Skip to main content

Table 1 Demographic information and pregnancy characteristics of participants

From: Stillbirth is associated with perceived alterations in fetal activity – findings from an international case control study

  Case(n = 153) Control(n = 480) p-value
Mean Maternal Age (years) (std) a 31 (5.4) 30 (4.8) 0.52
Missing n = 5 n = 20
Maternal Race/Ethnicity
Caucasian 79.7% (n = 122) 90.2% ( n = 430) 0.0002
Hispanic 3.3% (n = 5) 3.8% ( n = 18)
Other 17.0% ( n = 26) 6.0% ( n = 29)
Missing 0 3
Median Maternal BMI (kg/m 2 ) (IQR) a 27.1 (23–32.3) 25.2 (22.5–31) 0.07 *
Missing ( n = 0) (n = 18)
Median Gestational Age (weeks) (IQR) 37 (34–39) 37 (32–39) 0.20 *
Missing (n = 0) (n = 4)
Country    0.0012
United States 79.7% ( n = 122) 68.7% ( n = 325)
Canada 7.2% ( n = 11) 7.0% ( n = 33)
United Kingdom 5.2% ( n = 8) 18.4% ( n = 87)
Other 7.8% (n = 12) 5.9% ( n = 28)
Missing (n = 0) ( n = 7)
Highest Level of Education    0.63
Postdoctoral education 0% (n = 0) 1.3% ( n = 6)
Doctorate Degree 2.0% (n = 3) 5.0% ( n = 24)
Masters Degree 20.9% (n = 32) 20.8% ( n = 99)
Bachelors Degree 37.3% ( n = 57) 36.9% ( n = 176)
Technical/Trade School 3.9% (n = 6) 3.6% (n = 17)
Associates Degree 9.8% (n = 15) 8.0% ( n = 38)
High School Diploma 20.9% (n = 32) 18.2% (n = 87)
Some High School 1.3% (n = 2) 2.5% (n = 12)
Other 3.9% (n = 6) 3.8% (n = 18)
Missing (n = 0) (n = 3)
Employment During Pregnancy    0.09
Work outside the home (full/part time) 67.1% ( n = 102) 60.4% ( n = 288)
Work at home (full/part time) 5.9% (n = 9) 7.8% ( n = 37)
Stay at Home Mom 15.8% (n = 24) 24.5% ( n = 117)
Other 7.2% (n = 11) 4.0% ( n = 19)
Unemployed 4.0% (n = 6) 3.4% ( n = 16)
Missing (n = 1) (n = 3)
High-risk pregnancy 24.8% (n = 38) 35.0% ( n = 168) 0.025
Medical condition diagnosed before pregnancy 3.3% (n = 5) 7.9% (n = 38)  
Medical condition diagnosed during pregnancy 12.4% (n = 19) 8.1% ( n = 39)  
Previous pregnancy complication 3.3% (n = 5) 7.1% ( n = 34)  
Previous pregnancy loss 5.9% (n = 9) 11.9% (n = 57)  
  1. * Non-parametric test (Wilcoxon two-sample t-test)
  2. a Standard deviation (std), Interquartile range (IQR)