Vagal Withdrawal and Sympathetic Overactivity Contribute to the Genesis of Early-Onset Pregnancy-Induced Hypertension

Table 3

Comparison of age, body weight (BW), body mass index (BMI), heart rate (HR), systolic blood pressure (SBP) and diastolic blood pressure (DBP) between early onset PIH (before completion of the 34 weeks) and late onset PIH (after completion of the 34 weeks).

Parameters at diff. weeks	Early onset PIH (𝑛=15)	Late onset PIH (𝑛=16)	𝑃 values
At 12th week
Age	24.46 ± 4.10	25.94 ± 2.80	.2474
BW	61.20 ± 14.80	54.75 ± 13.00	.2068
BMI	25.47 ± 9.90	23.80 ± 6.17	.5746
BHR	93.96 ± 10.22	86.41 ± 9.12	.0381
SBP	117.66 ± 9.23	110.41 ± 10.68	.0531
DBP	67.50 ± 6.10	61.33 ± 5.25	.0052
At 24th week
BW	62.50 ± 18.50	58.30 ± 13.10	.4693
BMI	26.97 ± 10.20	25.13 ± 8.26	.5841
BHR	94.16 ± 9.071	86.58 ± 8.30	.0215
SBP	125.10 ± 8.10	116.66 ± 9.69	.0138
DBP	76.40 ± 7.05	67.50 ± 8.10	.0029
At 31st week
BW	67.83 ± 16.76	63.75 ± 13.32	.4711
BMI	28.90 ± 10.56	28.52 ± 7.50	.6764
BHR	100.33 ± 10.69	90.50 ± 8.24	.0094
SBP	131.80 ± 9.35ff	122.33 ± 12.84f	.0350
DBP	86.80 ± 13.76fff,a	76.24 ± 12.04fff,a	.0363

The values are mean ± SD; Analysis of each parameter across the three weeks, one-way ANOVA, followed by Tukey-Kramer post-hoc was used. The 𝑃 values depicted in the last column indicate comparison between early-onset and late-onset PIH groups. The findicates comparison with the 12th week and the a indicates comparison with the 24th week of respective groups. ^f𝑃<.05; ^ff𝑃<.01; ^fff𝑃<.001; ^a𝑃<.05; (𝑛=13 in early-onset group at the 31st week).