Percentage of time abdominal skin temperature (Tc) > 37.5 and < 36.3°C and central-peripheral temperature difference > 2.0 and < 0 °C
| Postnatal age (days) | Tc % > 37.5 °C | Tc % < 36.3 °C | Td % > 2.0 °C | Td % < 0 °C |
|---|---|---|---|---|
| 1 | 16.7 | 12.2 | 2.7 | 18.3 |
| 2 | 13.9 | 6.3 | 4.3 | 9.8 |
| 3 | 14.8 | 8.1 | 4.8 | 7.3 |
| 4 | 8.0 | 7.1 | 6.4 | 5.5 |
| 5 | 14.4 | 8.6 | 7.2 | 4.9 |