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Table 1 Demographic characteristics and pregnancy outcomes of the 236 included women

From: The effects of spinal anaesthesia for elective caesarean section on uterine and umbilical arterial pulsatility indexes in normotensive and chronic hypertensive pregnant women: a prospective, longitudinal study

   All Normotensive Hypertensive  
   n = 236 n = 203 n = 33 p*
Age, mean (SD)   30.0 (6.1) 29.7 (6.0) 31.7 (6.5) 0.110
Parity, median (IQR)   0 (0–1) 0 (0–1) 0 (0–0) 0.047
Education level (in years), n(%) <7 7 (3%) 4 (2%) 3 (9%) 0.199
7-9 77 (33%) 66 (33%) 11 (33%)
10-12 105 (44%) 92 (45%) 13 (40%)
>12 47 (20%) 41 (20%) 6 (18%)
Body Mass Indexa (Kg/m), mean (SD)   28.5 (5.6) 27.9 (5.3) 32.5 (5.3) <0.001
Smoking, n(%)   23 (10%) 19 (9%) 4 (12%) 0.857
Gestational age at delivery (weeks), mean(SD)   40.0 (0.8) 40.1 (0.8) 39.5 (0.8) <0.001
UtA bilateral notching absencea   228 (97%) 196(97%) 32(97%) 1.000
Birth weight at delivery (g), mean (SD)   3140.2 (340.5) 3123.0 (338.8) 3245.9 (337.1) 0.059
Apgar Index 5’ <7 0(0) 0(0) 0(0)  
  1. aBody Mass Index and UtA notching were determined before the caesarean section; UtA, uterine artery; SD, standard deviation; IQR, Inter-quartile range. The Chi-square or Fisher’s test were used as appropriate to compare frequencies within a single categorical variable or to determine independence when applied to two categorical variables; the t-test was used to compare the means between two independent populations. *p, indicates the homogeneity in the proportions between the hypertensive and normotensive groups.