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Table 2 Reliability for scoring photographic hand OA by joint and joint group in all 253 participants

From: Longitudinal validity of using digital hand photographs for assessing hand osteoarthritis progression over 7 years in community-dwelling older adults with hand pain

    ICC† % exact agreement % close agreement
Inter-rater Right DIP3 0.89 83.3 100
  DIP2 0.83 71.0 99.6
  PIP3 0.84 88.3 99.6
  PIP2 0.65 85.1 99.6
  1CMC 0.88 84.4 100
Left DIP3 0.85 81.9 100
  DIP2 0.80 70.8 98.6
  PIP3 0.82 90.2 100
  PIP2 0.80 91.4 99.6
  1CMC 0.82 81.3 99.6
Joint group DIPs 0.65 69.7 92.7
PIPs 0.54 85.0 94.9
1CMCs 0.95 93.7 100
Intra-rater Joint group DIPs 0.86 85.7 100
PIPs 0.94 96.4 100
1CMCs 0.90 92.6 100
  1. † Intraclass correlation coefficients (ICCs) were calculated for absolute agreement using 2-way random-effects model for single measures. DIP, Distal Interphalangeal joint; PIP, Proximal Interphalangeal joint; 1CMC, 1st Carpometacarpal joint