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Table 3 Associations of BMI, WC and BFP with CS from regression analysis stratified by maternal age and fetal sex (stratified analyses)

From: Second-trimester anthropometric estimators of cesarean section: the agreement between body roundness index, body mass index, body fat percentage, and waist circumference

CS

vs.

VD

Crude results

Adjusted results

BRI

BMI

BFP

WC

BRI

BMI

BFP

WC

OR (95%CI)

OR (95%CI)

OR (95%CI)

OR (95%CI)

OR (95%CI)

OR (95%CI)

OR (95%CI)

OR (95%CI)

Maternal age

18–34

1.24*** (1.16, 1.32)

1.06 ***

(1.04, 1.08)

1.04***

(1.03, 1.05)

1.02 ***

(1.01, 1.03)

1.22***

(1.14, 1.29)

1.05***

(1.03, 1.07)

1.03 ***

(1.02, 1.04)

1.02 ***

(1.01, 1.03)

≥ 35

1.24***

(1.17, 1.32)

1.10 **

(1.03, 1.18)

1.05 **

(1.01, 1.09)

1.03 **

(1.00, 1.05)

1.23***

(1.16, 1.31)

1.06***

(1.04, 1.08)

1.03 **

(1.02, 1.04)

1.02 **

(1.01, 1.03)

Fetal sex

Male

1.30***

(1.16, 1.45)

1.08 ***

(1.05, 1.12)

1.04 ***

(1.02, 1.06)

1.02 ***

(1.01, 1.04)

1.28***

(1.15, 1.44)

1.07 ***

(1.04, 1.11)

1.04***

(1.02, 1.06)

1.03 ***

(1.01, 1.04)

Female

1.22***

(1.14, 1.31)

1.06 ***

(1.04, 1.08)

1.04 ***

(1.02, 1.05)

1.01 ***

(1.01, 1.02)

1.20***

(1.11, 1.29)

1.05 ***

(1.03, 1.07)

1.03 ***

(1.02, 1.04)

1.02 ***

(1.01, 1.03)

  1. Notes: CS, cesarean section; VD, vaginal delivery; BRI, body roundness index; BMI, body mass index; BFP, body fat percentage; WC, waist circumference; ***, p<0.001; covariates adjusted: maternal age, height, weight, gravidity, parity, birthweight, fetal sex; height and weight excluded from the BMI model; height excluded from the BRI model. Additionally, the stratification variable was not adjusted for within subgroups
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BMC Pregnancy and Childbirth

ISSN: 1471-2393

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