Chandima N D Balasuriya1,2, Astrid Kamilla Stunes1, Mats P Mosti1, Berit Schei3,4, Marit S Indredavik1,5,6, Ingrid K Hals1, Kari Anne I Evensen1,3, Unni Syversen1,2. 1. Department of Clinical and Molecular Medicine, Faculty of Medicine and Health Sciences, Norwegian University of Science and Technology (NTNU), Trondheim, Norway. 2. Department of Endocrinology, St. Olavs Hospital, Trondheim University Hospital, Trondheim, Norway. 3. Department of Public Health and Nursing, Norwegian University of Science and Technology (NTNU), Trondheim, Norway. 4. Department of Gynecology at the Women's Clinic, St. Olavs Hospital, Trondheim University Hospital, Trondheim, Norway. 5. Regional Centre for Child and Youth Mental Health and Child Welfare, Norwegian University of Science and Technology (NTNU), Trondheim, Norway. 6. Department of Child and Adolescent Psychiatry, St. Olavs Hospital, Trondheim University Hospital, Trondheim, Norway.
Abstract
Context and Objectives: Low birthweight (LBW) has emerged as a risk factor of metabolic syndrome (MetS). Whether adults with very low birthweight (VLBW) born preterm are at higher risk than individuals who were term-born small for gestational age (tb-SGA) is not established. We assessed metabolic outcomes, including relation with skeletal parameters, in these two LBW categories. Design, Participants, and Outcomes: This follow-up cohort study included 189 individuals (females 51%), aged 25 to 28 years; 55 were preterm VLBW (≤1500 g), 59 were tb-SGA (<10th percentile), and 75 were controls (≥10th percentile). Outcomes were indices of MetS: blood pressure (BP), waist circumference, fasting glucose, lipid profile, and association between calculated MetS score and bone mineral density (BMD) and trabecular bone score (TBS), a measure of bone quality. Results: Compared with controls, individuals with VLBW displayed higher systolic [mean (SD), 126 (13.3) vs 119 (12.3) mm Hg; 95% CI, 1.27 to 11.48 mm Hg] and diastolic [71.9 (7.6) vs 68.6 (7.1) mm Hg; 95% CI, 0.3 to 6.2 mm Hg] BP, higher glycated hemoglobin, higher C-peptide, increased insulin resistance (Homeostatic Model Assessment 2), and lower high-density lipoprotein cholesterol [1.34 (0.3) vs 1.50 (0.4); 95% CI, 0.32 to 0.01]. Substantial differences were mainly seen between control females and females with VLBW. The adults who were tb-SGA had higher waist circumference and higher total and low-density lipoprotein cholesterol compared with controls. In males, MetS score correlated positively with BMD and inversely with TBS. Conclusions: The LBW groups and preferentially females in the VLBW group displayed a less favorable metabolic profile than did controls. The inverse association between MetS score and bone quality suggests enhanced future fracture risk.
Context and Objectives: Low birthweight (LBW) has emerged as a risk factor of metabolic syndrome (MetS). Whether adults with very low birthweight (VLBW) born preterm are at higher risk than individuals who were term-born small for gestational age (tb-SGA) is not established. We assessed metabolic outcomes, including relation with skeletal parameters, in these two LBW categories. Design, Participants, and Outcomes: This follow-up cohort study included 189 individuals (females 51%), aged 25 to 28 years; 55 were preterm VLBW (≤1500 g), 59 were tb-SGA (<10th percentile), and 75 were controls (≥10th percentile). Outcomes were indices of MetS: blood pressure (BP), waist circumference, fasting glucose, lipid profile, and association between calculated MetS score and bone mineral density (BMD) and trabecular bone score (TBS), a measure of bone quality. Results: Compared with controls, individuals with VLBW displayed higher systolic [mean (SD), 126 (13.3) vs 119 (12.3) mm Hg; 95% CI, 1.27 to 11.48 mm Hg] and diastolic [71.9 (7.6) vs 68.6 (7.1) mm Hg; 95% CI, 0.3 to 6.2 mm Hg] BP, higher glycated hemoglobin, higher C-peptide, increased insulin resistance (Homeostatic Model Assessment 2), and lower high-density lipoprotein cholesterol [1.34 (0.3) vs 1.50 (0.4); 95% CI, 0.32 to 0.01]. Substantial differences were mainly seen between control females and females with VLBW. The adults who were tb-SGA had higher waist circumference and higher total and low-density lipoprotein cholesterol compared with controls. In males, MetS score correlated positively with BMD and inversely with TBS. Conclusions: The LBW groups and preferentially females in the VLBW group displayed a less favorable metabolic profile than did controls. The inverse association between MetS score and bone quality suggests enhanced future fracture risk.
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