Table 3 Predictors of physical QoL (SF-12 PCS) when adjusting for sociodemographic variables, IBS variables, Subjective Health Complaints-17, Whiteley Index and number of organic diseases (linear regression analyses with all the reported variables included in the analysis)
Variable | p-value | Partial correlation (pc) | Regression coefficient B (95 % CI) |
|---|---|---|---|
Constant | 54.25 (47.05; 61.46) | ||
Age (years) | 0.050 | −0.167 | −0.13 (-0.26; -0.00) |
Male gender | 0.896 | −0.011 | −0.25 (-3.95; 3.45) |
Daily smoking | 0.711 | −0.032 | −0.71 (-4.46; 3.04) |
Alcohol more than 2/week | 0.306 | 0.090 | 2.45 (-2.25; 7.15) |
Education (< 10 years/10-13 years/> 10 years) | 0.810 | 0.021 | 0.31 (-2.25; 2.87) |
IBS duration (years) | 0.721 | 0.032 | 0.02 (-0.09; 0.14) |
IBS symptom intensity score | 0.434 | −0.067 | −0.22 (-0.78; 0.34) |
Subjective Health Complaints-17 | < 0.001 | −0.304 | −0.49 (-0.74; -0.23) |
Whiteley Index | 0.090 | −0.146 | −0.20 (-0.43; 0.03) |
Organic disease (number) | 0.046 | −0.168 | −1.07 (-2.12; -0.02) |