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Table 2 Times to hCG rise (256 women) and to onset of symptoms (241 women)

From: The onset of nausea and vomiting of pregnancy: a prospective cohort study

Time Summary statistics in days
  Minimum Lower Median Upper Maximum
   quartile   quartile  
LMP to hCG >1mlU/ml 15 23 25 28 60
Ovulation to hCG >1mlU/ml 1 9 9 10 13
LMP to symptom onset 21 28 32 40 66
Ovulation to symptom onset 8 13 16 22 45