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Table 4 Stepwise regression a of discharge scores for NRS fatigue and SF-36 on baseline scores for the RD-IPQ and other variables (n= 97)

From: Illness perceptions in patients receiving rheumatology rehabilitation: association with health and outcomes at 12 months

Dependent vbl - discharge Independent vbls - baseline Regression coefficient Standard error t Significance level R2b
NRSc fatigue NRS fatigue 0.427 0.104 4.10 .000 0.200
  RD-IPQ d 0.034 0.017 2.02 .046 0.234
  (Constant) 1.298 1.032 1.26 .212  
SF-36e role-physical SF-36 role-physical 0.414 0.098 4.23 .000 0.294
  Inflamm disease 12.499 4.454 2.81 .006 0.359
  RD-IPQ −0.323 0.157 −2.06 .042 0.387
  (Constant) 46.738 12.038 3.88 .000  
SF-36 social function RD-IPQ −0.478 0.182 −2.63 .010 0.203
  SF-36 mental health 0.380 0.153 2.49 .015 0.252
  (Constant) 68.303 19.048 3.59 .000  
SF-36 role-emotional SF-36 role-emotional 0.338 0.092 3.68 .000 0.284
  RD-IPQ −0.500 0.177 −2.82 .000 0.335
  No. yrs diagnosed −0.954 0.353 −2.70 .008 0.383
  (Constant) 85.571 15.292 5.60 .000  
SF-36 mental health SF-36 mental health 0.787 0.082 9.58 .000 0.481
  MHAQ f −15.465 4.822 −3.21 .002 0.509
  SF-36 role-physical −0.164 0.069 −2.36 .020 0.537
  (Constant) 30.282 7.118 4.25 .000  
  1. a Variables are listed in the order in which they entered the equations. The results for the analyses with the MHAQ and NRS pain as dependent variables are not shown because only the baseline scores for the same instruments entered the equations.
  2. b Proportion of variation these variables are able to account for in dependent variable scores.
  3. c NRS scales are scored from 0–10; 0 is no pain and fatigue,10 is the worst pain and fatigue.
  4. d RD-IPQ is scored from 0 to 100 where 100 is worst possible illness perceptions.
  5. e SF-36 is scored from 0 to100 where 100 is the best possible health.
  6. f MHAQ is scored from 0–3; 3 is the greatest overall disability.