Table 2 Association of zBMI at birth and rate of zBMI gain in each period with blood pressure (mmHg)

From: Association of accelerated body mass index gain with repeated measures of blood pressure in early childhood

 

Systolic blood pressure

Diastolic blood pressure

 

Unadjustedb

Adjustedb,c

Unadjustedb

Adjustedb,c

Period (months)a

β

95% CI

β

95% CI

β

95% CI

β

95% CI

zBMI at birthd

−0.04

(−0.31, 0.23)

0.04

(−0.20, 0.28)

0.06

(−0.21, 0.32)

0.15

(−0.08, 0.37)

zBMI gain 0–3 me

0.5

(0.19, 0.80)

0.59

(0.31, 0.86)

0.17

(−0.12, 0.45)

0.28

(0.04, 0.53)

zBMI gain 3–18 m

1.15

(0.85, 1.45)

0.74

(0.46, 1.03)

0.62

(0.35, 0.88)

0.44

(0.20, 0.68)

zBMI gain 18–36 m

0.61

(0.10, 1.12)

0.43

(−0.06, 0.92)

−0.7

(−1.18, −0.22)

−0.03

(−0.42, 0.37)

  1. aEach row shows results from four separate models
  2. bzBMI gain is sequentially conditioned on zBMI at birth and rate of zBMI gain in each period occurring prior to the current period
  3. cAdjusted for age and height at time of BP measures, sex, family income, maternal (education, ethnicity, BMI, hypertension during pregnancy), parental history of hypertension, breastfeeding duration, visit type, and clinic
  4. dNot adjusted for breastfeeding duration
  5. eSince we observed a deceleration of −0.12 zBMI-units per month in the first 3 months (Supplementary Table 1), the interpretation of the positive effect estimate shows that a 1SD-unit slower rate of decrease in zBMI-units from 0–3 months was associated with higher BP (mmHg)
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