Key result
Healthy infants maintain stable oscillometric blood pressure near 95/57 mm Hg throughout the first year.
Why the study?
The study was conducted to determine reference blood pressure values in a cohort of healthy infants at 3, 6, and 12 months of age.
Cohort (n=2,100)
Yes
This study establishes consistent reference values for oscillometric blood pressure in healthy infants across 3, 6, and 12 months of age.
Provides reference BP values for healthy infants; extends normative data but leaves open validation in diverse cohorts.
Objective To determine reference blood pressure (BP) values in a cohort of healthy infants at 3, 6 and 12 months of age. Design An antenatally recruited population-based mother–child cohort study. Setting The multicentre Preventing Atopic Dermatitis and ALLergies in children study, recruiting non-selected pregnant women in Norway and Sweden between 2014 and 2016. Infant oscillometric BP was measured at clinical follow-up visits at 3, 6 and 12 months of age. Patients In total, 2100 infants had BP readings available during infancy. Main outcome measures Systolic, diastolic and mean arterial BP at each follow-up visit based on successful BP measurements defined as three readings obtained in a calm state with systolic BP within a 20 mm Hg range. Results Successful BP measurements were obtained in 1778 infants at 3, 6 and/or 12 months of age. Median systolic/diastolic BP (mean arterial pressure) was 95/56 (69) mm Hg at age 3 months, 96/57 (72) mm Hg at 6 months and 95/57 (71) mm Hg at 12 months. Conclusions This study establishes reference values for oscillometric BP in healthy infants and shows consistent measurements across 3, 6 and 12 months of age.
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Vallevik et al. (2026) conducted a cohort in Healthy infants (n=2,100). Age (3, 6, and 12 months) was evaluated on Systolic, diastolic and mean arterial BP at each follow-up visit based on successful BP measurements. Oscillometric blood pressure measurements in healthy infants showed consistent median systolic/diastolic values of 95/56 mm Hg at 3 months, 96/57 mm Hg at 6 months, and 95/57 mm Hg at 12 months.
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