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Total points ≥6 in mild NVP, 7-12 in moderate NVP and ≥13 in severe NVP.
| 5 points | 4 points | 3 points | 2 points | 1 point | |
| Duration of nausea in a day (hours) | >6 | 4-6 | 2-3 | ≤1 | No nausea |
| Number of vomitings in a day | ≥7 | 5-6 | 3-4 | 1-2 | No vomiting |
| Number of retchings in a day without bringing up food | ≥7 | 5-6 | 3-4 | 1-2 | No retching |
