Birth Weight and Adolescent Health Indicators in Rarotonga, Cook Islands

While research into the developmental origins of health and disease (DOHaD) has highlighted the potential of healthy early-life environments for later noncommunicable disease risk reduction, such research is lacking in developing contexts. This study is set in Rarotonga, Cook Islands, a small island developing state in the Pacific-population 17 434. Adult overweight/obesity rates are 89.5%/69.8% and raised blood glucose affects 23.5%. This study investigates early-life associations with later-life health by matching birth weight and adolescent health indicators in Rarotongan-born students from 2016 to 2018. Of 195 students, median age 13 years, 67.7% were overweight/obese, 45.7% had central obesity, and 42.7% had raised blood pressure. A significant inverse association was found between birth weight and central obesity (P = .043). This is the first DOHaD study in a Pacific Island country and demonstrates the importance of prioritizing investment in the early-life environment to optimize later-life health and contribute to reducing the global noncommunicable disease burden.