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. 2021 Sep 29;2(1):100023. doi: 10.1016/j.xagr.2021.100023

Table 5.

Hierarchical linear models predicting diastolic maternal blood pressure


Unstandardized coefficient (SE)
Variables Model 1 Model 2
Gestational wk (reference: 16 wk)
 20 wk −1.08 (0.85) −7.80 (4.09)a
 24 wk −1.76 (0.86)b −1.54 (3.85)
 28 wk −1.65 (0.88) −9.65 (3.77)b
 32 wk −0.30 (0.94) −3.90 (3.77)
 36 wk 1.50 (1.02) 0.25 (3.56)
Exercise type (reference: control group)
 Aerobic −8.74 (3.61)b
 Combination −6.88 (3.66)a
 Resistance −9.16 (3.72)b
Prepregnancy BMI 0.28 (0.11)b
Hypertensive disorders of pregnancy 8.45 (2.33)c
Constant 58.57 (0.84)c 58.71 (4.41)c
Gestational wk × exercise type
Reference: 16 wk × control
 16 wk × aerobic −8.50 (3.65)b
 16 wk × combination −6.91 (3.71)a
 16 wk × resistance −8.68 (3.77)b
Reference: 20 wk × control
 20 wk × aerobic −0.84 (3.61)
 20 wk × combination −0.88 (3.72)
 20 wk × resistance −1.13 (3.74)
Reference: 24 wk × control
 24 wk × aerobic −9.55 (3.19)d
 24 wk × combination −7.15 (3.31)b
 24 wk × resistance −7.00 (3.34)b
Reference: 28 wk × control
 28 wk × aerobic −0.64 (3.05)
 28 wk × combination −1.27 (3.20)
 28 wk × resistance −0.13 (3.21)
Reference: 32 wk × control
 32 wk × aerobic −3.78 (3.09)
 32 wk × combination −4.41 (3.21)
 32 wk × resistance −4.44 (3.24)
Reference: 36 wk × control
 36 wk × aerobic −6.72 (2.49)d
 36 wk × combination −6.55 (2.69)b
 36 wk × resistance −7.41 (2.92)b

Coefficients with different subscripts differed significantly from each other (P<.05) when compared in post hoc, contrast models that rotated the reference category. Coefficients with the same subscript did not differ significantly from each other.

BMI, body mass index; SE, standard error.

a

Indicates a significance of P<.10;

b

Indicates a significance of P<.05;

c

Indicates a significance of P<.001;

d

Indicates a significance of P<.01.

Murphy. Influence of exercise type on maternal blood pressure. Am J Obstet Gynecol Glob Rep 2022.