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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 PE

Late-onset PE

No PE

p-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)

0.191

0.024

0.068

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)

0.300

0.060

0.072

MBP27w-MBP20w

y(z)

2.8 (3.2%)

4.2 (5.0%)

1.4 (1.7%)

0.100

0.040

0.012

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)

0.581

0.218

< 0.001

MBP37w-MBP20w

y(z)

1.2 (1.3%)

13.3 (16.1%)

5.2 (6.5%)

0.031

0.229

0.003

Total

14

73

1078

   
  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)