Blood pressure patterns of hypertensive disorders of pregnancy in first and second trimester and contributing factors: a retrospective study

Figures & data

Figure 1. Flow chart of the study.

Table 1. Baseline and delivery characteristics of normal and HDP group.

	Normal group (n = 2050)	HDP group (n = 688)	p Value
Maternal age (years)	29.93 ± 4.01	29.51 ± 4.35	<.05
BMI (kg/m^2)	21.90 ± 3.08	23.81 ± 4.04	<.05
Unipara, n (%)	1213 (59%)	466 (68%)	<.05
Education level			<.05
Junior high school, n (%)	192 (9%)	84 (12%)
Senior high School, n (%)	233 (11%)	71 (10%)
Bachelor, n (%)	1398 (68%)	478 (69%)
Graduate student, n (%)	227 (11%)	55 (8%)
Apgar score
1 min	9.25 ± 1.03	9.19 ± 1.09	>.05
5 min	9.87 ± 0.49	9.82 ± 0.57	<.05
10 min	9.97 ± 0.20	9.95 ± 0.27	>.05
Baby boy, n (%)	1080 (53%)	339 (49%)	>.05
Noenatal weight (g)	3240.34 ± 475.87	3220.19 ± 579.48	>.05
Noenatal height (cm)	49.67 ± 1.52	49.57 ± 1.87	>.05
Gestational weight gain (kg)	13.83 ± 4.41	14.98 ± 5.08	<.05
Caesarean section, n(%)	906 (44%)	373 (54%)	<.05

Figure 2. Blood pressure patterns during the pregnancy.

Table 2. Blood pressure in different gestational age.

Gestational age (weeks)	Normal Group SBP (mmHg) (n = 2050)	HDP Group SBP (mmHg) (n = 688)	F value	p Value	Normal Group DBP (mmHg) (n = 2050)	HDP Group DBP (mmHg) (n = 688)	F value	p Value
8 + 0 to 10 + 6 weeks	107 ± 10.24	113 ± 9.78	459.51	.00	69 ± 7.37	74 ± 7.42	476.32	.00
11 + 0 to 13 + 6 weeks	107 ± 10.63	114 ± 9.94	367.07	.00	69 ± 7.41	74 ± 7.78	416.69	.00
14 + 0 to 16 + 6 weeks	107 ± 10.38	114 ± 10.15	480.90	.00	68 ± 7.27	73 ± 7.57	463.58	.00
17 + 0 to 19 + 6 weeks	106 ± 9.88	113 ± 11.08	339.01	.00	67 ± 6.92	72 ± 7.59	361.73	.00
20 + 0 to 22 + 6 weeks	106 ± 10.28	114 ± 10.72	362.13	.00	67 ± 6.95	72 ± 7.38	448.22	.00
23 + 0 to 25 + 6 weeks	105 ± 10.05	113 ± 10.20	338.27	.00	66 ± 6.78	72 ± 7.42	366.57	.00
26 + 0 to 28 + 6 weeks	106 ± 10.15	114 ± 10.77	362.18	.00	67 ± 6.91	73 ± 7.61	416.23	.00
Admission	119 ± 9.95	135 ± 13.39	1043.06	.00	78 ± 7.60	91 ± 9.12	1183.18	.00
Delivery	116 ± 9.20	125 ± 12.78	377.60	.00	72 ± 7.57	78 ± 9.82	263.34	.00
F value	638,790.29				391,379.03
p Value	.00				.00

Table 3. Blood pressure patterns during the pregnancy.

Pairwise comparisons		p Value
		Normal group SBP	Normal group DBP	HDP group SBP	HDP group DBP
8 + 0 to 10 + 6 weeks	11 + 0 to 13 + 6 weeks	.78	1.00	.78	1.00
	14 + 0 to 16 + 6 weeks	.46	.00	.46	.00
	17 + 0 to 19 + 6 weeks	.03	.00	.03	.00
	20 + 0 to 22 + 6 weeks	.04	.00	.04	.00
	23 + 0 to 25 + 6 weeks	.00	.00	.00	.00
	26 + 0 to 28 + 6 weeks	.31	.00	.31	.01
	Admission	.00	.00	.00	.00
	Delivery	.00	.00	.00	.00
11 + 0 to 13 + 6 weeks	14 + 0 to 16 + 6 weeks	.30	.00	.30	.00
	17 + 0 to 19 + 6 weeks	.02	.00	.02	.00
	20 + 0 to 22 + 6 weeks	.02	.00	.02	.00
	23 + 0 to 25 + 6 weeks	.00	.00	.00	.00
	26 + 0 to 28 + 6 weeks	.21	.00	.21	.00
	Admission	.00	.00	.00	.00
	Delivery	.00	.00	.00	.00
14 + 0 to 16 + 6 weeks	17 + 0 to 19 + 6 weeks	.15	.00	.15	.41
	20 + 0 to 22 + 6 weeks	.16	.00	.16	1.00
	23 + 0 to 25 + 6 weeks	.00	.00	.00	.00
	26 + 0 to 28 + 6 weeks	.72	.00	.72	1.00
	Admission	.00	.00	.00	.00
	Delivery	.00	.00	.00	.00
17 + 0 to 19 + 6 weeks	20 + 0 to 22 + 6 weeks	.99	.33	.99	1.00
	23 + 0 to 25 + 6 weeks	.00	.00	.00	1.00
	26 + 0 to 28 + 6 weeks	.30	1.00	.30	.17
	Admission	.00	.00	.00	.00
	Delivery	.00	.00	.00	.00
20 + 0 to 22 + 6 weeks	23 + 0 to 25 + 6 weeks	.00	.78	.00	.36
	26 + 0 to 28 + 6 weeks	.30	.12	.30	1.00
	Admission	.00	.00	.00	.00
	Delivery	.00	.00	.00	.00
23 + 0 to 25 + 6 weeks	26 + 0 to 28 + 6 weeks	.00	.00	.00	.00
	Admission	.00	.00	.00	.00
	Delivery	.00	.00	.00	.00
26 + 0 to 28 + 6 weeks	Admission	.00	.00	.00	.00
	Delivery	.00	.00	.00	.00
Admission	Delivery	.00	.00	.00	.00

Figure 3. Influences from advanced age and obesity on blood pressure patterns.