Skip to main content

Advertisement

Table 2 Regression coefficients and odds ratios for both the dichotomous and continuous expert-based prognostic model for persistent shoulder pain

From: Prediction of persistent shoulder pain in general practice: Comparing clinical consensus from a Delphi procedure with a statistical scoring system

  Expert-based model, dichotomous predictors Expert-based model, continuous predictors
Predictors categorya β (SE) OR (95% CI) Category β (SE) OR (95% CI)
Symptom duration >11 weeks 0.654 (0.183) 1.92 (1.34 - 2.75) <6 weeksb   
   presence of the current shoulder pain     6-11 weeks 0.600 (0.236) 1.82 (1.15 - 2.89)
   problem for a period of     >11 weeks 0.898 (0.213) 2.45 (1.61 - 3.73)
Pain catastrophizing NRS (0-10) >4 0.549 (0.184) 1.73 (1.21 - 2.48) NRS (0-10) 0.092 (0.032) 1.10 (1.03 - 1.17)
   believing shoulder pain to be permanent rather than temporary       
Symptom history yes 0.188 (0.181) 1.21 (0.85 - 1.72) yes 0.210 (0.185) 1.23 (0.86 - 1.77)
   experienced earlier episode(s) of shoulder pain       
Fear-avoidance beliefs NRS (0-10) >7 -0.031 (0.180) 0.97 (0.68 - 1.38) NRS (0-10) -0.003 (0.028) 0.99 (0.94 - 1.05)
   believing activity will worsen the shoulder pain       
Coexisting neck pain yes -0.067 (0.207) 0.93 (0.62 - 1.40) yes -0.066 (0.211) 0.94 (0.62 - 1.41)
   additional neck pain during the current shoulder pain period       
Severity of shoulder disability yes 0.130 (0.178) 1.14 (0.80 - 1.61) score (0-20) -0.032 (0.021) 0.97 (0.93 - 1.01)
   being unable to perform normal daily activities in the past week or for a longer period of time       
Multisite pain yes 0.294 (0.219) 1.34 (0.87 - 2.06) yes 0.378 (0.223) 1.46 (0.94 - 2.26)
   pain or stiffness in other areas than the afflicted shoulder       
Age >52 years 0.275 (0.176) 1.32 (0.93 - 1.86) years 0.015 (0.007) 1.01 (1.00 - 1.03)
Shoulder pain intensity NRS (0-10) > 5 -0.388 (0.186) 0.68 (0.47 - 0.98) NRS (0-10) -0.150 (0.044) 0.86 (0.79 - 0.94)
   shoulder pain experienced in the last 24 hours       
Illness perceptions yes 0.144 (0.177) 1.15 (0.81 - 1.63) yes 0.148 (0.181) 1.16 (0.81 - 1.65)
   believing there is not a lot the person can do to control the shoulder pain intercept   -1.078 (0.226)    -1.119 (0.565)  
  1. Predictors from the third Delphi round together with their suggested formulations as indicated by the expert panel
  2. B = regression coefficient estimate
  3. SE = standard error of regression coefficient estimate
  4. OR = odds ratio
  5. 95% CI = 95% confidence interval for the odds ratio
  6. a predictors were dichotomized by using median split value scores
  7. b reference category