Comparison of Placenta Previa and Placenta Accreta Spectrum Disorder Following Previous Cesarean Section between Women with a Short and Normal Interpregnancy Interval
Table 2
Clinical characteristics of the study participants.
Variables
Normal IPI (n = 124)
Short IPI (n = 124)
Test stat
-value
Parity
U = 7633.00
0.20
Mean (SD)
2.19 (1.18)
2.13 (0.10)
95% CI
1.98–2.40
1.95–2.30
Median
2.00
2.00
Min-Max
1.00–7.00
1.00–5.00
Number of C/S
U = 7410.50
0.57
Mean (SD)
1.48 (0.73)
1.52 (0.72)
95% CI
1.35–1.61
1.39–1.65
Median
1.00
1.00
Min-Max
1.00–4.00
1.00–4.00
Mean gestational age at booking (weeks)
U = 6854.50
0.14
Mean (SD)
18.12 (5.99)
19.19 (5.77)
95% CI
17.06–19.19
18.16–20.21
Median
17.50
18.00
Min-Max
7.00–31.00
7.00–32.00
Mean systolic BP (mmHg)
U = 6939.50
0.17
Mean (SD)
106.21 (13.10)
108.4 (11.97)
95% CI
103.98–108.54
106.30–110.60
Median
110.00
110.00
Min-Max
80.00–140.00
80.00–140.00
Mean diastolic BP (mmHg)
U = 6194.50
0.005
Mean (SD)
64.52 (9.89)
67.30 (7.82)
95% CI
62.76–66.27
65.91–68.69
Median
60.00
70.00
Min-Max
50.00–95.00
50.00–90.00
Body mass index
χ2 = 1.16
0.76
Underweight
0 (0.0%)
1 (0.8%)
Normal
4 (3.2%)
3 (2.4%)
Overweight
28 (22.6%)
27 (22.0%)
Obese
92 (74.8%)
92 (74.8%)
Pregnancy intention
χ2 = 36.54
<0.001
Intended
57 (46.0%)
102 (82.3%)
mistimed
61 (49.2%)
18 (14.5%)
Unwanted
6 (4.8%)
4 (3.2%)
NB: IPI = interpregnancy interval, SD = standard deviation, CI = confidence interval, U = Mann–Whitney U-test.