Table 4: Four independent linear regression analyses with SOC total and subdimension scores as dependent variables in patients with ulcerative colitis ( ).

Independent variablesSOC total scoreComprehensibility Manageability Meaningfulness
value value value value

Step  1.
 Gender (female = 0)−0.130.030−0.150.021−0.080.219−0.080.211
 Age0.000.998−0.010.527−0.060.328 0.060.388
 Education level ( 12 years = 0)0.070.233
 Work status (not working = 0)−0.010.677
 Marital status (not married/cohabitating = 0) 0.140.0210.110.100 0.100.111 0.160.018
Explained variance ( )6.2%7.0%4.8%6.2%
Step  2.
 SCCAI −0.020.744−0.060.311−0.020.814
 Comorbidities (no = 0)−0.030.638−0.030.624
change2.9%2.9%2.2%0.01%
Step  3.
 FSS-5−0.40<0.001−0.42<0.001−0.33<0.001−0.25<0.001
change19.0%20.1%13.3%9.3%
Step  4.
 GSE0.44<0.001 0.39<0.001 0.39<0.001 0.36<0.001
change16.0%13.0%13.6%11.5%

Total 44.8%43.0%33.8%27.0%

Abbreviations: : standardized beta coefficient; SCCAI: simple clinical colitis activity index; FSS-5: Five-Item Fatigue Severity Scale; GSE: General Self-Efficacy Scale.
In addition to gender and age, variables that had a Pearson correlation coefficient with in bivariate analyses were included in final regression models.