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Table 2 Mean arterial blood pressure in the three time periods during pregnancy comparing preeclampsia groups and control

From: Mean arterial blood pressure: potential predictive tool for preeclampsia in a cohort of healthy nulliparous pregnant women

BP (mmHg)Early-onset PELate-onset PENo PEp-value#p-value @p-value&
MBP at 20h weeks a
(95%CI)
87.3 (79.4–95.3)82.4 (80.4–84.3)79.5 (76.8–82.2)0.1910.0240.068
MBP at 27 weeks b
(95%CI)
89.6 (78.0–101.1)84.6 (82.3–86.9)81.0 (78.2–83.9)0.3000.0600.072
MBP27w-MBP20w
y(z)
2.8 (3.2%)4.2 (5.0%)1.4 (1.7%)0.1000.0400.012
MBP at 37 weeks c
(95%CI)
91.6 (81.0–102.1)94.2 (92.4–96.0)84.9 (82.3–87.6)0.5810.218< 0.001
MBP37w-MBP20w
y(z)
1.2 (1.3%)13.3 (16.1%)5.2 (6.5%)0.0310.2290.003
Total14731078   
  1. Missing information for: a: 1 case; b: 229 cases; c: 393 cases (125 already delivered)
  2. y: mean difference atz: increment in percentage
  3. # Early-onset PE x Late-onset PE; @ Early-onset PE x No PE; & Late-onset PE x No PE
  4. p-values in bold mean they are statistically significant (<0.05)