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Table 3 Correlations between change in photographic hand score and change in (i) radiographic score and (ii) number of clinical features between baseline and 7 years by joint and joint group

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

 

Change in photographic hand OA with change in radiographic OA

Change in photographic hand OA with change in the number of clinical features

n*

Rho (p value)

n*

Rho (p value)

Left

DIP2

231

0.138 (p = 0.036)

228

0.032 (p = 0.627)

DIP3

234

0.202 (p = 0.002)

243

0.161 (p = 0.012)

PIP2

244

0.198 (p = 0.002)

250

0.116 (p = 0.066)

PIP3

236

−0.089 (p = 0.171)

243

0.076 (p = 0.239)

1CMC

191

0.130 (p = 0.072)

189

0.094 (p = 0.197) †

Right

DIP2

216

−0.066 (p = 0.337)

214

0.097 (p = 0.155)

DIP3

228

0.070 (p = 0.294)

231

0.092 (p = 0.164)

PIP2

236

0.134 (p = 0.039)

242

0.023 (p = 0.717)

PIP3

231

−0.019 (p = 0.773)

235

0.138 (p = 0.035)

1CMC

182

0.102 (p = 0.170)

177

0.063 (p = 0.405) †

Joint group

DIPs

205

0.109 (p = 0.119)

201

0.109 (p = 0.124)

PIPs

226

0.143 (p = 0.032)

228

0.241 (p < 0.001)

1CMCs

162

0.107 (p = 0.176)

161

0.042 (p = 0.596) †

  1. * Study population n = 253 but individuals were excluded from analyses if at baseline they had the maximum score in a joint for either construct. † Change in the number of clinical features were − 2 to 2 as only two clinical features for the thumb were assessed at baseline (deformity, joint enlargement). Correlations presented are Spearman Rank correlation coefficients. DIP, Distal Interphalangeal joint; PIP, Proximal Interphalangeal joint; 1CMC, 1st Carpometacarpal joint