Table 2 Obstetric characteristics of participants
Variables | Preeclampsia (n = 302) | Normotensive (n = 300) | Total (n = 602) | p-value[*] |
|---|---|---|---|---|
Parity | ||||
 Nulliparous | 16 (5.3) | 9 (3) | 25 (4.2) |  |
 1 | 36 (11.9) | 24 (8) | 60 (10) | p > 0.05 |
 2–3 | 172 (57) | 192 (64) | 364 (60.5) |  |
  > 4 | 78 (25.8) | 75 (25) | 153 (25.4) |  |
Gravidity | ||||
 1 | 40 (13.2) | 20 (6.7) | 60 (10) |  |
 2–3 | 169 (56) | 191 (63.7) | 360 (59.8) | p < 0.05 |
  > 4 | 93 (30.8) | 89 (29.7) | 182 (30.2) |  |
Mode of delivery | ||||
 Spontaneous vaginal delivery | 181 (59.9) | 162 (54) | 343 (57) | p > 0.05 |
 Cesarean delivery | 106 (35.1) | 122 (40.7) | 228 (37.9) |  |
 Vacuum assisted delivery | 15 (5) | 16 (5.3) | 31 (5.1) |  |
Interpregnancy Interval (IPI) | ||||
  < 24 months (short IPI) | 15 (5) | 7 (2.3) | 22 (3.7) |  |
 24–59 months (optimal/IPI) | 189 (62.6) | 192 (64) | 381 (63.3) | p > 0.05 |
 60+ months (long IPI) | 64 (21.2) | 68 (22.7) | 132 (21.9) |  |
 Not applicable (prim) | 34 (11.3) | 33 (11) | 67 (11.1) |  |
Gestational age at admission (week) | ||||
  < 34 | 76 (25.2) | 55 (18.3) | 131 (21.8) | p < 0.05 |
 34–37 | 226 (74.8) | 245 (81.7) | 471 (78.2) |  |
Maternal intensive care unit admission | ||||
 Yes | 7 (2.3) | 1 (0.3) | 8 (1.3) | p > 0.05 |
 No | 295 (97.7) | 299 (99.7) | 594 (98.7) |  |
Gestational age at delivery (week) | ||||
 Extremely preterm (< 28) | 6 (2) | 7 (2.3) | 13 (2.2) | p < 0.05 |
 Very preterm (28–32) | 20 (6.6) | 3 (1) | 23 (3.8) | |
 Moderate to late preterm (32–37) | 76 (25.2) | 45 (15) | 121 (15) | |
 Term+(> 37) | 200 (66.2) | 245 (81.7) | 445 (73.9) | |
Admission to neonatal intensive care unit | ||||
 Yes | 70 (23.2) | 36 (12) | 106 (17.6) | p < 0.001 |
 No | 232 (76.8) | 264 (88) | 496 (82.4) |  |
Stillbirth | ||||
 Yes | 23 (7.6) | 5 (1.7) | 28 (4.7) | p < 0.001 |
 No | 279 (92.4) | 295 (98.3) | 574 (95.3) |  |
Preterm birth | ||||
 Yes | 67 (22.2) | 25 (8.3) | 92 (15.3) | p < 0.001 |
 No | 235 (77.8) | 275 (91.7) | 510 (84.7) |  |
Birth asphyxia | ||||
 Yes | 30 (9.9) | 12 (4) | 42 (7) | p < 0.05 |
 No | 272 (90.1) | 288 (96) | 560 (93) |  |
Early neonatal death | ||||
 Yes | 21 (7) | 7 (2.3) | 28 (4.7) | p < 0.001 |
 No | 281 (93) | 293 (97.7) | 574 (95.3) |  |
Perinatal death | ||||
 Yes | 44 (14.6) | 12 (4) | 56 (9.3) | p < 0.001 |
 No | 258 (85.4) | 288 (96) | 546 (90.7) |  |
Birth weight of newborn (gram) | ||||
  < 1500 | 24 (7.9) | 9 (3) | 33 (5.5) |  |
 1500–2499 | 92 (30.5) | 21 (7) | 113 (18.8) |  |
 2500–3999 | 176 (58.3) | 246 (82) | 422 (70.1) | p < 0.001 |
  > 4000 | 10 (3.3) | 24 (8) | 34 (5.6) |  |