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Table 3 Linear regression analysis of SF-36 dimensions (n = 191)

From: Effects of illness perceptions on health-related quality of life in patients with rheumatoid arthritis in China

  PF RP BP GH VT SF RE MH Total SF-36
Age
R2 0.166 0.025 0.045 0.037 0.068 0.053 0.035 0.007 0.078
β − 0.047 − 0.159 − 0.211 − 0.193 − 0.261 − 0.229 − 0.187 − 0.085 − 0.280
P 0.001 0.028 0.003 0.007 0.001 0.001 0.009 0.244 0.001
Disease duration
R2 0.089 0.033 0.058 0.048 0.061 0.063 0.028 0.000 0.069
β − 0.298 − 0.182 − 0.241 − 0.218 − 0.247 − 0.251 − 0.168 − 0.016 − 0.263
P 0.001 0.012 0.001 0.002 0.001 0.001 0.020 0.829 0.001
DAS28
R2 0.619 0.270 0.672 0.317 0.412 0.512 0.210 0.232 0.632
β − 0.787 − 0.520 − 0.820 − 0.563 − 0.641 − 0.716 − 0.459 − 0.481 − 0.795
P 0.001 0.001 0.001 0.001 0.001 0.001 0.001 0.001 0.001
BIPQ–1 Consequences
R2 0.221 0.102 0.249 0.187 0.231 0.199 0.073 0.142 0.266
β − 0.470 − 0.319 − 0.499 − 0.433 − 0.481 − 0.446 − 0.270 − 0.377 − 0.516
P 0.001 0.001 0.001 0.001 0.001 0.001 0.001 0.001 0.001
BIPQ–2 Timeline
R2 0.055 0.083 0.111 0.100 0.057 0.085 0.066 0.013 0.114
β − 0.235 − 0.288 − 0.334 − 0.317 − 0.240 − 0.291 − 0.256 − 0.114 − 0.338
P 0.001 0.001 0.001 0.001 0.001 0.001 0.001 0.115 0.001
BIPQ–3 Personal control
R2 0.113 0.031 0.090 0.142 0.102 0.104 0.059 0.038 0.127
β 0.336 0.175 0.299 0.377 0.320 0.322 0.243 0.196 0.356
P 0.001 0.015 0.001 0.001 0.001 0.001 0.001 0.007 0.001
BIPQ–4 Treatment control
R2 0.006 0.014 0.002 0.023 0.010 0.007 0.025 0.004 0.018
β 0.076 0.120 0.049 0.153 0.101 0.085 0.159 0.059 0.134
P 0.298 0.097 0.499 0.035 0.165 0.242 0.028 0.414 0.066
BIPQ–5 Identity
R2 0.257 0.174 0.300 0.173 0.221 0.244 0.138 0.126 0.330
β − 0.507 − 0.417 − 0.547 − 0.416 − 0.470 − 0.494 − 0.372 − 0.355 − 0.574
P 0.001 0.001 0.001 0.001 0.001 0.001 0.001 0.001 0.001
BIPQ–6 Illness concern
R2 0.008 0.020 0.023 0.028 0.021 0.007 0.017 0.006 0.025
β − 0.090 − 0.141 − 0.151 − 0.166 − 0.146 − 0.082 − 0.131 − 0.079 − 0.158
P 0.216 0.052 0.037 0.022 0.044 0.261 0.071 0.276 0.029
BIPQ–7 Coherence
R2 0.030 0.000 0.008 0.000 0.002 0.016 0.001 0.019 0.009
β 0.174 − 0.018 0.090 − 0.003 0.048 0.128 0.038 0.137 0.093
P 0.016 0.802 0.216 0.963 0.511 0.078 0.601 0.059 0.203
BIPQ–8 Emotional response
R2 0.235 0.158 0.276 0.245 0.270 0.282 0.165 0.266 0.376
β − 0.484 − 0.397 − 0.525 − 0.495 − 0.519 − 0.531 − 0.406 − 0.515 − 0.613
P 0.001 0.001 0.001 0.001 0.001 0.001 0.001 0.001 0.001
Overall BIPQ
R2 0.350 0.206 0.386 0.334 0.333 0.354 0.210 0.212 0.476
β − 0.592 − 0.454 − 0.621 − 0.578 − 0.577 − 0.595 − 0.458 − 0.461 − 0.690
P 0.001 0.001 0.001 0.001 0.001 0.001 0.001 0.001 0.001
  1. We use only variables with 0.1 from above and we selection of independent variables for subsequent multiple regression analyses was based on these analyses
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Health and Quality of Life Outcomes

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