Table 1.
Birth and scanner related measures (mean (standard deviation)) for the subjects included in the study, by group. Group differences were tested with a chi‐squared test (gender and MRI site) or an independent samples t‐test (age, gestational age, and birth weight).
| All controls | All VP/VLBW | P‐value | |
|---|---|---|---|
| n = 53 | n = 56 | ||
| Age, years | 27.09 (0.79) | 26.89 (0.6) | 0.154 |
| Sex, f/m | 17/36 | 20/36 | 0.843 |
| Gestational age at birth, weeks | 39.64 (1.06) | 30.38 (1.86) | <0.001* |
| Birth weight, grams | 3336 (482) | 1335 (316) | <0.001* |
| Optimality score | 0.42 (0.69) | 9.16 (2.53) | <0.001* |
| MRI site (n) | |||
| Bonn:Achieva | 8 | 3 | 0.132 |
| Bonn Ingenia | 10 | 27 | 0.005* |
| Munich Achieva | 19 | 23 | 0.537 |
| Munich Ingenia | 16 | 3 | 0.003* |