Predictive variables | Model 1 | Model 2 | Model 3 |
β | β | β | |
Age | 0.01 | −0.04 | −0.15 |
Education level | |||
Middle to high versus primary and below | −0.01 | 0.02 | 0.04 |
College and above versus primary and below | −0.11 | −0.06 | −0.09 |
Marital status (married vs single) | −0.16 | −0.00 | 0.08 |
Employment status (yes vs no) | −0.22 | −0.26 | −0.30* |
Monthly income | |||
20 000–39 999 vs <20 000 | −0.18 | −0.09 | −0.01 |
≥40 000 vs <20 000 | −0.07 | 0.04 | 0.06 |
Tumour site (others vs buccal mucosa) | 0.27* | 0.32** | 0.37** |
Cancer stage | |||
II vs I | −0.08 | 0.02 | 0.034 |
III vs I | −0.16 | −0.10 | −0.04 |
IV vs I | −0.04 | −0.03 | −0.07 |
Adjuvant therapy (yes vs no) | 0.14 | 0.08 | 0.09 |
Postsurgical period | −0.21 | −0.23 | −0.12 |
Facial disfigurement | – | 0.35** | 0.35*** |
Social support | – | −0.27* | −1.01*** |
Facial disfigurement * social support | – | – | 0.79*** |
R2 | 0.34* | 0.52*** | 0.62*** |
F | 2.19 | 3.85 | 5.48 |
R2 change | 0.34* | 0.18*** | 0.11*** |
F change | 2.19 | 10.03 | 14.98 |
*P<0.05, **P<0.01, ***P<0.001.