| sb | p-value | ||
| Age of SMID child | 0.122 | 0.47 | |
| Age of participant | 0.495 | <0.01** | |
| Status of medical care | Yes/No# | 0.22 | 0.10 |
| Resident area | 1: Ibaraki, 2: Chiba, 3: Tokyo | 0.252 | 0.07 |
| Gender | 1: Female, 2: Male | −0.049 | 0.74 |
| Number of brothers | 0.075 | 0.60 | |
| Personal distress | 1: No, not at all, 2: Temporarily, 3: Currently | −0.17 | 0.24 |
| Distress about caring for SMID child | 1: No, not at all, 2: Temporarily, 3: Currently | −0.004 | 0.98 |
| Degree of cooperation within the family | 1: No, not at all, 2: No, 3: Moderately, 4: Yes, 5: Yes, very much | 0.026 | 0.873 |
| Degree of cooperation outside the family | 1: No, not at all, 2: No, 3: Moderately, 4: Yes, 5: Yes, very much | 0.102 | 0.511 |
| Personal FAD score | 0.135 | 0.668 | |
| Family FAD score¶ | −0.61 | <0.01** | |
| FES score§ | −0.224 | 0.17 | |
| FACESKG-IV adaptability§ | 0.267 | 0.08 | |
| FACESKG-IV cohesion§ | −0.179 | 0.25 | |
| R2 | 0.549 | ||
| adjusted R2 | 0.513 |