Table 4 Linear and Poisson regression coefficients (β, 95% CI, p value) for the effects of prenatal exercise on overweight or obesity on cesarean birth and birth weight.

From: Influence of prenatal exercise on the relationship between maternal overweight and obesity and select delivery outcomes

Characteristics

Model (BMI + covariate[s])

Adjusted (Model 1 + Exercise)

β or RR**

95% CI

p value

β or RR**

95% CI

p value

Cesarean birth**

Overweight or Obese

1.63

0.92, 2.89

0.09

1.43

0.76, 2.72

0.27

Birth weight (kg)€

Overweight or obese

0.13

0.01, 0.25

0.04

0.16

0.02, 0.29

0.02

Cesarean birth**

0.01

 

0.07

Prepregnancy BMI (kg m−2)

− 0.13

− 0.23, − 0.04

0.004

− 0.12

− 0.22, − 0.02

0.02

Aerobic capacity (VO2peak)

− 0.11

− 0.21, − 0.01

0.03

− 0.12

− 0.24, − 0.01

0.03

Exercise level (METmin week−1)

0.0005

− 0.0001, 0.002

0.51

Birth weight (kg)€

 < 0.0001

 

 < 0.0001

Maternal race (black)

− 0.54

− 0.77, − 0.31

 < 0.0001

− 0.51

− 0.75, − 0.27

 < 0.0001

Gestational weight gain (lbs)

0.01

0.004, 0.02

0.001

0.01

0.004, 0.02

0.002

Maternal age (years)

− 0.02

− 0.04, 0.0003

0.05

− 0.02

− 0.04, 0.001

0.07

Aerobic capacity (VO2peak)

− 0.02

− 0.03, − 0.002

0.08

− 0.02

− 0.04, − 0.002

0.03

Exercise level (METmin week−1)

   

0.0003

0.003, 0.0006

0.03

  1. *Model-specific covariates included (1) cesarean birth: maternal race, MET∙min∙week−1; (2) birth weight: gestational age, maternal race, MET∙min∙week−1. **Poisson regression was performed, and the respective relative risks and 95% CIs were reported. €Linear regression was performed and the respective βs and 95% Cis were reported. Normal weight served as referent group.
  2. Significant values are in [bold].
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