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Demographic data for the included infants
| n = 28 | n | Mean (SD) |
|---|---|---|
| Boys/girls | 13/15 | |
| Gestational age (wk) | 39.9 (1.1) | |
| Age at examination (h) | 46.9 (45.1) | |
| Birth weight (g) | 3677.3 (521.1) | |
| Apgar 1 min | 9.0 (0.5) | |
| Apgar 5 min | 9.9 (0.4) | |
| Apgar 10 min | 9.9 (0.6) | |
| Delivery mode (normal delivery/vacuum extraction/Caesarean section) | 24/1/3 | |
| Time since last feed (h) | 0.8 (0.9) | |
| Sucking during examination (yes/no) | 8/20 | |
| Parents present (Mother/father/both/unknown) | 11/0/16/1 |
