“…Meta-analysis in 498 infants showed a cognitive development score of 0.5 SD below the population reference mean, expressed as MDI score of 92 ± 13 (mean ± SD) 6,7,25,26,28,29,31,[36][37][38]40,41 (Fig 2A), with data from BSID-II and -III at 12 and 24 months of age. Onesample t tests demonstrated that the mean MDI was significantly lower than the healthy population mean of 100 (P < .001; 95%, confidence interval [CI] 91.7-94.2).…”