Table 1 Characteristics of women admitted for treatment of hyperemesis gravidarum at Haukeland University Hospital 2002–2019, n = 1,064

Mean (SD)

Age (years)

28.6 (5.2)

Pre-pregnancy BMI (kg/m²)^a

24.5 (4.7)

Weight change at first admission (% of pre-pregnancy weight)

-5.8 (4.4)

Gestational length at first admission (days)^c

66 (19)

Median (IQR)

Gravidity^d

2 (1; 3)

Parity^e

1 (0; 1)

Previous pregnancies with hyperemesis^f

1 (1; 2)

Number of hospitalizations

1 (1; 2)

Total number of days in hospital^g

2 (1; 5)

Total number of antiemetics pre-hospital^h

1 (1; 2)

Total number of antiemetics while hospitalizedⁱ

2 (1; 3)

n (%)

Readmitted once or more

341 (32)

Termination of pregnancy

61 (5.7)