Comparison of Placenta Previa and Placenta Accreta Spectrum Disorder Following Previous Cesarean Section between Women with a Short and Normal Interpregnancy Interval

Table 5

The association between clinical factors and the presence of placenta previa using ultrasound among women with a short interpregnancy interval (n = 124).

Variables	Placenta previa by ultrasound		Test stat	value
	Present	Absent
Parity			U = 518.00	0.34
Mean (SD)	2.55 (1.44)	2.09 (0.94)
95% CI	1.58–3.51	1.91–2.26
Median	3.00	2.00
Min-Max	1.00–5.00	1.00–4.00
Number of C/S			U = 378.50	0.02
Mean (SD)	2.18 (0.08)	1.45 (0.65)
95% CI	1.46–2.91	1.33–1.57
Median	2.00	1.00
Min-Max	1.00–4.00	1.00–4.00
Mean gestational age (weeks)			U = 512.00	0.34
Mean (SD)	17.55 (6.02)	19.35 (5.76)
95% CI	13.50–21.59	18.27–20.42
Median	18.00	18.00
Min-Max	7.00–28.00	9.00–32.00
Mean systolic BP (mmHg)			U = 449.50	0.12
Mean (SD)	115.45 (16.35)	107.74 (11.32)
95% CI	104.47–126.44	105.63–109.85
Median	110.00	110.00
Min-Max	90.00–140.00	80.00–140.00
Mean diastolic BP (mmHg)			U = 579.00	0.69
Mean (SD)	67.73 (9.32)	67.26 (7.71)
95% CI	81.47–73.99	65.82–68.69
Median	70.00	70.00
Min-Max	50.00–80.00	50.00–90.00
Body mass index			χ^2 = 0.56	0.91
Underweight (n = 1)	0 (0.0%)	1 (0100.0%)
Normal (n = 3)	0 (0.0%)	3 (100.0%)
Overweight (n = 27)	3 (11.1%)	24 (88.9%)
Obese (n = 92)	8 (8.7%)	84 (91.3%)

NB: C/S = cesarean section; IPI = interpregnancy interval, SD = standard deviation, CI = confidence interval, U = Mann–Whitney U test.