Table 1

Baseline characteristics of the participants in the study population

CharacteristicsParticipants without EOA (n=3334)Participants with EOA (n= 96)Mean difference (95% CI)
Female, % (n)55.7 (1858)65.6 (63)9.9 (−0.2 to 20)
Age (years), mean, SD66.1 (7.0)68.6 (6.5)2.6 (1.2 to 4.1)*
BMI (kg/m2), mean, SD26.3 (3.6)27.5 (3.5)1.2 (0.5 to 1.9)*
Hand pain, % (n)15.5 (513)39.6 (38)24.1 (14.2 to 33.9)*
HAQ≥ 0.5, % (n)3.2 (105)7.3 (7)4.1 (−1.1 to 9.4)
Manual occupation, % (n)28.5 (910)22.6 (21)−5.9 (−14.6 to 2.7)
  • * Statistically significant with p value < 0.05.

  • HAQ (Stanford Health Assessment Questionnaire) based on eight questions concerning hand function.

  • BMI, body mass index; EOA, erosive osteoarthritis.