Children exposed to repeat antenatal betamethasone and those exposed to placebo had similar total fat mass ( geometric mean ratio 0.98 , 95 % confidence interval [ CI ] 0.78 to 1.23 ) , minimal model insulin sensitivity ( geometric mean ratio 0.89 , 95 % CI 0.74 to 1.08 ) , 24-hour ambulatory blood pressure ( mean difference systolic 0 mm Hg , 95 % CI -2 to 2 ; diastolic 0 mm Hg , 95 % CI -1 to 1 ) , and estimated glomerular filtration rate ( mean difference 1.2 mL/min/1 .73 m ( 2 ) , 95 % CI -3.2 to 5.6 ) .