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Table 3: Demographic and clinical characteristics
PPREMO (n = 197) dHCP
Preterm, Early MR Imaging Preterm, TEA MR Imaging Control, TEA MR Imaging
No. 94 of 121 81 of 105 22 of 27 455 of 506 (95 preterm)
Sex (female) 61% 63% 50% 45%
PMA at MR imaging (wk)^{^a} 31.86 ± 1.96 (29–35) 40.71 ± 1.43 (38–47) 41.29 ± 1.25 (39–44) 40.71 ± 2.86 (29–45)
GA (wk)^{^a} 28.40 ± 2.00 (23–31) 28.50 ± 2.20 (24–31) 40.00 ± 0.98 (38–41) 39.71 ± 2.82 (24–42)
Birth weight (g)^{^a} 1107 ± 368 (494–1886) 1061 ± 391 (494–1886) 3516 ± 157 (2932–4200) 3250 ± 928 (540–4800)
↵a P < .05 for 2-sided t test comparing preterm infants at 40 weeks with term-born controls (PPREMO). Continuous variables are given as median ± interquartile range (range). Scans with poor quality (PPREMO, n = 39), realignment errors (PPREMO, n = 1; dHCP, n = 39), and severe pathology (PPREMO, n = 16; dHCP, n = 12) were excluded.