| Issue of comparison: country clusters according to | Spearman correlation coefficient (p-value) |
| Part 1 of the RSM questionnaire | 0.37 (p = 0.19) |
| Part 2 of the RSM questionnaire | 0.48 (p = 0.08) |
| Part 3 of the RSM questionnaire | 0.45 (p = 0.11) |
| Part 4 of the RSM questionnaire | 0.63 (p = 0.016) |
| Part 5 of the RSM questionnaire | −0.028 (p = 0.92) |
| Final RSM classification with three country groups | 0.63 (p = 0.015) |
| Final RSM classification with four country groups | 0.48 (p = 0.08) |
| Final RSM classification with five country groups | 0.57 (p = 0.03) |