, functional impairment likely versus no pain1.2590.9971.522
  • Bold values indicate statistically significant estimate at the α=0.05 level. Analyses adjusted for age, sex, nature of injury and prior chronic conditions. Regression coefficients interpreted as a ‘β% increase’ in the dependent variable per each unit increase in the independent variable. For example in dependent variable 1 (total number of LOE days), the coefficient of mild pain functional impairment unlikely vs no pain (β=0.116) can be interpreted as: those with mild pain had a total number of LOE days 11.6% higher, on average, compared with those with no pain.

  • LOE, loss of earnings.