Table 1

Ethnicity, age and week of gestation
Characteristic Early stage Late stage Overall
PE Control pvalue PE Control pvalue pvalue
Number = 15 (48.4%) Number = 16 (51.6%) Number = 17 (51.5%) Number = 16 (48.5%)
Ethnicity 0.57 0.123 0.289
 African American 5 (33.3%) 5 (31.2%) 2 (11.8%) 4 (25%)
 Asian 2 (13.3%) 0 (0) 0 (0) 0 (0)
 Hispanic 8 (53.3%) 10 (62.5%) 11 (64.7%) 12 (75%)
 Other 0 (0) 1 (6.2%) 4 (23.5%) 0 (0)
Age (year)
 mean (SD) 24.3 (4.5) 24.1 (6.1) 0.89 27.9 (9.0) 26.6 (7.7) 0.857 0.6
Week of gestationa
 mean (SD) 30.3 (3.2) 30.1 (2.9) 0.851 37.1 (1.4) 37.2 (1.6) 0.895 0.824

aThe time of blood drawing. PE, preeclampsia.

Liu et al.

Liu et al. BMC Medicine 2013 11:236   doi:10.1186/1741-7015-11-236

Open Data