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. 2022 May 6;82(5):517–527. doi: 10.1055/a-1749-5391

Table 1  Distribution of demographic and clinical features among hyperemesis gravidarum survey respondents. Frequencies represent the demographics of each variable within a treatment category. Sum of nʼs within treatment categories may exceed n of total respondents because treatment categories are not mutually exclusive.

Variable* All respondents
n (%)		 Cannabis users
n (%)		 Ondansetron users
n (%)		 Users of any prescription antiemetic
n (%)
* Sum of nʼs within treatment categories may exceed n of total respondents because treatment categories are not mutually exclusive.
† European Union, New Zealand, Norway, South Africa, Africa, Asia, Bermuda, Israel, Kosovo, Kuwait, Malaysia, Mexico, and Turkey (< 5% for each location included in “Other”)
‡ American Indian/Alaska Native, Native Hawaiian or other Pacific Islander, other, prefer not to answer
Total (n)* 550 76 104 527
Country/continent residence during pregnancy

  • United States

  • United Kingdom

  • Australia

  • Canada

  • Other †

376 (68.4)
51 (9.3)
35 (6.4)
35 (6.4)
53 (9.5)		 64 (84.2)
7 (9.2)
1 (1.3)
2 (2.6)
2 (2.6)		 73 (70.2)
9 (8.7)
8 (7.7)
9 (8.7)
5 (4.8)		 361 (68.5)
47 (8.9)
34 (6.5)
35 (6.6)
50 (9.5)
Self-identified ethnicity

  • White

  • Hispanic/Latino

  • Black/African-American

  • Asian

  • Other ‡

433 (79)
37 (7)
24 (4)
21 (4)
35 (6)		 51 (67.1)
10 (13.2)
8 (10.5)
1 (1.3)
6 (3.9)		 89 (85.5)
5 (4.8)
2 (1.9)
1 (1.0)
7 (6.7)		 420 (79.7)
35 (6.6)
21 (4.0)
20 (3.8)
31 (5.9)
Type of community of residence during most recent pregnancy

  • Suburban

  • Urban

  • Rural

  • Other

 305 (56)
104 (25)
138 (19)
2 (< 1)		 38 (50.0)
17 (22.4)
21 (27.6)
0 (0.0)		 60 (57.7)
23 (22.1)
21 (20.2)
0 (0.0)		 296 (56.2)
132 (25.0)
98 (18.6)
1 (0.2)
Pregnancy status when survey was taken

  • Pregnant during survey

  • No longer pregnant

 280 (50.9)
270 (49.1)		 42 (55.3)
34 (44.7)		 69 (66.3)
35 (33.7)		 269 (51.0)
258 (49.0)
Weeks pregnant at birth during most recent completed pregnancy (if applicable)

  • ≥ 37 weeks

  • 25 – 36 weeks

  • 8 – 24 weeks (termination)

 226 (83.7)
35 (13.0)
9 (3.3)		 29 (85.3)
5 (14.7)
0 (0.0)		 30 (85.7)
3 (8.6)
2 (5.7)		 214 (82.9)
35 (13.6)
9 (3.5)
Age during most recent pregnancy

  • Mean age ± SD

 30.2 ± 4.6 28.6 ± 5.1 29.7 ± 4.1 30.2 ± 4.6
Experienced weight loss during most recent pregnancy

  • Yes

  • No

 464 (86.9)
70 (13.1)		 71 (93.4)
5 (6.6)		 88 (86.3)
14 (13.7)		 445 (86.9)
67 (13.1)