Table 5 Demographic characteristics of the replication cohorts HG-IV consisting of HG patients treated with intravenous (IV) fluids and controls with untreated NVP, and HG-TPN consisting of HG patients treated with total parenteral nutrition (TPN) and controls with no NVP

From: Placenta and appetite genes GDF15 and IGFBP7 are associated with hyperemesis gravidarum

  Total Year born (average) Ethnicity (European descent) Attended college Advanced degree First child year born
HG-IV       
HG 789 1977 90% 61% 19% 2003
Control 606 1975 92% 62% 18% 2002
HG-TPN       
HG 110 1976 90% 61% 26% 2002
Control 143 1974 93% 51% 25% 2001