| USA | France | China | Philippines |
Sample size | 1106 | 324 | 200 | 267 |
Severity | 0.87 | 0.86 | 0.86 | 0.80 |
Pain worst | 0.68 | 0.64 | 0.74 | 0.74 |
Pain least | 0.87 | 0.82 | 0.81 | 0.83 |
Pain average | 0.87 | 0.80 | 0.91 | 0.75 |
Pain Nowl | 0.78 | 0.82 | 0.76 | 0.77 |
Interference | 0.91 | 0.90 | 0.91 | 0.86 |
General activity | 0.80 | 0.79 | 0.91 | 0.86 |
Mood | 0.79 | 0.85 | 0.71 | 0.71 |
Walking ability | 0.71 | 0.63 | 0.82 | 0.72 |
Work | 0.80 | 0.73 | 0.86 | 0.79 |
Relations with others | 0.76 | 0.81 | 0.81 | 0.66 |
Sleep | 0.68 | 0.56 | 0.62 | 0.60 |
Enjoyment of life | 0.83 | 0.73 | 0.75 | 0.73 |