Table 4

Differences in HAQ questions of the hand between people with and without EOA in the general population (n= 3294, excluding people with rheumatoid arthritis, Parkinson's disease and stroke)

HAQ ≥ grade 1
Are you able to …
Subjects without EOA,
n=3200
Subjects with EOA,
n=94*
Mean difference of % (95% CI)
Open a new milk carton?7.8 (235)20.4 (19)12.6 (4.4 to 20.9)
Open jars, which have been previously opened?3.6 (107)10.6 (10)7.0 (0.8 to 13.3)
Hold a pen or a pencil?2.8 (82)8.5 (8)5.7 (0.1 to 11.4)
Turn taps on and off?3.4 (103)9.6 (9)6.1 (0.2 to 12.1)
Cut your meat, and lift a full cup or glass to your mouth?1.9 (57)6.5 (6)4.5 (−0.5 to 9.5)
Dress yourself, including handling of closures?4.3 (133)6.4 (6)2.1 (−2.9 to 7.1)
Open car doors?1.6 (50)2.2 (2)0.6 (−2.4 to 3.6)
Comb your hair/do your own make-up?1.2 (37)1.1 (1)−0.1 (−2.2 to 2.1)
  • Radiographic HOA=at least one joint (DIPJ, PIPJ, IPJ or 1st CMCJ) with KL grade ≥2.

    Results are shown as % (n).

  • * Two (out of 96) people with EOA had stroke in the past and therefore were excluded from the analyses.

  • CMCJ, carpometacarpal joint; DIPJ, distal interphalangeal joint; EOA, erosive hand osteoarthritis; HAQ, Health Assessment Questionnaire; HOA, hand osteoarthritis; IPJ, interphalangeal joint; KL, Kellgren and Lawrence; PIPJ, proximal interphalangeal joint.