Study finds, link between Number of Siblings and Cardiovascu
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The number of siblings could be used to identify people who are at higher risk and could benefit from early intervention. A Study was conducted to determine the association of number of siblings on cardiovascular risk factors in childhood and in adulthood.

The Cardiovascular Risk in Young Finns Study had 3,554 participants having cardiovascular disease risk factor data at baseline in 1980 and 2,491 individuals with longitudinal risk factor data at the 2011 follow-up. At the start of the study, participants were divided into groups based on the number of siblings they had (0, 1, or more than 2).

Risk factors in childhood and adulthood (BMI, physical activity, hypertension, dyslipidemia, and overweight, as well as metabolic syndrome) were employed as outcomes. Age and gender were factored into the analysis.

Results:
--In childhood, participants without siblings had higher BMI (18.2kg/m2) than those with 1 sibling (17.9kg/m2) or more than one sibling (17.8kg/m2).

--Childhood physical activity index was lower among participants without siblings compared with participants with 1 sibling or more than one sibling.

--Odds ratio (OR) for adulthood hypertension was lower among participants with 1 sibling and more than one sibling compared with participants with no siblings.

--OR for obesity was lower among participants with 1 sibling and more than one sibling compared with those with no siblings.

In conclusion, Children who grew up without siblings had higher levels of cardiovascular risk factors in childhood and adulthood.

Source: https://www.jpeds.com/article/S0022-3476(21)00509-6/fulltext?rss=yes
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