Table 2.

Mean invalidation scores (discounting and lack of understanding) according to categorical variables. Values are mean ± SD unless otherwise specified.

Categorical VariablesSource: FamilySource: Health Professionals
DiscountingpLack of UnderstandingpDiscountingpLack of Understandingp
Sex
  Female2.3 ± 1.00.0512.5 ± 1.1< 0.0111.9 ± 0.90.9812.2 ± 1.00.561
  Male2.1 ± 0.82.2 ± 0.91.9 ± 0.82.1 ± 0.9
Marital status
  Single1.8 ± 1.00.1522.0 ± 1.00.3321.0 ± 0.80.5421.0 ± 0.9< 0.052
  Partnered2.3 ± 1.02.5 ± 1.12.0 ± 0.92.2 ± 1.1
  Divorced2.7 ± 1.12.7 ± 1.01.9 ± 0.82.2 ± 0.9
  Widowed2.3 ± 1.12.2 ± 1.41.6 ± 0.51.2 ± 0.3
Education
  Primary1.7 ± 0.5< 0.012§1.9 ± 0.90.0621.5 ± 0.70.0522.0 ± 0.90.872
  Secondary2.5 ± 1.02.5 ± 1.12.0 ± 0.92.1 ± 1.1
  Tertiary2.3 ± 1.02.4 ± 1.11.9 ± 0.82.2 ± 1.0
Work status
  Employed2.2 ± 0.9< 0.012¤2.4 ± 1.00.012*1.9 ± 0.90.6022.2 ± 1.00.912
  Unemployed2.5 ± 1.12.5 ± 1.12.0 ± 0.92.2 ± 1.0
  Retired2.5 ± 1.02.8 ± 1.21.8 ± 0.72.2 ± 1.0
Diagnosis
  RA2.1 ± 0.9< 0.00122.2 ± 1.0< 0.00121.8 ± 0.8< 0.00122.0 ± 1.0< 0.0012
  SpA2.1 ± 0.82.2 ± 0.81.9 ± 0.82.0 ± 0.9
  SLE2.1 ± 1.02.1 ± 1.01.7 ± 0.71.9 ± 0.9
  FM2.7 ± 1.02.9 ± 1.12.2 ± 0.92.4 ± 1.1
  • 1 P values were calculated by independent samples Student t test.

  • 2 P values were calculated by ANOVA with Bonferroni correction for multiple comparisons.

  • § Primary versus secondary (p = 0.03).

  • ¤ Employed versus unemployed (p < 0.01).

  • * Employed versus retired (p = 0.04). RA: rheumatoid arthritis; SpA: spondyloarthritis; SLE: systemic lupus erythematosus; FM: fibromyalgia.