Table 3.

Univariate correlation of lost-hour estimates with demographic, disease, and job characteristics. Value indicated by mean (SD).

CharacteristicHLQWLQHPQWPAI
Hindered by arthritis at work
  No, not at all0.4 (1.3)*3.2 (3.9)*9.5 (8.4)*7.8 (10.0)*
  Yes, to a degree2.8 (5.1)4.8 (3.4)18.4 (15.2)20.6 (18.4)
  Yes, very much5.5 (6.8)7.0 (4.9)21.0 (13.6)31.7 (24.1)
Health status
  Excellent or very good0.6 (1.6)*3.3 (3.7)*11.5 (12.1)*9.5 (15.5)*
  Good1.4 (4.0)4.0 (3.5)12.3 (9.5)14.9 (14.9)
  Fair or poor4.5 (6.1)5.9 (4.7)21.6 (16.8)24.2 (19.4)
Diagnosis
  OA1.6 (3.7)3.8 (3.7)12.8 (12.6)12.4 (15.2)
  RA1.5 (4.0)4.3 (4.1)14.3 (12.4)16.3 (18.0)
Sex
  Male1.5 (4.4)4.0 (4.4)14.3 (12.8)13.8 (18.2)
  Female1.6 (3.8)4.0 (3.8)13.2 (12.3)14.3 (16.5)
Duration
  ≤ 5 yrs1.1 (3.8)*4.1 (4.2)13.4 (13.9)12.3 (14.5)
  > 5 yrs1.9 (4.0)4.0 (3.7)13.2 (10.9)15.8 (18.4)
Occupation
  Business, finance, administration1.5 (3.7)4.2 (4.1)14.4 (14.8)13.0 (15.1)
  Health, science, arts, sports1.2 (2.7)3.4 (2.8)13.5 (11.8)13.5 (17.1)
  Sales and services1.1 (2.5)3.7 (4.3)11.0 (7.8)15.2 (17.1)
  Trades, transport, equipment operators2.8 (6.6)6.5 (5.8)15.1 (11.6)22.7 (22.6)
Other medical problems
  01.1 (3.3)*3.6 (3.9)12.7 (12.4)12.6 (17.0)
  11.1 (2.5)4.2 (3.6)12.5 (12.6)13.0 (15.3)
  22.1 (4.9)3.9 (3.5)14.2 (11.3)14.4 (11.7)
  > 23.7 (6.4)5.4 (5.7)18.4 (14.6)24.6 (25.2)
  • * p < 0.05 for Wilcoxon test (2 groups) or Kruskal-Wallis test (3 groups). HLQ: Health and Labour Questionnaire; WLQ: Work Limitations Questionnaire; HPQ: WHO Health and Work Performance Questionnaire; WPAI: Work Productivity and Activity Impairment Questionnaire; OA: osteoarthritis; RA: rheumatoid arthritis.