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NRS on the level of pain over the previous 24 h
| Level of pain | All patients | Mainland China | Hong Kong |
|---|---|---|---|
| Average of most severe pain | 7.48 | 7.87 | 6.5 |
| Range | 3–10 | 5–10 | 3–9 |
| Average number of severe pain outbursts | 4.74 | 4.3 | 5.83 |
| Range | 0–9 | 1–8 | 0–9 |
| Average range of slightest pain | 3.1 | 2.93 | 3.5 |
| Range | 0–8 | 0–7 | 0–8 |
| Average pain | 5.62 | 5.73 | 5.33 |
| Range | 3–8 | 3–8 | 3–8 |
| Average current pain | 5.8 | 5.9 | 5.58 |
| Range | 0–9 | 1–8 | 0–9 |
