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cardiovascular mortality and morbidity. Some studies have
reported a significant relationship between elevated blood pressure
in children with low birth weight.
Objective To assess blood pressure differences in primary school
students who had low and normal birth weights.
Methods This cross-sectional study was conducted in 170
children aged 6 to 12 years in March 2011 at a Medan primary
school, North Sumatera. Blood pressure was measured with a
standard mercury sphygmomanometer. A parental questionnaire
was used to collect information on birth weight. Data were
analyzed by student’s T-test for numerical data and Spearman’s
correlation test for a relationship between blood pressure and
Results The subjects consisted of 85 children with low birth weight
and 85 children with normal birth weight. The mean systolic (SBP)
and diastolic blood pressures (DBP) were significantly higher
in children with low birth weight than those with normal birth
weight [SBP: 106.7 vs. 99.8 mmHg, respectively, (P=0.0001); and
DBP: 69.2 vs. 63.5 mmHg, respectively, (P=0.0001)]. There were
relationships between elevated SBP and DBP and low birth weight,
as indicated by correlation coefficient [r=-0.365 and r=-0.425,
Conclusion Blood pressure is significantly higher in children with
low birth weight than in those with normal birth weight. Birth
weight was inversely related both to systolic and diastolic blood
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